Gr 2 EVS REVISION - ANNUAL EXAMINATION | Baamboozle - Baamboozle

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Why do we keep ice cream in a freezer?

So that it does not melt and remain frozen.

The falling of heavy water droplets in the form of rain is called __

precipitation

How does water in the river become dirty?

Washing clothes, Dumping waste from factories, Bathing animals.

In extremely cold climates, the rain drops fall as _______

snow flakes/ hai stones

How are crops irrigated in the field?

Water from tube wells is used to irrigate crops in field.

Name the process.- water droplets on a chilled water bottle

Condensation.

The sun heats the water

water changes into water vapour.

What are the main sources of water ?

Rain water, ground water, surface water and snow

What are the three forms of water

water, ice and water vapour.

Mr Wrong : Candle wax dripping on a burning candle is an example of freezing.

Candle wax dripping on a burning candle is an example of melting.

water vapour cools and droplets join together.

Clouds are formed.

Dams are built ....

Dams are built to collect river water and also used to produce electricity.

Name the process:-Clothes drying under the Sun.

Evaporation

Condensation occurs

Water vapour changes into water.

Difference between melting and freezing.

The change of solid form into liquid form is called melting . The change of liquid form into solid form is called freezing.

How are hailstones formed?

Rain water freezes to form hailstones.

How does water reach deep into the soil?

Rain Water goes deep into the soil through pores in the soil.