23
Lesson 23 of 84 · Earth Materials
ExperimentCollecting Rocks
What You'll Learn
Rocks are always changing! Wind, water, and ice break them down very slowly.
Key Words
- mountain
- river
- lake
Materials Needed
- newspaper
- spray bottle
- cups
- thermometer
- rain gauge
Safety First
- Do not taste any materials.
- Wear safety goggles when mixing liquids.
Steps
Step 1 — Read
Read the introduction. What is this lesson about?
Step 2 — Do
Make a mini water cycle: put warm water in a bowl, cover it with plastic wrap, and place an ice cube on top. Watch what happens.
Step 3 — Observe
Look for something that changed. What is it?
Step 4 — Record
Circle the correct answer on your worksheet.
Check Your Understanding
Question 1
1 of 3What does a thermometer measure?