CL03 EN09 MCB THERE IS A HOLE IN MY GALAXY

by

There’s a Hole in My Galaxy

1. The Hook (The Literary Gateway)

Imagine if your best friend convinced you to “borrow” your family’s high-tech rocket ship for a quick weekend joyride to Pluto, only to find yourselves trapped in a terrifying, silent tug-of-war with a monster you cannot even see—an invisible cosmic drain that can swallow light itself and rip your very existence into nothingness.

In this chapter, we accompany three young space travelers—Maya, her space-obsessed friend Ava, and her curious younger brother Reyhaan—on a hot summer night in the year 2563. What begins as a rebellious teenage escapade rapidly escalates into a gripping battle for survival against the universe’s most formidable mystery: a black hole.

But the mystery isn’t just in the stars; it’s also in the very language we use to tell this tale. Have you ever wondered why words like butterfly, backpack, and freshwater hold two entirely different worlds within a single breath? Or how a simple shift from the simple present tense to the simple past tense can instantly alter our perception of time—just as a black hole warps the fabric of time itself? Let us embark on this journey to explore how science, human relationships, and the rules of language collide.

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2. The Human Element (Why This Matters)

This narrative is far more than a simple science-fiction adventure; it is a profound exploration of human choices, cognitive biases, and the critical importance of boundaries.

  • The Weight of Peer Pressure and Decision-Making: At the heart of the conflict is a highly relatable human dilemma: the struggle to say “no” to someone we love. Maya is fully aware of her parental boundaries and the inherent dangers of piloting a spaceship without adult supervision. Yet, Ava’s persuasive pleading (“Please, please… We’ll be back before your parents return”) overrides Maya’s logical reservations. This highlights how easily we minimize risks (such as assuming Pluto is “not that far” or that a weekend is plenty of time) when driven by intense desire. Studying this interaction helps students build critical empathy and self-awareness regarding peer pressure, risk assessment, and the long-term consequences of seemingly minor compromises.
  • Scientific Literacy as a Shield: The story demonstrates that knowledge is not merely academic—it is a tool for survival. When the ship is pulled off course, it is Ava’s deep understanding of astronomy and the event horizon that alerts the group to the danger. Without her immediate, panicked recognition of the star distortion in Orion’s Belt, they would not have fired the emergency boosters in time to escape.
  • The Illusion of Time: In real life, we often treat time as an absolute, unchanging constant. However, as the children discover when they return to a chilly Earth in the middle of winter—six months after leaving on a hot summer night—time is deeply relative. This encourages students to contemplate the fragile nature of our reality and appreciate how our understanding of physical laws impacts our societal frameworks, relationships, and place in the cosmos.

3. Structural Breakdown

A. The Narrative Sequence (Literature Breakdown)

  1. Exposition (The Rebellion):
    • Setting the Scene: It is the year 2563 on Earth. Maya’s family owns a highly advanced rocket ship, but she is strictly forbidden from piloting it without a grown-up.
    • The Conflict Initiated: Ava, Maya’s best friend who is deeply passionate about space, desperately wants to see Pluto. Taking advantage of the fact that Maya’s parents are away for the weekend, Ava uses persistent persuasion to wear down Maya’s protests (“My parents will be angry”).
    • The Departure: Maya reluctantly agrees. Her younger brother, Reyhaan, tags along. The three friends launch into space on a hot summer night.
  2. Rising Action (The Approaching Shadow):
    • Scientific Foreshadowing: As they fly, Ava enthusiastically shares space facts. She explains that the sun generates energy by burning hydrogen to produce helium, and will eventually die in about five billion years. She notes that medium stars like our sun become white dwarfs when they die, whereas massive stars collapse to become black holes.
    • The Alert: Suddenly, the spaceship’s computer blares: “ALERT! ALERT! HEAVY OBJECT PULLING SHIP OFF COURSE.”
    • The Visual Distortion: Reyhaan cannot see anything, but Maya notices a bizarre anomaly: the stars of Orion’s Belt are no longer aligned in a straight line.
    • The Realization: Ava realizes with horror that they are near a black hole. She explains that the massive gravitational field is bending the light of nearby stars like a optical lens. The ship is moving at the speed of the black hole’s event horizon, just 5 kilometers away.
  3. Climax (The Tug-of-War):
    • The Panic: Ava stammers that they must escape immediately, or they will be pulled in forever. Shaking with fear, Maya yells frantic commands to the computer: “FULL POWER, DOUBLE POWER… FIRING EMERGENCY BOOSTERS.”
    • The Descent: The black hole’s gravitational pull proves incredibly powerful. The computer counts down their terrifying approach: 4 KILOMETRES… 3 KILOMETRES… 2 KILOMETRES…
    • The Climax/Hold: At just 1 KILOMETRE away, the computer announces: “HOLDING.” At 500 METRES away from the point of no return, the ship applies maximum power.
    • The Silent Struggle: The rocket remains completely motionless in space. A silent, invisible tug-of-war occurs between the immense gravitational force of the collapsing star and the cutting-edge engineering of the rocket ship. Finally, the computer declares: “PULLING AWAY.”
  4. Falling Action (The Scientific Explanation):
    • The Retreat: The computer counts up: ONE KILOMETRE… ONE AND A HALF KILOMETRES… TWO KILOMETRES AWAY… The terrified friends, who had been clinging to each other, finally collapse back into their seats with one collective desire: to return home to Earth.
    • The Explanation of Black Holes: Once safe, Maya and Reyhaan ask Ava to explain what just happened. Ava explains that a black hole is formed when a star much larger than our sun dies and collapses into itself, squeezing into a microscopic point of infinite density (“squeezes into nothing”).
    • The Mechanics of the Event Horizon: She clarifies that the event horizon is the absolute point of no return. Anything—even light—that crosses this boundary is sucked into the center, torn into nothing, and lost to the outside world forever.
    • The Cosmic Scale: Ava reassures her nervous friends that while scientists estimate there is one black hole for every thousand stars (about a billion in total), the supermassive black hole at the center of our galaxy (massing over a million suns) is safely billions of kilometers away.
  5. Resolution (The Warp in Time):
    • The Return: The ship lands back in Maya and Reyhaan’s backyard, with the computer welcoming them back to Earth.
    • The Chilly Surprise: Stepping out, they are hit by freezing, chilly winds. They are deeply confused; they had left on a super-hot summer night and believed they had only been gone for a few hours.
    • The Discovery: Ava observes: “It’s winter.” Maya completes the terrifying deduction: because time runs at a much slower rate near a black hole, six months have passed on Earth during their brief struggle. Their parents returned from their weekend trip months ago, and the three friends are in massive trouble.

B. The Grammatical Sequence (Grammar Breakdown)

The chapter integrates critical linguistic rules that match the literary theme of joining elements (compound words) and shifting times (present vs. past tense).

  1. Compound Words:
    • Definition: Words formed by combining two separate, independent words with distinct meanings to create a brand-new word with its own unique meaning.
    • Formatting/Structure: These words are joined together without any spaces between them.
    • Formulas: \[\text{Noun} + \text{Noun} = \text{Compound Noun (e.g., Bedroom, Bathroom)}\] \[\text{Noun} + \text{Verb} = \text{Compound Word (e.g., Sunrise)}\] \[\text{Adjective} + \text{Noun} = \text{Compound Word (e.g., Freshwater)}\]
  2. Simple Present Tense:
    • Usage: Used to describe actions that occur regularly, habitual behaviors, universal scientific facts, or general statements about people and things.
    • Structural Formulas:
      • Singular Subject (He/She/It/Singular Noun): \[\text{Subject} + \text{Verb(s/es)} + \text{Object}\] (Example: “He comes to school by bus.” / “She tidies up the room every day.”)
      • Plural Subject (I/You/We/They/Plural Noun): \[\text{Subject} + \text{Base Verb} + \text{Object}\] (Example: “Cats give birth to many kittens.”)
  3. Simple Past Tense:
    • Usage: Used to denote actions that were completed at a specific, definite time in the past (sometime before now).
    • Structural Formulas:
      • Regular Verbs: Add -ed or -d to the base verb. \[\text{Subject} + \text{Verb-ed} + \text{Object}\] (Example: “The weather delayed the launch.”)
      • Irregular Verbs: Complete spelling change (no standard -ed pattern). \[\text{Subject} + \text{Irregular Past Verb} + \text{Object}\] (Example: “We sold our car.” / “I heard a noise.”)

4. Literary & Linguistic Vocabulary (The Word List)

  • Reluctantly – In an unwilling, hesitant, or disinclined manner. – “Maya reluctantly agrees.”
  • Dwarf – To cause to seem small, tiny, or insignificant in comparison. – “…when a star the size of the sun dies, it becomes a white dwarf.”
  • Gravitational field – The region of space surrounding a massive physical body in which another body experiences an attractive gravitational force. – “The gravitational field of the black hole is bending the light of the stars near it…”
  • Event horizon – A theoretical boundary surrounding a black hole; the absolute point of no return beyond which no matter, light, or radiation can escape. – “Anything that falls into the event horizon is lost forever to the outside world.”
  • Clinging – Holding on tightly, desperately, or tenaciously to someone or something. – “The three friends, who had been clinging to each other all this time, let go…”
  • Black hole – An extremely dense region of space formed by a collapsed giant star, with a gravitational field so intense that not even light can escape. – “…when a star larger than the sun dies, it collapses into itself… and becomes like a hole in space.”
  • Mass – A fundamental measure of the amount of matter in an object, which determines its resistance to acceleration. – “Roughly, it’s the weight of an object. More precisely, a measure of how difficult it is to accelerate (move) an object.”
  • Stunned – So thoroughly shocked, surprised, or astonished that one is temporarily unable to speak, move, or react. – “They are stunned by the chilly winds that hit their faces.”
  • Compound Word – A linguistic device where two separate words are joined together without spaces to make a new word. – “These words are formed by joining two separate words with different meanings.”
  • Simple Present Tense – A grammatical tense used to express habits, general truths, and scientific laws. – “These verbs tell us whether an action happens regularly or talks about people in general.”
  • Simple Past Tense – A grammatical tense used to describe actions that were completed in the past. – “Verbs that tell us about actions that happened in the past are in the simple past tense.”

5. Teacher’s Chapter Checklist

Literature & Comprehension Milestones

  • [ ] Analyze Character Dynamics: Students can contrast Maya’s caution with Ava’s impulsive curiosity and identify how peer pressure functions in the opening scene.
  • [ ] Trace Narrative Tension: Students can map out the rising action and locate the exact climax of the story (the 1-km/500-m silent space tug-of-war).
  • [ ] Understand the Science of Black Holes: Students can explain how a black hole forms (collapse of a star larger than the sun) and define the term event horizon.
  • [ ] Grasp the Concept of Time Dilation: Students can articulate how gravitational fields affect the rate of time and explain the twist ending of the six-month gap.
  • [ ] Appreciate Scientific History: Students can identify Subrahmanyam Chandrasekhar and explain his contribution to astrophysics (Nobel Prize for proving giant stars collapse into black holes).

Grammar & Linguistic Milestones

  • [ ] Master Compound Words: Students can correctly identify compound words from a list, split them into their constituent parts, and construct new ones without adding spaces.
  • [ ] Differentiate Tenses: Students can distinguish between simple present tense (regular actions/general truths) and simple past tense (completed past actions).
  • [ ] Apply Verb Conjugations: Students can convert regular and irregular base verbs into their correct present (e.g., tidy \(\rightarrow\) tidies) and past (e.g., catch \(\rightarrow\) caught) forms.
  • [ ] Phonetic Distinction (/v/ vs. /w/): Students can demonstrate proper mouth mechanics (rounding lips for /w/; biting lower lip for /v/) using the tongue-twisters provided.
  • [ ] Composition Mastery (Information Literacy): Students can evaluate the layout of a informational poster and design their own public informational poster using clear dates, times, and hooks.

6. Ready-Reckoner Student Revision Notes

I. Character Directory

  • Maya:
    • Who she is: The protagonist whose family owns a advanced rocket ship.
    • Key Traits: Cautious, protective, but easily persuaded.
    • Role in Plot: Reluctantly agrees to fly the ship; pilot who physically enters the commands into the computer to save them from the black hole.
  • Ava:
    • Who she is: Maya’s best friend.
    • Key Traits: Brilliant, passionate about space/astronomy, headstrong, and highly persuasive.
    • Role in Plot: Instigates the secret mission to Pluto; uses her scientific knowledge to recognize the danger of the black hole and explain its mechanics to the others.
  • Reyhaan:
    • Who he is: Maya’s younger brother.
    • Key Traits: Curious, easily frightened, and tag-along sibling.
    • Role in Plot: Acts as the curious observer; asks key questions about the death of the sun and black holes that prompt Ava’s explanations.

II. Full Plot Summary (Quick Reference)

  • The Forbidden Flight: In 2563, Ava begs Maya to fly her to Pluto while Maya’s parents are away for the weekend. Maya hesitates but agrees; Reyhaan tags along on a hot summer night.
  • The Gravity Well: On their way, the computer alerts them to a heavy object pulling them off course. Looking out, they see the stars of Orion’s Belt distorted. Ava realizes they are 5 km away from a black hole’s event horizon.
  • The Escaping boosters: Maya applies double power and fires the emergency boosters. The ship gets as close as 500 meters, holding its position in a silent tug-of-war. The advanced ship barely manages to break free and pull away.
  • The Astrophysics Lesson: As they return, Ava explains that dying giant stars collapse into tiny, hyper-dense black holes from which nothing—not even light—can escape. The boundary is the “event horizon”.
  • The Temporal Twist: When they land back in their backyard, they step out into freezing winter winds. Though it felt like only a few hours to them, six months have elapsed on Earth because time runs much slower near a black hole. Their parents are back and they are in immense trouble.

III. Key Science Concepts to Remember

  1. Star Death Outcomes:
    • Stars the size of our sun \(\rightarrow\) become White Dwarfs.
    • Stars much larger than our sun \(\rightarrow\) collapse into Black Holes.
  2. Black Hole Anatomy & Rules:
    • The Event Horizon: The theoretical boundary or “point of no return.” Inside it, the escape velocity exceeds the speed of light; anything crossing it is lost forever.
    • Density: Black holes are the densest objects in the universe. Throwing things into them makes them larger, but it is virtually impossible to make them smaller.
    • Time Dilation: Time behaves differently near strong gravity. It runs at a much slower rate near a black hole compared to Earth.
  3. Scientific Legend: Subrahmanyam Chandrasekhar was the Indian physicist who first discovered that massive stars collapse into black holes, earning him the Nobel Prize.

IV. Comprehensive Grammar & Vocabulary Reference

A. Compound Words Reference List
  • Rule: Two separate words joined with no space to make one word.
  • Textbook Examples:
    • \(\text{photo} + \text{graph} = \text{\textbf{photograph}}\)
    • \(\text{back} + \text{pack} = \text{\textbf{backpack}}\)
    • \(\text{butter} + \text{fly} = \text{\textbf{butterfly}}\)
    • \(\text{bath} + \text{room} = \text{\textbf{bathroom}}\)
    • \(\text{bare} + \text{foot} = \text{\textbf{barefoot}}\)
    • \(\text{bed} + \text{room} = \text{\textbf{bedroom}}\)
    • \(\text{cow} + \text{boy} = \text{\textbf{cowboy}}\)
    • \(\text{fresh} + \text{water} = \text{\textbf{freshwater}}\)
  • Exercise Formulas (Correct Combinations):
    • Tooth: Toothbrush, Toothpick, Toothpaste (Gum \(\rightarrow\) Not a valid compound word).
    • Sun: Sunlight, Sunrise, Sunshine (Heat \(\rightarrow\) Not a valid compound word).
    • Book: Bookshop, Bookmark, Bookshelf (Leaf \(\rightarrow\) Not a valid compound word).
    • Table: Tabletop, Tablecloth, Tablespoon (Fork/Spoon: spoon combines to make tablespoon, but fork is invalid).
    • Post: Postman, Postbox, Postscript (Letter \(\rightarrow\) Not a valid compound word).
B. Simple Present Tense Reference List
  • Rule: Regular habits, universal facts, or general truths.
  • Textbook Examples:
    • “He comes to school by bus.”
    • “She likes ice cream.”
  • Essential Exercise Conjugations:
    1. The elephant uses (use) its trunk to pick up things.
    2. Cats give (give) birth to many kittens at a time.
    3. The old scientist makes (make) wonderful toys.
    4. She tidies (tidy) up the room every day. (Note: Spelling shift from -y to -ies)
    5. The dog obeys (obey) his master’s orders.
    6. He does (do) his homework regularly.
C. Simple Past Tense Reference List
  • Rule: Actions completed in the past.
  • Textbook Examples:
    • “The weather delayed the launch by five days.”
    • “India successfully launched its first satellite into Mars’ orbit.”
  • Essential Regular vs. Irregular Conjugations (From Exercises):
    1. We sold (sell) our car. (Irregular)
    2. I heard (hear) a noise. (Irregular – add ‘d’)
    3. The man lost (lose) his way. (Irregular)
    4. He met (meet) his uncle. (Irregular)
    5. I wrote (write) a letter to my friend. (Irregular)
    6. Ketan bought (buy) a new mobile phone. (Irregular)
    7. Sahiba caught (catch) the ball. (Irregular)
    8. Pratik got (get) late for the school yesterday. (Irregular)
D. Phonetic Lab Checklist (/v/ vs. /w/)
  • The /w/ Sound: Round your mouth into an ‘O’ shape while speaking.
    • Practice words: while, what, west, wallet, wasp, water.
  • The /v/ Sound: Gently bite down on your lower lip with your upper teeth.
    • Practice words: vile, vat, vest, valet, vast, vote.
  • Tongue Twister Exercises:
    1. “She had vicious wishes that the worst would happen to the versed men; these vicious wishes made the versed men very wary that the worst could happen.”
    2. “We went to Wally’s volleyball event under the village’s wilted willow, with victory in mind. Wally would win the volley versus Vinny.”

QUESTIONS :

There’s a Hole in My Galaxy: Master Question Bank

1. The “Hidden” In-Text Questions (Mid-Chapter Extraction)

Q1. Based on the introductory “Warm-up” and “Learning Outcomes” section, define what a satellite is, explain what actual orbits look like in space, and state how they are traditionally represented on scientific charts and diagrams.

Q2. What is the name of the recent, highly celebrated space mission launched by India to attempt a soft landing on the moon, as highlighted in the introductory science sidebar?

Q3. Explain the precise nuclear reaction that fuels the sun, and detail what will eventually happen to our sun in five billion years when its fuel is completely exhausted compared to stars of much larger mass.

Q4. According to the scientific text at the end of the chapter, why are black holes with a radius of less than 3 kilometers considered unique, and when do scientists believe they were formed?

Q5. In the closing scientific analysis, why does the author classify the children’s space travel as “a fantasy” under our current physical laws? State the specific speed required to reach Pluto and back in a day, and the gravitational force a human body would experience during such rapid acceleration.

Q6. Based on the biographical information provided about the author, Ananya Dasgupta, what oral history archive project did she handle, and what is the title of the biography she co-authored?

Q7. In the “Composition” section poster for the Puducherry Planetarium Open Day, what are the names of the two special guests, and what are the exact times scheduled for the Q&A sessions?

Q8. According to the “Language Lab” phonetic instructions, what are the precise muscular mouth movements required to articulate the /w/ sound versus the /v/ sound, and which tongue twister is provided to practice the /v/ sound?

2. The Textbook Exercise Integration (Back-of-Chapter)

Comprehension

A. Answer these questions.

Q9. Which year does the story take place?

Q10. Who wanted to see pluto and how did she persuade Maya?

Q11. What happens to a sun when it dies?

Q12. Why were the three children afraid of entering a black hole?

Q13. What happens when something like a rocket ship falls into a black hole?

B. Answer these questions with reference to the context.

Q14. ‘ALERT! ALERT! HEAVY OBJECT PULLING SHIP OFF COURSE.’ a. Which ship is mentioned in the sentence and who are in it?

Q15. ‘ALERT! ALERT! HEAVY OBJECT PULLING SHIP OFF COURSE.’ b. What is the ‘heavy object’?

Q16. ‘ALERT! ALERT! HEAVY OBJECT PULLING SHIP OFF COURSE.’ c. The heavy object is pulling the ship off course. What was the original destination of the ship?

Q17. ‘LANDING. WELCOME BACK TO EARTH’ a. Which place on Earth did the rocket land?

Q18. ‘LANDING. WELCOME BACK TO EARTH’ b. Which season did the children experience when they landed?

Q19. ‘LANDING. WELCOME BACK TO EARTH’ c. How long do you think the children were in the rocket ship?

C. Think and answer.

Q20. Imagine yourself as one of the children in the rocket ship. How would you feel about getting so close to a black hole?

Q21. You came out of the black hole after 10 years. Although it felt hardly five minutes to you. Imagine a changed world. Write a short paragraph on your first day back.

Word Wonder

Q22. Cross (X) the word, which does not combine with the given word to form a compound word: tooth: A) brush B) pick C) paste D) gum

Q23. Cross (X) the word, which does not combine with the given word to form a compound word: sun: A) light B) rise C) heat D) shine

Q24. Cross (X) the word, which does not combine with the given word to form a compound word: book: A) leaf B) shop C) mark D) shelf

Q25. Cross (X) the word, which does not combine with the given word to form a compound word: table: A) top B) fork C) cloth D) spoon

Q26. Cross (X) the word, which does not combine with the given word to form a compound word: post: A) man B) box C) letter D) script

Learn About Language

A. Complete these sentences with the correct present tense form of the verb in brackets.

Q27. The elephant ______ (use) its trunk to pick up things.

Q28. Cats ______ (give) birth to many kittens at a time.

Q29. The old scientist ______ (make) wonderful toys.

Q30. She ______ (tidy) up the room every day.

Q31. The dog ______ (obey) his master’s orders.

Q32. He ______ (do) his homework regularly.

B. Fill in the blanks with the correct form of the verb in these sentences.

Q33. We ______ (selled/sold) our car.

Q34. I ______ (heard/heared) a noise.

Q35. The man ______ (lost/losed) his way.

Q36. He ______ (met/meeted) his uncle.

Q37. I ______ (writed/wrote) a letter to my friend.

Q38. Ketan ______ (bought/buyed) a new mobile phone.

Q39. Sahiba ______ (catched/caught) the ball.

Q40. Pratik ______ (got/getted) late for the school yesterday.

Language Lab

C. Listen to the passage and complete the sentences.

Q41. The story is about A) planets B) plants C) pollution D) space

Q42. The boy found a A) red flower B) red bird C) red ball D) red leaf

Q43. The boy looked up at ______ and got an idea. A) the sun B) the moon C) the stars D) the earth

Q44. He climbed into a A) space shuttle B) spaceship C) UFO D) balloon

Q45. The moon’s red shine is A) a warning for the planet B) a reflection of the sun C) the lunar eclipse D) a natural phenomenon

Composition

Q46. Name two places where you think the given poster for Puducherry Planetarium Open Day should be displayed. Give reasons for your choice.

3. Exhaustive Objective Bank (The Factual Baseline)

Multiple-Choice Questions (MCQs)

Q47. In what year is the story of Maya, Ava, and Reyhaan set on Earth?

A) 2026 B) 2563 C) 2154 D) 3000

Q48. Who is the author of the story “There’s a Hole in My Galaxy”?

A) Stephanie Suss Rison B) Carl Sagan C) Ananya Dasgupta D) Homi Jehangir Bhabha

Q49. Which famous Indian physicist first discovered that massive stars collapse into black holes, earning a Nobel Prize?

A) C.V. Raman B) Subrahmanyam Chandrasekhar C) Homi Jehangir Bhabha D) Vikram Sarabhai

Q50. How heavy is the black hole that pulls Maya’s spaceship off course compared to our Sun?

A) It is half as heavy as the Sun B) It is twice as heavy as the Sun C) It is ten times as heavy as the Sun D) It is over a million times as heavy as the Sun

Q51. What constellation’s stars are distorted, alerting Maya that they are being pulled by a black hole?

A) Ursa Major B) Orion’s Belt C) Cassiopeia D) Taurus

Q52. How far away is the spaceship from the event horizon when its speed matches the event horizon’s speed?

A) 1 kilometer B) 500 meters C) 5 kilometers D) 10 kilometers

Q53. What is the closest distance the rocket ship reaches to the event horizon before it successfully holds and pulls away?

A) 500 meters B) 1 kilometer C) 2 kilometers D) 1.5 kilometers

Q54. What is the total estimated number of black holes in the universe based on scientists’ guess of one black hole for every thousand stars?

A) One million B) Ten million C) One billion D) Ten billion

Q55. Where is the supermassive black hole with a mass of more than a million suns located?

A) Near Pluto’s orbit B) Right in the middle of our galaxy C) In Orion’s Belt D) Near the planet Venus

Q56. When the children land back in Maya and Reyhaan’s backyard, what season are they shocked to experience?

A) Summer B) Autumn C) Winter D) Spring

Q57. How much time passed on Earth while the children were fighting the gravitational pull of the black hole?

A) A few hours B) Two months C) Six months D) Ten years

Q58. Which of the following is defined as the absolute “point of no return” around a black hole?

A) Gravitational field B) White dwarf C) Event horizon D) Satellite orbit

Q59. According to the scientific text, what are the densest objects in the universe?

A) White dwarfs B) Black holes C) Satellites D) Planets

Q60. What is the minimum radius of black holes that are formed from collapsing giant stars?

A) 3 kilometers B) 5 kilometers C) 500 meters D) 30 million kilometers

Q61. What is the correct definition of “mass” as provided in the chapter’s scientific glossary?

A) The physical volume occupied by an object in space B) A measure of how difficult it is to accelerate (move) an object C) The absolute size and diameter of a stellar body D) The speed at which an object travels through space

Q62. What is the approximate distance of the supermassive black hole in the middle of our galaxy from Earth? A) 5 kilometers B) 500 meters C) About 30 million or billion kilometers D) Five billion kilometers

Q63. To travel to Pluto and back in a single day, a rocket ship would have to travel at what fraction of the speed of light?

A) One-tenth B) One-half C) One-quarter D) Three-quarters

Q64. What is the numerical equivalent of one-quarter of the speed of light as stated in the text?

A) 300,000 km/s B) 75,000 km/s C) 150,000 km/s D) 10,000 km/s

Q65. If passengers accelerated to 75,000 km/s over a couple of hours, they would experience a force approximately how many times their own weight?

A) 10 times B) 100 times C) 1,000 times D) 10,000 times

Q66. With which academic archives in Mumbai was author Ananya Dasgupta associated as an editor handling the Oral History Project?

A) International Centre for Theoretical Sciences B) Tata Institute of Fundamental Research C) Indian Institute of Science D) The Telegraph Archives

Q67. What are the names of the two special guests listed on the Puducherry Planetarium Open Day poster?

A) Dr K Parthasarathy and Dr M Kannagi B) Dr Subrahmanyam Chandrasekhar and Dr Ananya Dasgupta C) Dr Homi Bhabha and Dr Carl Sagan D) Dr Maya and Dr Ava

Q68. How frequently are the planetarium shows scheduled to run during the Open Day?

A) Every 30 minutes B) Every 45 minutes C) Every hour D) Every 15 minutes

Fill-in-the-Blanks

Q69. The sun gets its energy by burning ______ to produce helium.

Q70. When a star the size of the sun dies, it becomes a ______.

Q71. The gravitational field of the black hole bends the light of the stars near it like a ______ bends light.

Q72. When a star larger than the sun dies, it collapses into itself and squeezes into ______ to become like a hole in space.

Q73. The ______ of the black hole is the point of no return.

Q74. Scientists guess that there is, perhaps, one black hole for every ______ stars in the universe.

Q75. In the time that the children spent fighting the black hole, ______ months had gone by on Earth.

Q76. Black holes less than ______ kilometers in radius are not formed from collapsing stars but may have been produced during the early universe.

Q77. Compound words are formed by joining two separate words with ______ meanings.

Q78. In compound words, there is no ______ between the two words that form the new word.

Q79. Verbs in the simple present tense tell us whether an action happens ______ or talks about people in general.

Q80. Verbs that tell us about actions that happened in the past are in the ______ tense.

Q81. You have to make your mouth ______ while saying the words starting with a /w/ sound.

Q82. You have to ______ your lower lip while saying words starting with a /v/ sound.

Q83. During the Puducherry Planetarium Open Day, shows are free throughout the day specifically for ______ and ______.

True/False Questions (If False, correct the statement)

Q84. Orbits are actually visible as dotted lines in space just as they are shown on diagrams and charts. (If False, correct the statement)

Q85. Maya’s parents were away for the weekend when Ava convinced her to fly the rocket ship to Pluto. (If False, correct the statement)

Q86. The black hole that pulled the children’s ship off course was over a million times heavier than the sun. (If False, correct the statement)

Q87. The ship’s computer declared they were holding their position exactly 1 kilometer away from the event horizon before they successfully pulled away. (If False, correct the statement)

Q88. Throwing things into a black hole makes it smaller because it collapses further into itself. (If False, correct the statement)

Q89. Time runs at a faster rate near a black hole compared to anywhere else in the universe. (If False, correct the statement)

Q90. Subrahmanyam Chandrasekhar won the Nobel Prize for understanding that big stars collapse into black holes. (If False, correct the statement)

Q91. “Cowboy” and “bedroom” are examples of compound words. (If False, correct the statement)

Q92. The simple present tense form of the verb “tidy” for a singular subject is “tidied”. (If False, correct the statement)

Q93. The first planetarium show on the Open Day at Puducherry Planetarium starts at 9:00 a.m. (If False, correct the statement)

4. Subjective & Competency Bank (Higher-Order Thinking)

Short-Answer Questions (Write each question strictly on a single line)

Q94. Why does Maya reluctantly agree to Ava’s proposal to fly the spaceship to Pluto despite her parents’ strict prohibition?

Q95. How does Ava use the alignment of Orion’s Belt to detect the presence of the nearby black hole?

Q96. Explain the scientific difference in how a star the size of our sun dies compared to a star much larger than our sun.

Q97. Why is the event horizon of a black hole formally defined as the absolute “point of no return”?

Q98. How does the ship’s computer manage to pull the ship away from the black hole after holding at 1 kilometer?

Q99. Explain why the children return to a freezing winter on Earth after experiencing what felt like only a few hours in space.

Q100. Why did Subrahmanyam Chandrasekhar receive the Nobel Prize, and what is the scientific significance of his discovery?

Q101. Explain why it is impossible to make black holes smaller, and discuss what happens when objects are thrown into them.

Q102. How do you physically pronounce words starting with the /w/ sound differently from words starting with the /v/ sound?

Q103. Why are human bodies unable to withstand the actual physical forces required to travel to Pluto and back in a single day?

Scenario-Based / Competency Questions

Q104. Imagine you are a space safety investigator writing an incident report on Maya’s unauthorized flight. Using details from the text, identify the rules violated, the risks taken, the exact mechanical system fired to escape, and how they survived.

Q105. A student writes a paragraph: “Last week, I runned to the library. I buyed a book about space. I holded it tightly as I readed about stars.” Identify all the grammatical errors, explain why they are incorrect based on the rules of simple past tense, and rewrite the paragraph correctly.

Q106. Examine the “Word Wonder” rules. A student claims that “bookshelf” and “tablecloth” are compound words, but “sunheat” and “postletter” are also valid because they join two nouns. Based on the exercises in the text, evaluate the student’s claim and explain which of these combinations are invalid and why.

Q107. You are tasked with designing a promotional poster for a new Science Club in your school based on the layout of the Puducherry Planetarium poster. Describe the critical informational elements you must include (such as dates, times, special guests, and event details) to make it highly informative for students.

Q108. Analyze the “chilly winds” ending. If you were a counselor helping Maya, Ava, and Reyhaan face Maya’s parents, how would you use the science of “time dilation” near a black hole to explain why they failed to return before the weekend ended?

Long-Answer / Essay Questions

Q109. Detail the entire chronological progression of the story “There’s a Hole in My Galaxy”, starting from the children’s departure on Earth to the climax at the event horizon, their escape, and the final temporal twist upon landing.

Q110. Compare and contrast the physical characteristics, sizes, masses, and origin processes of stellar-mass black holes, supermassive black holes, and micro-black holes as explained in the text.

Q111. Construct an exhaustive grammatical reference guide on the simple present tense and simple past tense. Detail their structural formulas, use cases, regular versus irregular past verb forms, and spelling shifts, using only examples from the chapter.

Q112. Analyze how character knowledge and personal traits drive the plot in “There’s a Hole in My Galaxy”. Contrast Ava’s passion and impulsivity with Maya’s caution and technical execution, and explain how their collaborative efforts saved them from disaster.

Q113. Break down the realistic scientific limitations of space travel outlined in the chapter’s final page. Contrast the “fantasy” elements of the story (speed, human tolerance to acceleration forces, and exaggerated time differences) with actual physical laws.

5. The Master Answer Key & Marking Rubric

Mid-Chapter extraction

  • Q1 Answer: A satellite is an object that orbits (goes around and around) a larger object in space (e.g., the moon is a satellite of the Earth). Orbits actually exist as continuous pathways in space, but on diagrams and charts, they are shown as dotted lines. [Passage 2]
  • Q2 Answer: India launched ‘Chandrayaan-3’ to attempt a soft landing on the moon’s surface. [Passage 2]
  • Q3 Answer: The sun gets its energy by burning hydrogen to produce helium. In about five billion years, all its hydrogen will be used up, and the sun will die, becoming a white dwarf. In contrast, stars much larger than the sun collapse into themselves and become black holes. [Passage 4]
  • Q4 Answer: Black holes less than 3 km in radius are not formed from collapsing stars. Instead, these tiny black holes may have been produced during the early universe and have stuck around. [Passage 11]
  • Q5 Answer: First, a rocket would have to travel at a quarter of the speed of light (75,000 km/s) to make it to Pluto and back in a day. Second, passengers accelerating to this speed over a couple of hours would experience a force about a thousand times their weight. Third, hovering near a black hole would subject them to even greater forces. Human bodies cannot withstand these massive forces. [Passage 11]
  • Q6 Answer: Ananya Dasgupta was associated with: The Telegraph (Kolkata) as a journalist; the Tata Institute of Fundamental Research Archives (Mumbai) as an editor handling the Oral History Project; and the International Centre for Theoretical Sciences (Bengaluru) as an editorial consultant. She co-authored A Masterful Spirit: Homi Jehangir Bhabha 1909-1966. [Passage 12]
  • Q7 Answer: The special guests are Dr K Parthasarathy and Dr M Kannagi. The Q&A sessions are scheduled at 11:30 a.m., 2:30 p.m., and 5:30 p.m. [Passage 22, 23]
  • Q8 Answer: For the /w/ sound, you must make your mouth round. For the /v/ sound, you must bite your lower lip. The practicing tongue twister for the /v/ sound is: “She had vicious wishes that the worst would happen to the versed men; these vicious wishes made the versed men very wary that the worst could happen.” or “We went to Wally’s volleyball event… Wally would win the volley versus Vinny.” [Passage 19, 20]

Textbook Exercise Integration

  • Q9 Answer: 2563. [Passage 2]
  • Q10 Answer: Ava. She persuaded Maya by pointing out that Maya’s parents were out for the weekend, that Pluto is “not that far,” and promising that they would be back before her parents returned. [Passage 2, 3]
  • Q11 Answer: It becomes a white dwarf when its hydrogen fuel runs out. [Passage 4]
  • Q12 Answer: Because they knew that if they reached the black hole, they would be pulled in forever, sucked into the center, and torn into nothing. [Passage 5, 8]
  • Q13 Answer: It is sucked into the center of the black hole and torn into nothing. [Passage 8]
  • Q14 Answer: The rocket ship owned by Maya’s family. Inside it are Maya, Ava, and Reyhaan. [Passage 2, 3]
  • Q15 Answer: A black hole. [Passage 4]
  • Q160 Answer: Pluto. [Passage 2]
  • Q17 Answer: Maya and Reyhaan’s backyard. [Passage 10]
  • Q18 Answer: Winter. [Passage 10]
  • Q19 Answer: They felt they were away from home for just a few hours, though on Earth, six months had actually passed. [Passage 10, 11]
  • Q20 Rubric (Think and Answer):
    • Full Marks: Student must describe feeling terror, fear, and panic due to the immense gravitational pull, countdown warnings, and realization that they are near the “point of no return.” Must include key terms like “fear,” “shaking,” and “helplessness.” [Passage 5, 6]
  • Q21 Rubric (Think and Answer):
    • Full Marks: Paragraph must describe stepping out into a completely altered world where years have passed on Earth but only minutes felt for the student. Must include elements of shock, seeing aged friends/family, or changed environments. [Passage 10, 11, 15]
  • Q22 Answer: D) gum (Correct compound words: toothbrush, toothpick, toothpaste). [Passage 16]
  • Q23 Answer: C) heat (Correct compound words: sunlight, sunrise, sunshine). [Passage 16]
  • Q24 Answer: A) leaf (Correct compound words: bookshop, bookmark, bookshelf). [Passage 16]
  • Q25 Answer: B) fork (Correct compound words: tabletop, tablecloth, tablespoon). [Passage 16]
  • Q26 Answer: C) letter (Correct compound words: postman, postbox, postscript). [Passage 16]
  • Q27 Answer: uses [Passage 17]
  • Q28 Answer: give [Passage 17]
  • Q29 Answer: makes [Passage 17]
  • Q30 Answer: tidies [Passage 17]
  • Q31 Answer: obeys [Passage 17]
  • Q32 Answer: does [Passage 18]
  • Q33 Answer: sold [Passage 18]
  • Q34 Answer: heard [Passage 19]
  • Q35 Answer: lost [Passage 19]
  • Q36 Answer: met [Passage 19]
  • Q37 Answer: wrote [Passage 19]
  • Q38 Answer: bought [Passage 19]
  • Q39 Answer: caught [Passage 19]
  • Q40 Answer: got [Passage 19]
  • Q41 Answer: C) pollution [Passage 20]
  • Q42 Answer: A) red flower [Passage 21]
  • Q43 Answer: B) the moon [Passage 21]
  • Q44 Answer: B) spaceship [Passage 21]
  • Q45 Answer: A) a warning for the planet [Passage 21]
  • Q46 Rubric (Composition):
    • Full Marks: Name two logical public places (e.g., schools, library, community centers) and explain that posters are displayed in public places to give maximum information to target audiences like children and students. [Passage 22, 23]

Exhaustive Objective Bank

MCQs
  • Q47 Answer: B) 2563 [Passage 2]
  • Q48 Answer: C) Ananya Dasgupta [Passage 12]
  • Q49 Answer: B) Subrahmanyam Chandrasekhar [Passage 11]
  • Q50 Answer: B) It is twice as heavy as the Sun [Passage 4]
  • Q51 Answer: B) Orion’s Belt [Passage 4]
  • Q52 Answer: C) 5 kilometers [Passage 4]
  • Q53 Answer: A) 500 meters [Passage 6]
  • Q54 Answer: C) One billion [Passage 8, 9]
  • Q55 Answer: B) Right in the middle of our galaxy [Passage 9]
  • Q56 Answer: C) Winter [Passage 10]
  • Q57 Answer: C) Six months [Passage 11]
  • Q58 Answer: C) Event horizon [Passage 8]
  • Q59 Answer: B) Black holes [Passage 11]
  • Q60 Answer: A) 3 kilometers [Passage 11]
  • Q61 Answer: B) A measure of how difficult it is to accelerate (move) an object [Passage 11]
  • Q62 Answer: C) About 30 million or billion kilometers [Passage 9]
  • Q63 Answer: C) One quarter [Passage 11]
  • Q64 Answer: B) 75,000 km/s [Passage 11]
  • Q65 Answer: C) 1,000 times [Passage 11]
  • Q66 Answer: B) Tata Institute of Fundamental Research [Passage 12]
  • Q67 Answer: A) Dr K Parthasarathy and Dr M Kannagi [Passage 22]
  • Q68 Answer: B) Every 45 minutes [Passage 23]
Fill-in-the-Blanks
  • Q69 Answer: hydrogen [Passage 4]
  • Q70 Answer: white dwarf [Passage 4]
  • Q71 Answer: lens [Passage 4]
  • Q72 Answer: nothing [Passage 7]
  • Q73 Answer: event horizon [Passage 8]
  • Q74 Answer: thousand [Passage 8]
  • Q75 Answer: six [Passage 11]
  • Q76 Answer: three [Passage 11]
  • Q77 Answer: different [Passage 15]
  • Q78 Answer: space [Passage 15]
  • Q79 Answer: regularly [Passage 17]
  • Q80 Answer: simple past [Passage 18]
  • Q81 Answer: round [Passage 19]
  • Q82 Answer: bite [Passage 19]
  • Q83 Answer: children, students [Passage 22]
True/False Questions
  • Q84 Answer: False. (Correction: Orbits don’t actually look like dotted lines in space; they are shown as dotted lines only on charts and diagrams). [Passage 2]
  • Q85 Answer: True. [Passage 2, 3]
  • Q86 Answer: False. (Correction: The black hole was twice as heavy as the sun). [Passage 4]
  • Q87 Answer: False. (Correction: The ship was holding at 500 meters away from the event horizon when it was running at maximum power). [Passage 6]
  • Q88 Answer: False. (Correction: Throwing things into a black hole makes it bigger). [Passage 11]
  • Q89 Answer: False. (Correction: Even near a black hole, time behaves funny and runs at a different, much slower rate). [Passage 7, 11]
  • Q90 Answer: True. [Passage 11]
  • Q91 Answer: True. [Passage 15]
  • Q92 Answer: False. (Correction: The simple present tense form is “tidies”). [Passage 17]
  • Q93 Answer: True. [Passage 23]

Subjective & Competency Bank

Short-Answer Questions
  • Q94 Rubric:
    • Passage Link: [Passage 2, 3]
    • Key Points for Full Marks:
      • Mention that Ava is Maya’s best friend and deeply loves space/astronomy.
      • Cite Ava’s arguments: Maya’s parents are away for the weekend, Pluto is not that far, and they will be back before the parents return.
  • Q95 Rubric:
    • Passage Link: [Passage 4]
    • Key Points for Full Marks:
      • Identify that the stars in Orion’s Belt are no longer in a straight line.
      • Explain that the gravitational field of the black hole is bending the light of the stars near it like a lens.
  • Q96 Rubric:
    • Passage Link: [Passage 4, 7]
    • Key Points for Full Marks:
      • A star the size of the sun dies and becomes a white dwarf.
      • A star larger than the sun dies, collapses into itself, squeezes into nothing, and becomes a black hole.
  • Q97 Rubric:
    • Passage Link: [Passage 8, 11]
    • Key Points for Full Marks:
      • Define event horizon as the boundary of the region of no return.
      • State that anything—even light—that crosses this boundary can never escape and is lost forever.
  • Q98 Rubric:
    • Passage Link: [Passage 5, 6]
    • Key Points for Full Marks:
      • Maya commands “FULL POWER, DOUBLE POWER” and “MAXIMUM POWER”.
      • Mention the activation of “EMERGENCY BOOSTERS”.
      • Reference the “super-new-generation rocket’s” immense power working against the gravitational force.
  • Q99 Rubric:
    • Passage Link: [Passage 10, 11]
    • Key Points for Full Marks:
      • State the scientific rule: “Time runs at a different (slower) rate near the black hole.”
      • Explain that six months passed on Earth while they spent only a few hours fighting the black hole.
  • Q100 Rubric:
    • Passage Link: [Passage 11]
    • Key Points for Full Marks:
      • State he understood that big stars collapse into black holes.
      • Mention he won the Nobel Prize for this discovery.
  • Q101 Rubric:
    • Passage Link: [Passage 11]
    • Key Points for Full Marks:
      • Explain that they are the densest objects in the universe.
      • State that throwing things into a black hole only adds mass and makes it bigger, while making it smaller is almost impossible.
  • Q102 Rubric:
    • Passage Link: [Passage 19]
    • Key Points for Full Marks:
      • For the /w/ sound, the mouth must be made round.
      • For the /v/ sound, the speaker must bite their lower lip.
  • Q103 Rubric:
    • Passage Link: [Passage 11]
    • Key Points for Full Marks:
      • State that accelerating to a quarter of the speed of light in a couple of hours generates a force 1,000 times the passenger’s weight.
      • State that hovering near a black hole creates even greater forces, which human bodies cannot physically withstand.
Scenario-Based / Competency Questions
  • Q104 Rubric:
    • Passage Link: [Passage 2, 3, 5, 6]
    • Key Points for Full Marks:
      • Violations: Piloting without a grown-up/supervision.
      • Risks: Flying near highly dangerous gravity wells (black holes) and hitting the event horizon.
      • Systems: Computer alerts, star observation (Orion’s Belt distortion), double-power commands, and “emergency boosters.”
  • Q105 Rubric:
    • Passage Link: [Passage 18, 19]
    • Key Points for Full Marks:
      • Error Analysis: Identify “runned” (should be “ran”), “buyed” (should be “bought”), “holded” (should be “held” / “holding”), “readed” (should be “read”).
      • Explanation: Explain that regular past tense uses “-ed”, but irregular verbs undergo a spelling change.
      • Correction: “Last week, I ran to the library. I bought a book about space. I held it tightly as I read about stars.”
  • Q106 Rubric:
    • Passage Link: [Passage 15, 16]
    • Key Points for Full Marks:
      • Explain that compound words must be valid linguistic conventions listed in standard use.
      • Identify “bookshelf” and “tablecloth” as valid compound words.
      • State that “sunheat” and “postletter” are incorrect because they fail the correct combinations (as verified in exercise table 16: “sun” combines with light/rise/shine, not heat; “post” combines with man/box/script, not letter).
  • Q107 Rubric:
    • Passage Link: [Passage 22, 23]
    • Key Points for Full Marks:
      • Must list at least 5 critical components: Event Title, Date, Timings, Targeted Audience (e.g., free shows for children/students), Core Educational Activities/Topics, Guest Speakers, and Scheduled Session Timelines (e.g., Q&A or specific shows).
  • Q108 Rubric:
    • Passage Link: [Passage 10, 11]
    • Key Points for Full Marks:
      • Explain that time dilation is a real physical consequence of strong gravitational fields.
      • State that near a black hole, time runs significantly slower than on Earth.
      • Explain that their “few hours” in the gravity well naturally translated to 6 months of Earth time, proving they did not intentionally run away or dilly-dally.
Long-Answer / Essay Questions
  • Q109 Rubric:
    • Passage Link: [Passage 2, 3, 4, 5, 6, 7, 8, 10, 11]
    • Key Points for Full Marks:
      • Departure: Set in 2563. Ava persuades Maya to fly the family rocket ship while parents are away. Reyhaan tags along.
      • Encounter: En route to Pluto, computer beeps. Orion’s Belt is distorted. Ava realizes they are 5 km from a black hole’s event horizon.
      • Climax: Maya activates full power and emergency boosters. Countdown ticks down to 500 meters from the point of no return. A silent, motionless tug-of-war ensues before they pull away.
      • Resolution: Landing in their backyard, they step out into freezing winter. Six months have passed on Earth due to time dilation.
  • Q110 Rubric:
    • Passage Link: [Passage 4, 7, 9, 11]
    • Key Points for Full Marks:
      • Stellar-Mass Black Holes: Formed from the collapse of a star larger than our sun; can be twice as heavy as the sun or have a similar mass; minimum of 3 km in radius.
      • Supermassive Black Holes: Located in the middle of galaxies; have a mass of more than a million suns.
      • Micro Black Holes: Under 3 km in radius; not formed from collapsing stars; believed to have been formed during the early universe.
  • Q111 Rubric:
    • Passage Link: [Passage 16, 17, 18, 19]
    • Key Points for Full Marks:
      • Simple Present Tense: Structural rule for singular subject (verb + s/es) vs. plural subject (base verb). Cite examples like “uses,” “give,” “makes,” “tidies” (noting spelling shift from -y to -ies), “obeys,” “does.”
      • Simple Past Tense: Explain that regular past tense verbs add “-ed” (e.g., “delayed”, “launched”) whereas irregular verbs have unique past forms. Cite examples: “sold,” “heard,” “lost,” “met,” “wrote,” “bought,” “caught,” “got.”
  • Q112 Rubric:
    • Passage Link: [Passage 2, 3, 4, 5, 6, 7, 8]
    • Key Points for Full Marks:
      • Ava: Passionate, space-obsessed, impulsive. Her curiosity pushes them to take the ship. However, her scientific knowledge is what identifies the black hole, event horizon, and light distortion, saving them from cross-horizon doom.
      • Maya: Cautious, rule-abiding, but yields to peer pressure. When danger strikes, she is the active pilot, executing critical rescue commands, doubling engine power, and firing boosters.
      • Reyhaan: Naturally curious, acting as the audience’s surrogate, asking essential questions about the sun’s death and black hole mechanics, forcing Ava to clarify key survival facts.
  • Q113 Rubric:
    • Passage Link: [Passage 11]
    • Key Points for Full Marks:
      • Required Speed: To visit Pluto and return in one day requires traveling at 75,000 km/s (one-quarter of the speed of light).
      • Acceleration Forces: Speeding up to 75,000 km/s over several hours creates an acceleration force 1,000 times the passengers’ weight, which human bodies cannot survive.
      • Black Hole Proximity: Staying or hovering near a black hole exerts even greater gravitational forces, which would destroy human tissues.
      • Narrative License: The author acknowledges exaggerating the time difference on Earth for dramatic effect, and refers to the children’s trip as a creative “fantasy.”

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