4
Lesson 4 of 84 · Weather
ExperimentWhat Causes Rain?
What You'll Learn
A flood happens when too much rain falls and water overflows rivers and streams.
Key Words
- cloud
- rain
Materials Needed
- cotton balls
- food coloring
- clear container
- rocks
Safety First
- Adult supervision recommended.
- Do not taste any materials.
Steps
Step 1 — Read
Look at the picture and read the labels.
Step 2 — Do
Pour water on a pile of sand and a pile of rocks. Watch how the water flows differently.
Step 3 — Observe
Draw a picture of what you observe.
Step 4 — Record
Share your results with a partner.
Check Your Understanding
Question 1
1 of 3What causes wind?