P4 Science · Chapter 7brightbit.net/worksheets
The Water Cycle
Name: ______________________Class: ________Date: ____________Score: ____ / 10
- 1.
What is the process by which liquid water turns into water vapour called?
(a) Condensation(b) Precipitation(c) Evaporation(d) Transpiration
- 2.
What is condensation?
(a) Water vapour cooling and turning back into liquid water(b) Liquid water turning into water vapour(c) Water falling from clouds as rain or snow(d) Water soaking into the ground
- 3.
What is precipitation?
(a) The evaporation of water from the ocean(b) Water falling from clouds to the ground as rain, snow, sleet, or hail(c) The absorption of water by plant roots(d) The formation of clouds from water vapour
- 4.
What provides the energy that drives the water cycle?
(a) The Moon's gravity(b) The Sun's heat energy(c) Wind energy(d) The Earth's rotation
- 5.
Water vapour rising into the atmosphere cools and forms clouds. This process is called ___.
(a) Evaporation(b) Precipitation(c) Condensation(d) Runoff
- 6.
What is transpiration in the water cycle?
(a) Water seeping into the ground(b) Water vapour released by plants through their leaves(c) Water flowing from rivers into the sea(d) Snow melting into liquid water
- 7.
After rain falls on land, what are the TWO main paths that rainwater can take?
(a) It can evaporate or condense(b) It can run off into rivers/seas or soak into the ground(c) It can form clouds or fall as snow(d) It can be absorbed by animals or absorbed by the sun
- 8.
Singapore receives heavy rainfall throughout the year. This rainfall is part of the water cycle. Which step comes BEFORE the rainfall?
(a) Runoff(b) Evaporation and condensation(c) Infiltration(d) Transpiration only
- 9.
Name the TWO processes in the water cycle that return water to the atmosphere.
Answer: ____________________________________
- 10.
Deforestation (cutting down forests) can affect the water cycle. Explain ONE way it does this.
Answer key — P4 Science: The Water Cycle
For parents. Step-by-step explanations for every question are free on brightbit.net.
- 1.(c) Evaporation
- 2.(a) Water vapour cooling and turning back into liquid water
- 3.(b) Water falling from clouds to the ground as rain, snow, sleet, or hail
- 4.(b) The Sun's heat energy
- 5.(c) Condensation
- 6.(b) Water vapour released by plants through their leaves
- 7.(b) It can run off into rivers/seas or soak into the ground
- 8.(b) Evaporation and condensation
- 9.evaporation and transpiration
- 10.fewer trees means less transpiration so less water vapour enters the atmosphere leading to less rainfall
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