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Lesson 64 of 84 · Ecosystems
ExperimentThe Butterfly Life Cycle (Part 2)
What You'll Learn
Coral reefs are underwater ecosystems built by tiny coral animals. They support an incredible diversity of marine life including fish, sea turtles, and invertebrates.
Key Words
- mutation
- natural selection
Materials Needed
- plastic wrap
- ruler
- magnifying glass
- paper towels
Safety First
- Do not mix unknown chemicals together.
Steps
Step 1 — Read
Read and learn: Coral reefs are underwater ecosystems built by tiny coral animals. They support an incredible diversity of marine life including fish, sea turtles, and invertebrates.
Step 2 — Do
Repeat the experiment two more times for accuracy.
Step 3 — Observe
Watch carefully for any changes and note the time.
Step 4 — Record
Create a data table to organize your measurements.
Check Your Understanding
Question 1
1 of 3Why do some birds migrate?