🚀 Lesson 5: India Makes Space History with Chandrayaan-3 — Complete Solutions
This lesson covers the historic achievement of India’s third lunar mission, Chandrayaan-3, which successfully landed near the Moon’s South Pole on August 23, 2023.
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📘 Section 1: Textbook Activity Solutions
1. Comprehension Questions
a) What was the historic moment mentioned in the passage?
Answer: The historic moment was the successful soft landing of Chandrayaan-3 on the lunar South Pole on August 23, 2023.
b) Why did the scientists decide to explore the South Pole region?
Answer: This region is largely unexplored and is believed to hold a significant amount of water ice.
c) What could be the uses of water ice?
Answer: Scientists hope the water ice could be used for drinking water, producing oxygen, and making rocket fuel.
d) Why is the Moon’s South Pole so special?
Answer: It is special because it remained unexplored by past missions and contains mysteries that can help us learn more about our solar system.
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4. Ordering the Events
The correct sequence of the mission is:
1. (a) Chandrayaan-3 was planned to land on the South Pole.
2. (b) Launch from Satish Dhawan Space Centre.
3. (c) Soft landing on August 23, 2023.
4. (d) Vikram and Pragyan explored the surface.
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5. b) Quiz Sample Answers
i. Name of the rover: (b) Pragyan
ii. Number of wheels on Pragyan: (c) Six
iii. What Pragyan does: (b) Collects data
iv. Landing site: (b) South Pole
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🧠 Section 2: Grammar & Vocabulary
6. c) & f) Future Tense: “Will” vs. “Going to”
“Going to” is used when there are signs something is about to happen or if it was already planned.
“Will” is used for decisions made on the spot or predictions.
Correction of wrong sentences:
1. Incorrect: She is going to open the door because someone knocked.
Correct: She will open the door… (Decision made on the spot).
2. Incorrect: Look! He will fall off the ladder!
Correct: Look! He is going to fall… (Based on what we see now).
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7. c) Replacing Synonyms & Antonyms
a) The goal was to explore (antonym of ignore) the unknown parts of the Moon.
b) The Moon still holds many mysteries (synonym of puzzles).
c) The rover landed on the South Pole region (synonym of area).
d) The Indian Space Research Organisation scientist remotely operated (antonym of stopped) the lunar rover.
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9. c) Cause-Effect Connectors
1. It rained heavily → The streets were flooded.
2. The rocket launched well → The scientists celebrated.
3. He worked all night → He was tired.
4. The sky looked dark → I carried an umbrella.
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15. Articles (a/an/the)
India sent a rocket to the Moon.
The rover moved slowly on the surface.
Vikram is the lander of Chandrayaan-3.
Riya wants to become an astronaut one day.
I saw an interesting space video online.
The Moon looked bright in the night sky.
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👨🚀 Section 3: Dr. Vikram Sarabhai
Title: The Father of India’s Space Programme.
Key Facts:
Born in 1919 in Ahmedabad.
Started the Physical Research Laboratory (PRL) in 1947.
Led the establishment of ISRO in 1969.
Believed space science should be used to improve people’s lives.
