Predator and Prey Relationships (Part 2)

What You'll Learn

Predator-prey relationships help keep ecosystems balanced. When prey populations increase, predator populations grow too. When predators reduce prey numbers, predator populations then decline.

Key Words

adaptation
metamorphosis

Materials Needed

markers
tape
small pots
cotton balls

Safety First

Tie back long hair before starting the experiment.
Protect your work surface with newspaper or plastic.

Steps

Step 1 — Read

Look at the vocabulary words and write a definition for each in your own words.

Step 2 — Do

Set up a composting experiment: place food scraps in one sealed bag and leaves in another. Observe decomposition over two weeks and record changes.

Step 3 — Observe

Draw a detailed diagram of what you observe.

Step 4 — Record

Write a conclusion: what did your results show? Did they match your prediction?

Check Your Understanding

Question 1

1 of 3

What is the difference between a predator and prey?