NCERT Solutions Class 7 English An Alien Hand Chapter 7 and Notes (Free PDF): An Alien Hand

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NCERT Solutions Class 7 English Chapter 7

In NCERT Solutions Class 7 English An Alien Hand Chapter 7 we have provided a summary, word meanings, and answers to questions in the chapter. The summary will introduce you to the characters and walk you through the story ‘An Alien Hand’. Thereafter, you will come across word meanings in this last chapter of the Class 7 English supplementary book. Finally, you will get answers to questions in Comprehension Check Part I, II, and III, and Exercise sections in the chapter. Let’s proceed!!

Download NCERT Solutions Class 7 English An Alien Hand Chapter 7 Important Questions and Answers PDF

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Chapter 1 Chapter 2Chapter 3
Chapter 4Chapter 5Chapter 6
Chapter 7

Summary of NCERT Class 7 English An Alien Hand Chapter 7: An Alien Hand

“An Alien Hand” by Jayant Narlikar is an intriguing story that follows Tilloo, a young boy, as he embarks on an adventurous journey to uncover the mysteries behind his father’s daily excursions through an underground passage. Tilloo’s curiosity and desire to explore the forbidden route lead him to use his father’s security card to access the underground passage. Little does he know that this passage connects the underground habitat, where people live due to environmental changes, to the surface of the planet.

Tilloo’s father, who works on the surface, reveals the challenging conditions he faces daily. Equipped with a special suit and oxygen reservoir, he explains the necessity of his role in maintaining machines powered by solar energy. The story introduces the concept of a world forced to live underground due to changes in the environment, emphasizing the reliance on technology for survival.

The plot takes an unexpected turn when two alien spacecraft approach the planet. The Central Committee debates how to respond, with opinions ranging from defensive measures to passive observation. The decision to avoid revealing their existence through non-interference sets the stage for an intriguing encounter.

Tilloo’s opportunity to witness the alien spacecraft in the Control Room adds excitement to the narrative. However, his curiosity gets the better of him, leading to an unintended consequence. In a moment of fascination, Tilloo interferes with the alien machinery, causing a malfunction similar to the Viking Mission on Mars mentioned in the story.

The parallel with the real-world Viking Mission adds depth to the narrative, connecting the fictional story to actual space exploration endeavours. The Viking Mission’s goal of finding signs of life on Mars and the challenges faced by scientists reflect the curiosity and uncertainties inherent in space exploration.

In conclusion, “An Alien Hand” masterfully weaves together elements of science fiction, adventure, and human curiosity. The story serves as a captivating exploration of the consequences of meddling with the unknown and the delicate balance between observation and interference in the face of extraterrestrial encounters.

Source: Magnet Brains

Important Word Meanings in NCERT Class 7 English An Alien Hand Chapter 7: An Alien Hand

Here are the relevant word meanings in NCERT Class 7 English An Alien Hand Chapter 7:

  • Escorted: Accompanied
  • Siesta: Short afternoon nap
  • Detected: Discovered
  • Habitat: Home 
  • Briefed: Informed about something

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Download NCERT Solutions Class 7 English An Alien Hand Chapter 7 Important Questions and Answers PDF

Chapter 1 Chapter 2Chapter 3
Chapter 4Chapter 5Chapter 6
Chapter 7

NCERT Solutions Class 7 English An Alien Hand Chapter 7: An Alien Hand

Finally, we are here at the most important part of the blog i.e. NCERT Solutions Class 7 English An Alien Hand Chapter 7: An Alien Hand. Let’s have a look!!

Comprehension Check I

Q1. How does Tilloo manage to find his way to the ‘forbidden passage’?

Ans: One day, Tilloo found his way to the ‘forbidden passage’ when his father was sleeping during the afternoon. He managed to reach the passage using his father’s security card.

Q2. What did Tilloo hope to see once he emerged from his underground home?

Ans: Tilloo wished that he might see the stars and sun if he emerged from the underground home during nighttime and daytime, respectively.

Q3. Why did Tilloo’s father advise him not to try to reach the surface of the planet?

Ans: Tilloo’s father advised him against reaching the surface of the planet because the surface was surrounded by extremely thin air making it difficult to breathe. Also, the surface had a low temperature, which would be unbearable for Tilloo.

Q4. What changes had occurred, that forced people to live in underground homes?

Ans: The sun turned very cold and unfriendly. Birds disappeared, and later, animals and fish also vanished. The air became thinner, and the temperature dropped a lot. Because of these changes, people had to start living in homes beneath the ground.

Comprehension Check II

Q1. Why was everyone in the Control Room greatly excited?

Ans: Everyone in the Control Room was thrilled about the two spacecraft approaching their planet. 

Q2. Was the spacecraft manned or unmanned? How do you know it?

Ans: According to the Central Bureau, it was an unmanned spacecraft. We know it because the spacecraft only had instruments and nothing else.

Q3. What did Number One and Number Two suggest should be done about the alien spacecraft?

Ans: Number One advised that they should not obstruct the spacecraft landing. He suggested this because he believed that it would be easy for them to make the spacecraft ineffective if it landed on its own.

Comprehension Check III

Q1. What do you think the mechanical hand was trying to do?

Ans: The mechanical hand was attempting to collect soil samples of Mars to analyse whether life was possible on the planet.

Q2. Tilloo pressed the red button and “the damage was done”. What was the damage?

Ans: The damage here refers to the stopping of the mechanical hand, which occurred after Tilloo pressed the red button. 

Q3. Where had the spacecraft come from?

Ans: The spacecraft had arrived from Earth.

Q4. On which planet do Tilloo and his parents live?

Ans: Tilloo and his parents lived on the planet Mars. They lived underground on this planet.


Q1. 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?

Ans: The challenges of this kind of life would include not having fresh air, missing the presence of stars, the sun, and the moon in the sky, having no experience of rain, winter, or summer, and the absence of animals, plants, and a natural environment. It might feel dull and artificial.

However, the positive aspect could be having a controlled temperature and air.

Q2. What, if anything, might drive mankind to make their homes underground?

Ans: Unbearable temperatures and worse air quality might drive mankind to their homes underground.

Q3. 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?

Ans: I believe there could be life on other planets. Scientists are actively researching and exploring to find evidence of life beyond Earth. Space scientists from different countries are working together to investigate this possibility, sending spacecraft to the moon and Mars in their quest for answers.

If life does exist on other planets, it would likely be very different from us. This is because they would have adapted to unique environmental conditions that are distinct from what we experience on Earth. The diversity of life forms on other planets, if they exist, would be shaped by their specific surroundings and circumstances.

Chapter 1: Three Questions; Chapter 1 Poem: The Squirrel
Chapter 2: A Gift of Chappals; Chapter 2 Poem: The Rebel
Chapter 3: Gopal and the Hilsa-Fish; Chapter 3 Poem: The Shed
Chapter 4: The Ashes that Made Trees Bloom; Chapter 4 Poem: Chivvy
Chapter 5: Quality; Chapter 5 Poem: Trees
Chapter 6: Expert Detectives; Chapter 6 Poem: Mystery of the Talking Fan
Chapter 7: The Invention of Vita-Wonk; Chapter 7 Poem: Dad and the Cat and the Tree
Chapter 8: A Homage to Our Brave Soldiers; Chapter 8 Poem: Meadow Surprises

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Q.1. Who is the author of NCERT Class 7 English Chapter 7 “An Alien Hand”

Ans: The author of the chapter “An Alien Hand” is Jayant Narlikar.

Q.2. What is the full form of NASA?

Ans: NASA stands for National Aeronautics and Space Administration.

Q.3. What is the Viking Mission to Mars?

Ans: NASA’s Viking Mission to Mars included two spacecraft, Viking 1 and Viking 2, each with an orbiter and a lander. The main goals of the mission were to capture images, collect samples of the Martian surface and soil, and look for signs of life. Viking 1 was launched on 20 August 1975 and reached Mars on 19 June 1976. Whereas, Viking 2 was launched on 9 September 1975, and entered Mars’ orbit on 7 August 1976.

Related Reads:

CBSE Notes Class 7 History
CBSE Notes Class 7 Geography
CBSE NCERT Maths Class 7 Solutions and Notes
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