CBSE Class 6 Geography The Earth In Our Solar System Worksheet

Earth- As member of Solar System

Question. What do you mean by the universe? Enlist the different forms of the universe.
Answer. The sun, the planets, the earth, the moon, stars, dust, gases etc. make universe.
1. Planets and satellites 2. Asteroids 3. Comets 4. Meteors and Meteorites are different bodies of the universe.

Question. What is a planet? Is our earth a planet? How?
Answer. The planets are the solid and gaseous bodies moving around the sun.
Yes, our Earth is a planet. Like other planets, it also gets light and heat from the Sun.

Question. What do you understand by Solar System?
Answer. The Sun, its planets and satellites form the Solar System. Sun is the centre of the Solar System.

Question. Enlist the distance of planets from the Sun. Also tell which planet is far away and which is nearest.
Answer. Hint- My Very Efficient Mother Just Served Us Nuts.
Sr. No. Name of Planet Distance from Sun in million Km
1 Mercury 58
2 Venus 108
3 Earth 150
4 Mars 227
5 Jupiter 778
6 Saturn 1427
7 Uranus 2870
8 Neptune 4496
Neptune is the farthest and Mercury is the nearest planet to the sun.

Question. Enlist according to the size of the planets.
Answer. Jupiter is the largest and Mercury is the smallest planet.
Hint- JSUN EVMM
Sr. No. Name of Planet Diameter in Km
1 Jupiter 142984
2 Saturn 120536
3 Uranus 51118
4 Neptune 49528
5 Earth 12756
6 Venus 12103
7 Mars 6786
8 Mercury 4878

Question. Which lets you know that tell us the shape and size of Earth?
Answer. If we look at the earth from the space we find that the earth is not round like a ball. It is flat on the poles. It is oblate spheroid.

Question. Write note on the following:-
Answer.
A. Planet- Planets are solid or gaseous bodies moving around the sun. They get light and heat from the Sun.
B. Meteors- Meteors are also called shooting stars. These are the scattered material in the Solar System which get fire when enter in the atmosphere of the earth.
C. Sphere- Sphere is a shape, round like a ball. The shape of our earth is spherical.
D. Equator- It is an imaginary line that divide the earth into two equal parts. It runs from East to West.
E. Tailed Star- The comet has a long tail of light. That is why it is called a Tailed Star.
F. Axle/ Axis- As we rotate the Globe, it rotates around its axle. Similarly, Earth rotates on its axis. It is an imaginary line.
G. Asteroids- Except planets, there are also small planets those revolve round the Sun. These are called Asteroids.
H. Lunar Eclipse- When the earth comes in between the Sun and the moon, and the shadow of the earth falls on the moon, is called lunar eclipse.

Question. How does a planet differ from a star?
Answer.  Difference between star and planet are as follows-
Planet                                                                                  Star
1.  A planet does not have its own light and heat.                A star possesses its heat and light. 
It derives its light from a star. Such these                           These celestial bodies are called stars.
bodies are called planets. 
2. A planet is usually smaller than stars.                            Stars are very huge objects compared to a planet in general.
3. Planets made up of solid materials.                                Stars are the giant balls of extremely hot gases.
4. For example – Earth, Jupiter etc.                                    For example – Sun.

Question. What is meant by the ‘Solar system’?
Answer. 1. ‘Sol’ in Roman mythology is the ‘Sun god’.
2. Solar means related to the sun or the ‘Family’ of the sun.
3. The sun, eight planets, satellites and some other celestial bodies known as steroids and meteoroids form the solar system. And the sun is the head of this system.

Question. Name all the planets according to their distance from thea sun?
Answer. The list of planets in the order of their distance from the sun is as follows-
i. Mercury
ii. Venus
iii. Earth
iv. Mars
v. Jupiter
vi. Saturn
vii. Uranus
viii. Neptune.

Question. Why is the Earth called a Unique planet?
Answer. The earth is regarded as a unique planet because of the following reasons-
i. The conditions favourable to support life are probably found on the earth.
ii. The earth is neither too hot nor too cold. It has water and air, which are very essential for our survival.
iii. The air has life supporting gases like- oxygen. Because of these reasons, the earth is a unique planet in the solar system.

Question. Why do we see one side of the moon always?
Answer. 1. The moon moves around the earth in about 27 days.
2. It takes the same time to complete one spin.
3. As a result, only one side of the moon is visible to us on the earth.

Question. What is the universe?
Answer. 1. The universe is the largest unit in which we live.
2. A galaxy is a huge system of billions of stars, and clouds of dust and gases. There are millions of such galaxies that make the Universe.

Question. Why earth is also known as a ‘Blue planet’?
Answer. from the outer space, the earth appears blue because its two- third surface is covered by water. It is therefore, called a Blue planet.

Question. What do you mean by the Pole star?
Answer. 1. In ancient times, people used to determine directions during the night with the help of stars.
2. The North star indicates the north direction. It is called as Pole star.
3. It always remains in the same position in the sky, and we can locate the position of the polar star with the help of the ‘Saptarishi’.

Question. Why Venus is considered as earth ‘Earth’s- twin’?
Answer. Venus is considered as Earth’s twins because its size and shape are very much similar to that of the earth.

Question. What do you mean by Human -made Satellite? Give examples?
Answer.
1. Human-made Satellite is an artificial body.
2. It is designed by scientists to gather information about the universe or for communication.
3. It is carried by a rocket and placed in the orbit around the earth.
For example- Some of the Indian satellite in space are INSAT, IRS, EDUSAT, etc.

Fill in the blanks in the following:-

1. Our Earth is flat sphere, therefore it is called geoid.

2. The circumference of the earth is 40,000 km.

3. The diameter of Earth on equator is 12756 km and diameter of earth at poles is 12712 Km.

CHAPTER 1 The earth in our solar system

Q1. Define the following terms celestial bodies, stars, constellations, planets, solar system, orbit, satellite, asteroids, meteoroids, galaxy, universe

Q2. What is full moon and new moon?

Q3. What is pole star? Explain with the help of diagrams.

Q4. What is geoid?

Q5. What does a word planet mean?

Q6. Give an account on moon?

Q7. Give a detailed account of solar system?

Q8. Why do we see one side of the moon always?

Q9. Why is the earth called a unique planet?

Q10. Fill in the blanks:-

1. Our solar system is a part of________galaxy.

2. The brightest star in the saptarishi is________.

3. The word planet is derived from greek word________.

4. The planet having rings around it is _______.

5. Planets which rotate from west to east is______.

6. Nearest planet to sun is________.

7. Earth’s twin planet is _________.

8. Humans who study the celestial bodies are called_______.

9. The first man to step on moon _______.

10.Sun light takes_____minutes to reach earth.

Q11. Why can’t moon support any form of life?

Q12. Star gazing is an ‘age-old’, natural way of calming the body and mind. Whenever you get time, go to the backyard of your house and discuss your observations with your friends and teachers in your school.

Fill in the blanks:

1. The sun, the moon and all those objects shining in the night sky are called ___________________.

2. Patterns formed by different groups of stars are called _____________________.

3. The ____________________ is in the centre of solar system.

4. The sun is about _________________ million kilometers away from the earth.

5. Earth’s shape is described as _____________________.

6. _______________________ was a famous astronomer of ancient India.

7. Those who study the celestial bodies and their movements are called _______________.

8. The light of the sun takes about _________________ minutes to reach the earth.

9. The numerous tiny bodies move around the sun are called ______________________.

10. The small pieces of rocks which move around the sun are called ___________________.

11. Our solar system is a part of ______________________ galaxy.

12. A _______________________ is a huge system of billions of stars and clouds of dust and gases.

13. _______________________ is an example of constellation.

14. The word planet comes from the Greek word _____________________ which means wanderer.

15. ________________________ was the first man to step on the surface of the moon.