Changes in Water

Other than presence of wind, which are the factors that affects the rate of evaporation?

(You may select more than one option)

• Surface area

• Temperature

• Exposed surface area

• Humidity

Evaporation is a process that happens _________________________________.

• at 100°C

• between 0°C and 100°C

• between 10°C and 100°C

Freezing is a heat ____________ process.

• loss

• gain

Melting is a heat __________ process.

• loss

• gain

Melting is a process that changes _____________________________.

• solid to liquid

• liquid to solid

• liquid to gas

• gas to liquid

Condensation occurs when _____________ water vapour comes into contact with a cooler surface, loses heat and condenses into water droplets.

• colder

• warmer

Condensation occurs when warmer water vapour comes into contact with a _______________ surface, loses heat and condenses into water droplets.

• warm

• warmer

• cool

• cooler

Condensation occurs when warmer water vapour comes into contact with a cooler surface, _____________ heat and condenses into water droplets.

• loses

• gains

Condensation occurs when warmer water vapour comes into contact with a cooler surface, loses heat and __________________ into water droplets.

• codenses

• condenses

• condeses

• condences

Boiling is a heat __________ process and occurs ________________________.

• gain; at the surface of the liquid

• gain; throughout the liquid

• loss; at the surface of the liquid

• loss; throughout the liquid