NCERT Class VI Geography Solutions: Chapter 1-The Earth in the Solar System

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Question 1:

Answer the following questions briefly.

A. How does a planet differ from a star?

Answer:

Difference between star and planet:

Difference between Star and Planet
Difference between star and planet

Star

Planet

Some celestial bodies are made up of gases. They have their own heat and light, which they emit in large amounts. These celestial bodies are called stars.

Some celestial bodies do not have their own heat and light. They are lit by light of stars. Such bodies are called planets.

Stars twinkle at night.

Planets do not twinkle.

A star has very high temperature.

Planets have low temperatures.

Example: Sun

Example: Earth. Jupiter etc.

B. What is meant by the ‘Solar System’?

Answer:

The term Solar System refers to the “family” of the Sun. The sun, eight planets, satellites and some other celestial bodies known as steroids and meteoroids form the solar system. The Sun is the “head” of this system.

C. Name all the planets according to their distance from the sun.

Answer:

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.

Diagram shows eight planets in the order of their distance

Our Solar System

Diagram shows eight planets in the order of their distance

D. Why is the Earth called a unique planet?

Answer:

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.

E. See only one side of the moon always?

Answer:

The moon moves around the earth in about 27 days. It takes exactly the same time to complete one spin. As a result, only one side of the moon is visible to us on the earth. One day of the moon is equal to 27 Earth days. So, only one side of the moon can be seen from the earth.

This image shows the Moon rotates around the Earth

Moon Rotates Around the Earth

This image shows the Moon rotates around the Earth

F. What is the Universe?

Answer:

The Universe is the largest unit in which we live. It is a collection of millions of galaxies. There is only one Universe, and everything that exists, exists in this Universe itself.

Question 2:

Tick the correct answer.

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

    1. Jupiter

    2. Saturn

    3. Venus

  2. Which is the third nearest planet to the sun?

    1. Venus

    2. Earth

    3. Mercury

  3. All the planets move around the sun in a

    1. Circular path

    2. Rectangular path

    3. Elongated path

  4. The Pole Star indicates the direction to the

    1. South

    2. North

    3. East

  5. Asteroids are found between the orbits of

  6. Saturn and Jupiter

  7. Mars and Jupiter

  8. The Earth and Mars

Answer:

  1. 3. Venus

  2. 2. Earth

  3. 3. Elongated path

  4. 2. North

  5. 2. Mars and Jupiter

Question 3:

Fill in the blanks.

  1. A group of______ forming various patterns is called a _________.

  2. A huge system of stars is called _________.

  3. ______is the closest celestial body to our earth.

  4. ______is the third nearest planet to the sun.

  5. Planets do not have their own______ and _______.

Answer:

  1. A group of star forming various patterns is called a constellation.

  2. A huge system of stars is called galaxy.

  3. Moon is the closest celestial body to our earth.

  4. Earth is the third nearest planet to the sun.

  5. Planets do not have their own heat and light.