13
Lesson 13 of 84 · Plate Tectonics
ExperimentFossils: Clues to the Past
What You'll Learn
Fossils are preserved remains or traces of ancient organisms. They form when organisms are buried in sediment that hardens into rock over millions of years.
Key Words
- anemometer
- rock cycle
- aquifer
Materials Needed
- clay
- water
- plastic tray
- magnifying glass
- newspaper
- spray bottle
Safety First
- Tie back long hair before starting the experiment.
Steps
Step 1 — Read
Read and learn: Fossils are preserved remains or traces of ancient organisms. They form when organisms are buried in sediment that hardens into rock over millions of years.
Step 2 — Do
Create a labeled diagram of what you built or observed.
Step 3 — Observe
Compare the before and after states.
Step 4 — Record
Write your conclusion: did the results match your hypothesis?
Check Your Understanding
Question 1
1 of 3Which layer of Earth is the thinnest?