Important Questions Class 6 Social Science The Earth Our Habitat Chapter 1

Important Questions Class 6 Social Science the Earth Our Habitat Chapter 1 – the Earth in the Solar System

Geography is an exciting subject. It is a study of the earth’s surface and a quest to answer why there is variation in different physical and human phenomena and the relation between them. 

Chapter 1 of Class 6 Geography describes the universe, solar system, the earth and other celestial bodies. This chapter builds ideas among young students about the earth’s position in our universe. It also develops curiosity among students regarding the objects in the sky. Though the concepts are pretty complex, the NCERT textbook has easily illustrated these with pictures, definitions, and examples. 

Extramarks is one of the leading educational online platforms that provide guidance and support to students of all classes and subjects. It believes in providing the best study materials through a repository of resources available at Extramarks to maximise the potential of students and get excellent results. . Our subject matter experts understand the importance of practising questions regularly and take their role seriously to provide authentic, concise and up to date study materials while adhering to the latest CBSE guidelines. For this purpose, they have developed the Important Questions Class 6 Social Science the Earth Our Habitat Chapter 1 with solutions. The experts have collated these questions from various sources like NCERT textbooks, CBSE past year questions, CBSE sample papers and important reference books. Social Science the Earth Our Habitat Class 6 Chapter 1 Important Questions will help students score better during their exams.

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Important Questions Class 6 Social Science the Earth Our Habitat Chapter 1- With Solutions

The subject matter experts of Geography have prepared this question-bank covering the important topics of this chapter. They have included all the possible questions and provided to-the-point answers. If one solves these questions, he/she will be more confident. Students need to sincerely follow these Important Questions Class 6 Social Science the Earth Our Habitat Chapter 1 they will understand every concept and can answer any question easily. They will boost their performance and get an edge over their peers.

Question 1. The planet known as the “Earth’s Twin” is

(a) Jupiter 

(b) Saturn

(c) Venus

Answer 1: (c) Venus

Explanation: Earth and Venus are almost identical in size, structure and mass. So, Venus is often called the “Earth’s Twin”.

Question 2. The name of our galaxy is

(a) Patal Ganga

(b) Milky Way

(c) Andromeda

Answer 2: (b) Milky Way

Explanation: Billions of stars, planets, clouds of gases and dust create a galaxy. The universe is built of millions of galaxies. Our solar system belongs to the Milky Way galaxy. So the correct answer is option (b).

Question 3. Asteroids are found between the orbits of

(a) Saturn and Jupiter 

(b) Mars and Jupiter 

(c) The Earth and Mars

Answer 3: (b) Mars and Jupiter

Explanation: Asteroids are small celestial bodies which revolve around the sun. In our solar system, they are found between the orbits of Mars and Jupiter. Therefore, the correct answer is option (b).

Question 4. Which of the following is a dwarf planet?

(a) Neptune

(b) Mercury

(c) Pluto

Answer 4: (c) Pluto

Explanation: In a meeting of the International Astronomical Union in 2006, Pluto was declared a dwarf planet. Therefore, the correct option is (c).

Question 5. ________ is the closest celestial body to our earth.

Answer 5: Moon is the closest celestial body to our earth.

Question 6. A group of ________ forming various patterns is called a ________.

Answer 6: A group of stars forming various patterns is called a constellation.

Question 7. The shape of the earth is _____.

Answer 7: The shape of the earth is geoid.

Question 8. State True or False-

Life can be found on all the planets of the solar system.

Answer 8: False

Explanation: Earth is the only planet in the solar family where conditions are favourable to sustain life. So, the earth is probably the only planet where life is present. 

Question 9. State True or false-

Neil Armstrong was the first man to step on the moon’s surface.

Answer 9: True

Explanation: On 20th July 1969, Neil Armstrong, an American astronomer, created history because he became the first human to walk on the surface of the moon. 

Question 10. Which planets do have rings around them?

Answer 10: Jupiter, Saturn and Neptune are the planets with rings around them.

Question 11. What is the Universe?

Answer 11: The universe is a  collection of millions of galaxies. On the other hand, billions of stars, gas and dust clouds form a galaxy. Every celestial body exists in the universe. Scientists are still trying to understand how big the universe is and discovering new facts about it.

Question 12. Why is the earth called a blue planet?

Answer 12: Land covers one-third of the earth’s surface, while oceans and seas cover the rest. Due to the dominance of water on the earth’s surface, the planet appears to be blue in outer space. For this reason, the earth is called a blue planet.

Question 13. What do you mean by asteroids?

Answer 13: Asteroids are tiny celestial bodies which move around the sun. In the solar system, these are found between the orbits of Mars and Jupiter. Scientists believe that asteroids are parts of planets, formed due to explosions.

Question 14. Why do we see only one side of the moon always?

Answer 14: Moon is the only satellite of the earth. The moon takes 27 days to orbit the earth. It also takes 27 days to complete one spin around itself. So, one side of the moon remains visible to us, and we  continue to see only one side of the moon. 

Question 15. What is Akash Ganga?

Answer 15: Akash Ganga is another name for the Milky Way galaxy in ancient times. The Milky Way appears to be a bright band of stars in the night sky. So in the ancient period, people imagined this to be a river of light flowing in the sky. So, they named it Akash, meaning sky and Ganga, meaning river.

Question 16. Name all the planets according to their distance from the sun.

Answer 16: There are eight planets in the solar system. The planets, according to their shortest to longest distance from the sun, are – Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.

Question 17. What is a satellite?

Answer 17: A satellite is a celestial body which moves around a planet just like a planet moves around a star. A planet can have more than one satellite, even no satellite. For example, the moon is the only satellite that moves around the earth, but Jupiter has almost 53 satellites.

Question 18. Who is an astronomer?

Answer 18: An astronomer is a person who studies celestial bodies as well as their movements. At present, astronomers are exploring space besides learning more about it.

Question 19. What do you know about Aryabhatta?

Answer 19: Aryabhatta was a pioneering mathematician from ancient India. He also had a great interest in space. He discovered that the planets and moon shine in the night sky due to the reflected light from the sun. 

Question 20. Why can we not see the moon or stars in the daytime?

Answer 20: The moon and the stars are still in the sky during the daytime. The sunlight is so bright that our eyes cannot see the stars’ blinking lights or the moon’s shining face. They only become visible after sunsets. 

Question 21. What are meteoroids?

Answer 21: Meteoroids are small parts of rocks that exist in space. They tend to fall on the earth’s surface when they come close to our planet. . In most cases, the meteoroids are burnt by the atmosphere’s friction. Large meteoroids are not entirely burnt and fall on the earth’s surface, creating large craters.

Question 22. What is meant by the ‘Solar System’?

Answer 22: ‘Solar System is formed by the sun, its planets, satellites and other celestial bodies. The sun remains at the centre, providing heat and light to all the planets. Thus, it plays the role of the head in this solar family. . Eight planets, namely Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune, and one dwarf planet- Pluto, are moving around the sun. Besides this system has asteroids, meteoroids, satellites and other celestial bodies. Solar family is another name for the solar system.

Question 23. What are artificial satellites? Can you name a few Indian artificial satellites?

Answer 23: Artificial satellites are man-made satellites designed by scientists. These are projected to space by rockets and placed in orbit around the earth. In space, they move around the earth just like its natural satellite – the moon. Some of these satellites gather information about the universe. Others help in the communication system, weather forecast etc. They help us largely by transmitting signals for radio and T.V., conducting research works and so on. 

IRS, INSAT, and EDUSAT are a few examples of Indian satellites. 

Question 24. How does a planet differ from a star?

Answer 24: The difference between a planet and a star is as follows-

Planet Star
Planet does not have its own source of heat and light. It gets light and heat from a star. Star has its own source of heat and light and radiates it to planets.
Planet moves around a star. Star remains still in space.
Planets appear to be still and dim light in the night sky. Stars appear to be blinking bright lights in the night sky.
Example- The earth is a planet. Example- The sun is a star.

Question 25. What do you know about the moon?

Answer 25: The moon is a satellite that moves around the earth. It is the only satellite of the earth. The moon’s diameter is only one-third of that of the earth, but still, it appears to be bigger in the night sky. It is because the moon is only 3,84,400 km away from the earth, being the closest celestial body to this planet. It takes almost 27 days to complete an orbit around the earth. The conditions on the moon are not suitable for life. Its surface has mountains, planes and depressions which cast shadows on its face. 

Question 26. Why is the earth called a unique planet?

Answer 26: The earth is a planet in the solar system. It is the third planet according to distance from the sun. Due to its orbital distance from the sun, its size and its composition, the earth has favourable conditions to nurture life. The temperature of the earth’s surface is not too hot or cold. The essential element for life- water covers almost two-thirds of the earth’s surface. The atmosphere has a sufficient amount of oxygen for living beings too. As a result, life originated only on the earth in the solar family. This is why the earth is called a unique planet.

Benefits of Solving Important Questions Class 6 Social Science the Earth Our Habitat Chapter 1 

The habit of solving questions always helps students to improve their knowledge and answer writing skills. The fundamental concepts discussed in this chapter are important l for higher studies as well. Students need to understand these concepts clearly so that they can explain the answers in exams. There are multiple benefits of learning these important questions. Some of them are: 

  • The Important Questions Class 6 Social Science the Earth Our Habitat Chapter 1 keep students’ needs in mind. Extramarks experts have written the answers after thorough research while adhering to the latest CBSE guidelines. The answers will help students to write to the point, concise answers in exams. This will not only increase their marks but also boost their confidence level.
  • In higher classes, students have to write long answer questions. So it is beneficial to practice answering long-type questions in lower classes. Extramarks team also has kept this point in mind. So, they have included several long answer questions in Chapter 1 Class 6 Social Science the Earth Our Habitat Important Questions with solutions. 
  • All the possible questions from this chapter have been covered and are complete in every way Questions are taken from in-text and end-text exercises of the chapter. Furthermore, extra care has been taken to ensure that no significant portion or any question is left untouched. This will prepare students for any question asked in the exam and stay ahead of the competition. We can assure you if you study Class 6 Social Science the Earth Our Habitat Chapter 1 Important Questions you can do exceedingly well in your exam.
  • These questions are from NCERT textbooks, important reference books and CBSE sample papers. Our experts have compiled questions from various sources so that students don’t have to search for questions from different books. Furthermore, our subject experts have reviewed the Important Questions Class 6 Social Science the Earth Our Habitat Chapter 1. Thus we have ensured the best study material for the students. 

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Q.1 Read the source given below and answer the questions:

Meteoroids are celestial objects of small size in the solar system. They may be rocky or metallic in structure. Meteoroids are significantly smaller than asteroids and can be of different sizes from a small grain to one-meter-wide objects. If celestial objects are smaller, they are termed micrometeoroids or space dust.

Meteoroids are generally fragments of comets, asteroids or debris ejected from large bodies such as the Moon or Mars.

When a meteoroid, comet, or asteroid enters the earth’s atmosphere, its friction with air produces heating of that object and causes a streak of light. The object seems glowing, and a trail is made by the glowing particles that it leaves. Such celestial are commonly called meteors and the event is called ‘shooting stars’.

When a series of meteors are observed seconds or minutes apart from the same fixed point in the night sky, it is called a meteor shower. A meteorite is the remains of such ones that survived during their passage through the atmosphere as a meteor and has impacted the ground.

The meteorite that fell around 65 million years ago largely impacted the earth and the life found here.  Many dinosaurs became extinct when a huge rock struck the earth. This meteorite made a large crater, caused a huge tsunami wave in the seas, and forest fires. The ash and dust rose high and turned day into night.

According to an estimate, about 25 million meteoroids, micrometeoroids, and other space debris enter Earth’s atmosphere each day.

1. What are meteoroids? (1)
2. According to the passage, what is the difference between a meteoroid and an asteroid?  (1)
3. What is the way to identify a meteor as per the passage?  (1)
4. Are meteorites different from meteoroids? How?  (1)
5. What caused the extinction of dinosaurs as per the passage?  (1)

Marks:5

Ans

1. Meteoroids are small celestial of rocky or metallic structures. They are found in the solar system.
2. Meteoroids are smaller than asteroids in terms of size.  A meteoroid can be grain-sized to one meter wide, whereas asteroids are significantly bigger.
3. A celestial object that successfully entered the atmosphere of the earth is known as a meteor.  A meteor can be identified by its glowing trail which is made by its friction by the air.
4. A celestial object when enters the earth?s orbit and falls on the ground, is called a meteorite. The felled object may not be a meteoroid necessarily. It may be an asteroid too. Thus, a meteorite and a meteoroid are not always the same.
5. A very big meteorite that fell on the earth around 65 million years ago caused the extinction of the dinosaurs. The tsunami it produced, the fire it caused, and the clouds of dust and ash it generated were the reasons for the extinction of dinosaurs.

Q.2 Match the items in List-I with those in List-II and select the correct answer from the given options-  

List- I List- II
a. Neptune 1. Shortest rotation period
b. Jupiter 2. Longest revolution period
c. Venus 3. Shortest revolution period
d. Mercury 4. Longest rotation period

a-4, b-1, c-3, d-2

a-2, b-3, c-4, d-1

a-2, b-1, c-4, d-3

a-4, b-3, c-1, d-2

Marks:1

Ans

  • Neptune – Longest revolution period
  • Jupiter – Shortest rotation period
  • Venus – Longest rotation period
  • Mercury – Shortest revolution period

Q.3 Read the source given below and answer the questions:

The earth is the third nearest planet to the sun. In size, it is the fifth-largest planet. It is slightly flattened at the poles. That is why its shape is described as a Geoid. Geoid means an earth-like shape. Conditions favourable to support life are probably found only on the earth. The earth is neither too hot nor too cold. It has water and air, which are very essential for our survival. The air has life-supporting gases like oxygen. Because of these reasons, the earth is a unique planet in the solar system. From outer space, the earth appears blue because two-thirds of its surface is covered by water. It is, therefore, called a blue planet.

1. What is the place of the earth in the solar system?  (1)
2. How is the shape of the earth different from a round-shaped ball?  (1)
3. Why is the earth called a unique planet in the passage?  (1)

Marks:12

Ans

1. The earth is:

  • The third nearest planet to the sun.
  • The fifth-largest planet in the solar system.

2.

  • The shape of the earth is geoid instead of round. It is somewhat flat from the poles.
  • A round ball is not flattened from the poles.

3. The earth is called a unique planet in the passage because:

  • It is neither too hot nor too warm.
  • Air and water are available here.
  • It has life-supporting gases like oxygen.

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FAQs (Frequently Asked Questions)

1. Which types of questions are asked from Class 6 Social Science The Earth Our Habitat Chapter 1?

Generally, three types of questions are asked in this chapter. These are multiple choice questions, fill in the blanks, and short-answer questions. Still, there are several long answer questions in the NCERT book exercise. So, our subject experts have also included a number of long answer questions in the Important Questions Class 6 Social Science the Earth Our Habitat Chapter 1.

2. Is Class 6 Social Science The Earth Our Habitat Chapter 1 tough?

The chapter includes important concepts like stars, planets, the solar system, galaxies, and the universe. But the NCERT textbook has easily illustrated these concepts with pictures, definitions and examples. If students read the book seriously, it won’t be hard for them to understand the fundamental concepts. . Students can follow the class notes and NCERT solutions provided by Extramarks to clarify their doubts. Furthermore, the Important Questions Class 6 Social Science the Earth Our Habitat Chapter 1 made by our experts can guide students to master this chapter.

 

3. What are stars and planets?

Stars are celestial bodies with their source of heat and light. They radiate this heat and light in space. Planets are heavenly bodies which move around stars. Planets don’t have heat or cannot emit light. They get light and heat from the stars around them. A star may or may not have planets. Stars are generally way bigger than planets. The sun is also a star with eight planets. Our earth is one such planet which moves around the sun.

4. How did stars help ancient people?

Stars helped ancient people to determine directions. For example, consider the polar star. It stays at the same position in the sky. It indicates the northern tip. Ancient people used to locate the north direction with the help of this star. This is why the pole star is also called the north star. Similarly, other stars are used to help understand specific directions.

5. How can Important Questions Class 6 Social Science the Earth Our Habitat Chapter 1 help students for exams?

One can find the important questions and answers in the Important Questions Class 6 Social Science the Earth Our Habitat Chapter 1 prepared by the in-house subject experts of Extramarks. Students get to know the types of questions generally picked from this chapter and prepare themselves thoroughly. . These questions and answers improve the answers help in memorising and writing skills of the students and boost their confidence.