20
Lesson 20 of 84 · Fossils
ExperimentRainy Season, Dry Season
What You'll Learn
Earthquakes happen when the ground shakes. They are caused by movement deep under the Earth's surface.
Key Words
- erosion
- landform
- mountain
Materials Needed
- rocks
- sand
- clay
- water
- plastic tray
- magnifying glass
Safety First
- Clean up spills immediately to prevent slipping.
- Use materials only as directed in the experiment.
Steps
Step 1 — Read
Talk about what you already know about Fossils.
Step 2 — Do
Sort rocks by color, size, and texture. Record how many are in each group.
Step 3 — Observe
Compare what happened to what you predicted.
Step 4 — Record
Tell the class one thing you learned today.
Check Your Understanding
Question 1
1 of 3What is soil made of?