69
Lesson 69 of 84 · Earth Materials
ExperimentErosion: Water Wears Away Rock (Part 3)
What You'll Learn
Rivers flow from high places to low places, carrying water, sand, and tiny rocks along the way.
Key Words
- wind
- storm
Materials Needed
- spray bottle
- cups
- thermometer
Safety First
- Protect your work surface with newspaper or plastic.
- 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 happens when the sun heats water?