WorksheetsEvaporation of water
Total questions: 12
Worksheet time: 6mins
Evaporation is a process where _____________________
liquid changes to gas
throughout whole water
on surface of water
at any temperature
at boiling point
During evaporation, water molecules on the surface of water ___________________ from surroundings to move faster and then escapes into the air
obtain energy
lose energy
share energy
produce energy
When we sweat, our sweat evaporates and cools our body because ___________________________
part of the heat is removed from our body
sweat removes heat energy from the skin
air surrounding our body is colder
air movement is faster
Diagram above shows the change in the water level in a beaker after a few days. Which of the following explains the situation?
Water diffuses quickly
Water evaporates into the air
Water turns to solid
Water loses heat energy
Factors that affect the rate of evaporation are :
Humidity
Air movement
Exposed surface area
Surrounding temperature
Volume of water
The higher humidity, the ________________________ the rate of evaporation of water
lower
higher
no change
changes
The higher the surrounding temperature, the __________________ the rate of evaporation of water.
lower
higher
same
changes
The larger exposed surface area of water, the _________________ rate of evaporation of water.
slower
faster
changes
same
The faster the movement of air, the ____________the rate of evaporation of water.
slower
faster
changes
same
Which of the following can dry the wet handkerchief faster?
Hang it under the moving fan
Hang it in a dark place
Fold it into smaller size
Hang it under the Sun
The rate evaporation of water increases when the :
surrounding temperature is decreases
air movement is faster
humidity is higher
exposed surface area is larger
The correct application of water evaporation is everyday life are :
Using hair dryer to dry wet hair.
Fold the cloth half when hanging to dry.
Seafood like fish, squids and prawns are dried under the sun
Close the fan while we sweating
