LIGHT, SOUND AND FORCE.

Light helps us to

• hear things

• see things

-------- is the main source of heat and light on the Earth.

• stars

• sun

• moon

An object that gives out light is called a

• Luminous object

• non-luminous object

An object that does not give out light is called a

• luminous object

• non-luminous object

We can see non-luminous objects without light.

• True

• False

The dark patch on the ground is called

• Light

• Shadow

• Sound

• Noise

A shadow is always formed on the opposite side of the light.

• True

• False

Shadows are ____ in the evenings.

• Shorter

• Longer

We hear sounds with the help of our ____

• nose

• eyes

• ears

Choose the correct example for soft sounds.

• Telephone

• Bark of a dog

• whisper