How Seeds Travel

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

Materials Needed

tape
small pots
cotton balls
zip-lock bags

Safety First

Do not mix unknown chemicals together.
Tie back long hair before starting the experiment.

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 3

What is the function of chloroplasts in plant cells?