69
Lesson 69 of 84 · Habitats
ExperimentHow Seeds Travel (Part 2)
What You'll Learn
Succession is the gradual change of an ecosystem over time. Primary succession begins on bare rock, while secondary succession occurs after a disturbance like a fire.
Key Words
- organism
- habitat
- population
Materials Needed
- paper towels
- markers
- tape
Safety First
- Be careful with scissors — ask an adult for help if needed.
- Do not look directly at the sun or bright lights.
- Clean up spills immediately to prevent slipping.
Steps
Step 1 — Read
Read and learn: Succession is the gradual change of an ecosystem over time. Primary succession begins on bare rock, while secondary succession occurs after a disturbance like a fire.
Step 2 — Do
Conduct the experiment by following the instructions.
Step 3 — Observe
Note any unexpected results.
Step 4 — Record
Share your findings with the class or a partner.
Check Your Understanding
Question 1
1 of 3What is the function of chloroplasts in plant cells?