70

Lesson 70 of 84 ยท Ecosystems

Experiment

Animal Communication (Part 2)

What You'll Learn

Animals communicate using sounds, body language, colors, and chemical signals called pheromones. Communication helps them find mates, warn of danger, and mark territory.

Key Words

  • decomposer
  • food chain

Materials Needed

  • markers
  • tape
  • small pots
  • cotton balls
  • zip-lock bags

Safety First

  • Do not taste any materials.
  • Wear safety goggles when mixing liquids.

Steps

Step 1 โ€” Read

Review the background information on Ecosystems before starting.

Step 2 โ€” Do

Build a model ecosystem in a jar using soil, small plants, and water. Seal it and observe how the water cycle works inside it for one week.

Step 3 โ€” Observe

Observe what happens and describe it in detail.

Step 4 โ€” Record

Record your observations in your science journal with measurements and descriptions.

Check Your Understanding

Question 1

1 of 3

Which is an example of a learned behavior in animals?