Applications of Evaporation

Q.

Assign reason for the following:

Wet clothes do not dry easily on a rainy day.

Q. Evaporation helps in the preservation of food.

1. True
2. False

Q. In which of the following cases, wet clothes will dry fastest?

1. 
2. 
3. 
4. 

Q. The thick black liquid obtained after evaporating sugarcane juice is called:

1. Sugar
2. Molasses
3. Pulp
4. Jaggery

Q.

Why do the clothes dry faster in summer?

Q. Rain water on roads dry up after a sunny day. This is an example of:

1. heating
2. freezing
3. evaporation
4. melting

Q. Wet clothes will dry faster in _______.

1. monsoon
2. hot summer days
3. winter
4. spring

Q. Hot tea will cool faster when poured in a ______.

1. glass
2. mug
3. cup
4. plate

Q.

Nita brings some small fish to her house. She would like to preserve them for 6-7 months and taste different species cooked by them. Which method would you suggest her to preserve the fish?

1. Irradiation

2. Spray drying

3. Vacuum drying

4. Freeze drying

Q. Wet clothes will dry faster in _______.

1. night
2. sunlight
3. rain
4. cold weather