Evaporation & Factors affecting it

What is humidity?

• Amount of water present in the air

• Amount of water vapours present in the air

• Amount of energy present in the air

Evaporation occurs only _____

• after boiling

• at surface of a liquid

• after extreme cooling

Do clothes dry faster in a hot or a cool day?

• Hot Day

• Cool Day

• It will be same in both the days

What is evaporation?

• Changing of a liquid into gas

• Changing of a gas into liquid

• Changing of a solid into gas

• Changing of a gas into solid

Which of the following is NOT an example of evaporation?

• Drying of clothes

• Water disappearing from a puddle

• Boiling water

• Perfume scent spreading in air

Which of the following surfaces will allow evaporation to occur the fastest?

• A small bowl of water

• A wide, shallow dish of water

• A closed bottle of water

• A cup of water in the shade

Which factor increases the rate of evaporation?

• High Humidity

• Low Temperature

• Strong Wind

• Small Surface Area

How does temperature affect evaporation?

• Higher temperature increases evaporation

• Higher temperature decreases evaporation

• Temperature has no effect on evaporation

How does humidity affect evaporation?

• High humidity increases evaporation

• High humidity decreases evaporation

• Humidity does not affect evaporation

Equal amounts of tea are poured into both the cup and the saucer. Which tea will cool faster?

• The tea in the cup.

• Tea in the saucer.

• Surface area has no effect on evaporation.