Water Cycle — Answer Key
Part A: Trace the Words
Trace each word carefully by following the dotted lines.
1. drops
2. puddle
3. vapor
4. cloud
5. rain
6. cycle
Part B: Fill in the Blank
Write the missing word or number on each line.
1. When water heats up it becomes water vapor.
Heat gives water energy to change from liquid into a gas, and that gas is called water vapor.
2. Water vapor rises up into the sky.
Warm vapor is lighter than the air around it, so it floats up high into the sky to form clouds.
3. A cloud lets go of water as rain.
When a cloud holds too much water, the heavy drops fall out of it — we call these falling drops rain.
4. The water cycle happens over and over in a loop.
A loop keeps going back to where it started, and the water cycle repeats the same steps again and again.
Part C: True or False?
Read each statement. Circle True or False.
1. Water vapor is water you can see floating in the air.
True False
False — water vapor is an invisible gas, so you cannot see it until it cools and forms clouds or fog.
2. Rain helps fill up rivers and ponds.
True False
True — when rain lands on the ground, it flows into low areas and fills up rivers and ponds.
3. The water cycle stops when it is nighttime.
True False
False — the water cycle keeps working day and night because water is always moving somewhere on Earth.