Grade 3 Air and Water

When rainwater seeps down into the ground it is called____________ .

• Water Cycle

• Condensation

• Evaporation

• Ground water

Which of the following statement is incorrect about Air.

• We need air to burn fire.

• We need air to breathe.

• We need air to get salt.

• We need air to move windmill.

What is atmosphere?

• Blanket of thick layer of air around the Earth.

• conversion of water vapour to water.

• Used to generate electricity.

• Natural cycle of water.

Air is a mixture of

• Oxygen

• Water Vapour

• Smoke

• All of these

Salt water is used to

• Obtain salt

• Generate electricity

• Both to obtained salt and generate electricity

• Crush grains

____________ is an instrument which is used to measure rain?

• Vessel

• Tank

• Bucket

• Rain Gauge

Water is available in ____________ forms.

• one

• two

• three

• four

Which of the following is the gaseous state of water?

• Ice

• Water

• Steam

• juice

When water vapour come in contact of cool air turns into water droplets and form clouds. This process is called ________________________.

• Water cycle

• Evaporation

• Condensation

• Precipitation

Which of the following is correct in terms of water cycle?

• Water changes from one form to another.

• Water changes into water vapour.

• Condensed water droplets fall and reach the ground.

• layer of air surround the Earth