class 6th chapter 1 Geography

                                      Class  VI

                 Solution of chapter 1 (Geography)

Q1.How does a planet differ from a star?

Ans.      Stars                                                       Planets

1.Are hot.                                                1.Temperature depends on their distance from the sun.

2.Have their own heat and light.         2.Do not have their own heat and light.

3.Give out light.                                      3.Receive light.

4.They twinkle.                                       4.They do not twinkle.

5.Are uncountable.                                5.They can be counted.

Q2.What is meant by the Solar System?

Ans.The sun, eight planets, satellites and some other celestial bodies known as asteroids and meteoroids form the solar system.

The word ‘Solar ‘ is derived from a latin word ‘solaris’ which means sun.The solar system, hence, means  ‘family of the sun’.

Q3.Name all the planets according to their distance from the sun.

Ans.In order of their distance from the sun, the eight planets are: Mercury, Venus,Earth, Mars, Jupiter, Saturn, Uranus and Neptune.

Q4. Why is the Earth called a unique planet?

Ans. Conditions favourable to support life are probably present only on Earth. TheEarth 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.

Q5.Why do we see only one side of the Moon always?

Ans. 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.

Q6.What is the Universe?

Ans. A galaxy is a huge system of billions of stars, and clouds of dust and gases.Millions of such galaxies make up the universe.

Q2. Fill in the blanks.

(a)A group of stars forming various patterns is called a constellation.

(b) A huge system of stars is called a galaxy.

(c)The Moon is the closest celestial body to our Earth.

(d) Earth is the third nearest planet to the Sun.

(e)  Planets do not have their own heat and light.

Q3.Tick the correct answer.

(a) The planet known as the “Earth’s Twin” is

(i) Jupiter (ii) Saturn (iii) Venus

(b) Which is the third nearest planet to the Sun?

(i) Venus (ii) Earth (iii) Mercury

(c) All the planets move around the Sun in a

(i) Circular path (ii) Rectangular path (iii) Elongated path

(d) The Pole Star indicates the direction to the

(i) South (ii) North (iii) East

(e) Asteroids are found between the orbits of

(i) Saturn and Jupiter (iii) Mars and Jupiter (iii) The earth and Mars