water and its forms

Water changes into ice on ____________.

• heating

• melting

• freezing

• None of the above

Water changes into water vapour on ____________________.

• cooling

• freezing

• heating

• melting

When water changes into water vapour it is called

• evaporation

• melting

• condensation

• freezing

The three forms in which water exists are

• ice, water, water vapour

• water, snow, hailstone

• water vapour, gas, snow

• water, liquid, solid

Wet clothes get dried in the sun. This is an example of ______________.

• melting

• boiling

• condensation

• evaporation

Which of the following processes change water vapour into water on cooling?

• Melting

• Condensation

• Boiling

• Freezing

Choose the correct sequence in the water cycle.

• Clouds ------> water vapour ------> sea -------> rain

• Sea ------> water vapour -------> clouds -------> rain

• Cloud -------> rain --------> sea -------> water vapour

• Rain ---------> clouds---------> sea --------> water vapour

Which of these is the purest form of water?

• Sea water

• Rain water

• Tap water

• River water

Choose the INCORRECT statement.

• Evaporation turns water into water vapour.

• Evaporation takes place on heating.

• Evaporation is the cooling of air.

• Evaporation transfers water from land to the air.

Choose any one process that will change water into the gaseous form.

• Melting of snow

• Freezing of water

• Cooling of water vapour

• Boiling of water