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Lesson 23 of 84 · Ecosystems
ExperimentThe Butterfly Life Cycle
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
- vertebrate
- invertebrate
- species
Materials Needed
- tape
- small pots
- cotton balls
- zip-lock bags
- labels
Safety First
- Work in a well-ventilated area when using vinegar or other strong-smelling substances.
- Dispose of materials properly after the experiment.
Steps
Step 1 — Read
Read the introduction and identify the main idea of this lesson.
Step 2 — Do
Collect and classify 10 organisms from your yard into kingdoms, phyla, or groups. Use a dichotomous key if available.
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?