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Worksheet Solutions: The Earth in the Solar System Notes | Study Social Studies (SST) Class 6 - Class 6

Document Description: Worksheet Solutions: The Earth in the Solar System for Class 6 2022 is part of Social Studies (SST) Class 6 preparation. The notes and questions for Worksheet Solutions: The Earth in the Solar System have been prepared according to the Class 6 exam syllabus. Information about Worksheet Solutions: The Earth in the Solar System covers topics like and Worksheet Solutions: The Earth in the Solar System Example, for Class 6 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for Worksheet Solutions: The Earth in the Solar System.

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Q.1. State True (T) or False (F). 

(i) All the planets move around the sun in an elongated path. True
(ii) It is huge and made up of extremely hot liquids. False
(iii) The word „planet‟ comes from the Greek word “Planetai” which means „wanderers‟. True
(iv) The moon is in the centre of the solar system. False
(v) Till recently (August 2006), Pluto was also considered a planet. True
(vi) Word geography is made of two Greek words, „ge‟ meaning‟ „earth‟ and „graphia‟ meaning „writing‟. True

Q.2. Name the natural satellite of the earth?

Moon is the natural satellite of the earth.

Q.3. Who are called astronomers?

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

Q.4. Name few dwarf planets.

Pluto, Ceres, 2003 and UB313

Q.5. How long does it take for the moon to complete one revolution?

The moon moves around the earth in about 27 days.

Q.6. What is a galaxy?

A galaxy is a huge system of billions of stars, and clouds of dust and gases.

Q.7. Which is the third nearest planet to the sun?

Earth is the third nearest planet to the sun.

Q.8. What is a geoid?

A sphere with its ends flattened at poles (just like earth) is called geoid.

Q.9. How can we locate the position of the pole star?

We can locate the position of the Pole Star with the help of the Saptarishi.

Q.10.  Fill in the blanks. 

(i) The North Star indicates the north direction.
(ii) The sun is in the centre of the solar system.
(iii) We can see the full moon only once in about a month's time.
(iv) Full moon night is also known as Poornima.
(v) Ursa Major or Big Bear is a constellation.
(vi) Aryabhatta was a famous astronomer of ancient India.

Q.11. Which is the closest celestial body to our earth?

The moon is the closest celestial body to our earth.

Q.12. How much time light takes to reach the earth?

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

Q.13. How long does it take to go from a new moon to a full moon?

A fortnight

Q.14. Where are the most asteroids found?

They are found between the orbits of Mars and Jupiter.

Q.15. What cast shadow on the moon?

It has mountains, plains and depressions on its surface. These cast shadows on the moon’s surface.

Q.16. How many times can we see full moon in a month time?

We can see the full moon only once in about a month’s time.

Q.17. What is the speed of light?

Light travels at the speed of about 300,000 km per second.

Q.18. Why do the stars look so small in the sky?

The stars look so small in the sky because they are very far from us.

Q.19. What is a Pole Star?

The North Star indicates the north direction. It is also called the Pole Star.

Q.20. From where does Earth receive heat and light?

Earth gets all its heat and light from the sun, which is its nearest star.

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