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Solutions

Overview

Step-by-step NCERT solutions for An Alien Hand (Chapter 7, NCERT Class 7 English) — every question and answer worked out in full, not just the final result. You can also read the An Alien Hand textbook chapter.

Solved

What these solutions cover

All 14 questions in An Alien Hand are solved in the PDF. Here's what's inside, exercise by exercise:

Comprehension Check I (after Part 1)

  1. How does Tilloo manage to find his way to the 'forbidden passage'?
  2. What did Tilloo hope to see once he emerged from his underground home?
  3. Why did Tilloo's father advise him not to try to reach the surface of the planet?
  4. What changes had occurred, which forced people to live in underground homes?

Comprehension Check II (after Part 2)

  1. Why was everyone in the Control Room greatly excited?
  2. Was the spacecraft manned or unmanned? How do you know it?
  3. What did Number One and Number Two suggest should be done about the alien spacecraft?

Comprehension Check III (after Part 3)

  1. What do you think the mechanical hand was trying to do?
  2. Tilloo pressed the red button and "the damage was done". What was the damage?
  3. Where had the spacecraft come from?
  4. On which planet do Tilloo and his parents live?

Discuss

  1. If you had to live in a home like Tilloo's, what parts of life would you find most difficult? What compensations might there be?
  2. What, if anything, might drive mankind to make their homes underground?
  3. Do you think there is life on other planets? Can you guess what kind of people there may be on them? In what ways are they likely to be different from us?
Sample

Worked examples

3 questions from An Alien Hand, solved step by step.

Comprehension Check I (after Part 1)

How does Tilloo manage to find his way to the 'forbidden passage'?

Tilloo's father was taking a siesta (afternoon nap) at home instead of being at work.

Tilloo took advantage of this and stole his father's security card.

He then slipped away while evading his watchful mother and reached the forbidden passage.

At the metal door, he inserted the security card into the slot — just as he had seen his father do — and the door opened noiselessly, letting him in.

Answer: Tilloo steals his father's security card while his father is taking a siesta. He evades his mother's watch, goes to the forbidden passage, and uses the card to open the metal door, just as he had seen his father do.

Comprehension Check II (after Part 2)

Why was everyone in the Control Room greatly excited?

The big TV screen in the Control Room showed a dot moving against a clear background — it was not a star because it was changing its position.

The computer had calculated a trajectory showing this 'thing' was heading towards their planet.

The Supervisor explained that it appeared to be a spacecraft coming from outside their solar system — an unprecedented event since their own ancient space programme had confirmed they were 'alone' in the solar system.

The appearance of an alien spacecraft heading towards them was extraordinary and alarming news.

Answer: The Control Room's TV screen showed an unidentified object changing position and heading towards their planet. The computer identified it as a spacecraft — a shocking discovery, since their own ancient explorations had confirmed no other life existed in the solar system.

Comprehension Check III (after Part 3)

What do you think the mechanical hand was trying to do?

The mechanical hand emerged from the alien spacecraft and approached the surface of the planet.

It bent and touched the soil of the planet.

Based on the NASA press releases in the story, the mechanical hand was designed to dig out soil samples for examination — to test whether there was any sign of life on the planet.

This matches the real Viking Mission's purpose of collecting and examining Martian soil.

Answer: The mechanical hand was trying to collect soil samples from the planet's surface to examine them for signs of life. This is confirmed by the NASA press release in the story, which states it was designed to dig out Martian soil for examination.

All 14 questions in An Alien Hand are solved step by step in the Solutions PDF above.

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