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Gr 2 EVS REVISION - ANNUAL EXAMINATION
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Name the process:-Clothes drying under the Sun.
Evaporation
Name the process.- water droplets on a chilled water bottle
Condensation.
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.
What are the three forms of water
water, ice and water vapour.
In extremely cold climates, the rain drops fall as _______
snow flakes/ hai stones
The falling of heavy water droplets in the form of rain is called __
precipitation
Why do we keep ice cream in a freezer?
So that it does not melt and remain frozen.
Condensation occurs
Water vapour changes into water.
water vapour cools and droplets join together.
Clouds are formed.
The sun heats the water
water changes into water vapour.
How are hailstones formed?
Rain water freezes to form hailstones.
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.
Dams are built ....
Dams are built to collect river water and also used to produce electricity.
How does water in the river become dirty?
Washing clothes, Dumping waste from factories, Bathing animals.
How does water reach deep into the soil?
Rain Water goes deep into the soil through pores in the soil.
How are crops irrigated in the field?
Water from tube wells is used to irrigate crops in field.
What are the main sources of water ?
Rain water, ground water, surface water and snow