Match the columns. a. Core caused by the rotation of Earth b. Moon 28 days to go around the Earth c. Planets spins on its axis d. Earth go around the Sun e. Day and night centre of the Earth

The centre of the Earth is called the core. It is the innermost hot layer of the Earth. The outermost layer is the Crust, and the middle layer is Mantle. Moon is the natural satellite of the Earth that takes approximately 28 days to go around it. The number of days between one new moon and the next is around 28 days. The solar system involves eight planets that revolve around the sun in their fixed orbits. Earth spins on its axis. This spinning movement is called the Earth's rotation. It takes around 24 hours to complete one rotation. The Earth shows two types of movements, rotation and revolution. The spinning movement of the Earth on its axis is called rotation. Rotation causes day and night. a. Core centre of the Earth b. Moon 28 days to go around the Earth c. Planets go around the Sun d. Earth spins on its axis e. Day and night caused by the rotation of Earth

E M B I B E

Science Ahead 3>Chapter 20 - Test Paper 5>Exercise 1>Q 7

MEDIUM

3rd CBSE

IMPORTANT

Earn 100

Draw a diagram showing the revolution of the Earth around the Sun.

Important Questions on Test Paper 5

EASY

3rd CBSE

IMPORTANT

Science Ahead 3>Chapter 20 - Test Paper 5>Exercise 1>Q 1

Choose the appropriate word and fill in the blank.

The layer of the Earth on which we live is the _____. (crust, core)

EASY

3rd CBSE

IMPORTANT

Science Ahead 3>Chapter 20 - Test Paper 5>Exercise 1>Q 1

Choose the appropriate word and fill in the blank.

The Earth takes _____ days to complete one revolution. ( $264, 365$ )

EASY

3rd CBSE

IMPORTANT

Science Ahead 3>Chapter 20 - Test Paper 5>Exercise 1>Q 1

Day and night are caused by the _____ of the Earth.

EASY

3rd CBSE

IMPORTANT

Science Ahead 3>Chapter 20 - Test Paper 5>Exercise 1>Q 1

Choose the right word and fill in the blank provided below.

The Sun's family has _____ planets. (eight/nine)

EASY

3rd CBSE

IMPORTANT

Science Ahead 3>Chapter 20 - Test Paper 5>Exercise 1>Q 1

Groups of stars making shapes and patterns are called _____.

HARD

3rd CBSE

IMPORTANT

Science Ahead 3>Chapter 20 - Test Paper 5>Exercise 1>Q 2

Match the columns.

a. Core	caused by the rotation of Earth
b. Moon	28 days to go around the Earth
c. Planets	spins on its axis
d. Earth	go around the Sun
e. Day and night	centre of the Earth