53
Lesson 53 of 84 · Land and Water
ExperimentCollecting Rocks (Part 2)
What You'll Learn
Rocks are always changing! Wind, water, and ice break them down very slowly.
Key Words
- mountain
- river
- lake
Materials Needed
- plastic tray
- magnifying glass
- newspaper
- spray bottle
Safety First
- Do not look directly at the sun or bright lights.
- Clean up spills immediately to prevent slipping.
- Use materials only as directed in the experiment.
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?