The Water Cycle — Answer Key
Part A: Fill in the Blank
Write the missing word on the line.
1. The sun provides energy to drive the water cycle.
The correct answer is 'energy'. The sun provides energy to drive the water cycle.
2. Water evaporates most quickly on hot days.
The correct answer is 'hot'. Water evaporates most quickly on hot days.
3. Water vapor that rises cools and condenses into tiny droplets.
The correct answer is 'condenses'. Water vapor that rises cools and condenses into tiny droplets.
4. Clouds are made of millions of tiny water droplets.
The correct answer is 'droplets'. Clouds are made of millions of tiny water droplets.
5. When precipitation falls on mountains, it can become a stream or river.
The correct answer is 'stream'. When precipitation falls on mountains, it can become a stream or river.
6. Water that plants release into the air is called transpiration.
The correct answer is 'transpiration'. Water that plants release into the air is called transpiration.
7. The water we drink has been through the water cycle many times.
The correct answer is 'many'. The water we drink has been through the water cycle many times.
8. Fog forms when water vapor condenses close to the ground.
The correct answer is 'ground'. Fog forms when water vapor condenses close to the ground.
9. Ice and snow on mountains melt and flow into rivers.
The correct answer is 'melt'. Ice and snow on mountains melt and flow into rivers.
Part B: Match the Locations
Draw a line from each location to the type of water found there.
1.
in the sky as clouds
→ water vapor / water droplets
groundwater
falling from the sky
→ precipitation (rain/snow)
liquid saltwater
collected in an ocean
→ liquid saltwater
precipitation (rain/snow)
underground
→ groundwater
water vapor / water droplets
Match each item with its correct partner. The correct matches are: in the sky as clouds → water vapor / water droplets; falling from the sky → precipitation (rain/snow); collected in an ocean → liquid saltwater; underground → groundwater.