26

Lesson 26 of 84 · Ecosystems

Experiment

Coral Reef Communities

What You'll Learn

Seeds contain a tiny plant embryo and a food supply. When conditions are right—enough water, warmth, and oxygen—the seed germinates and a new plant begins to grow.

Key Words

  • species
  • organism
  • habitat

Materials Needed

  • cotton balls
  • zip-lock bags
  • labels
  • seeds
  • soil
  • cups

Safety First

  • Protect your work surface with newspaper or plastic.
  • Adult supervision recommended.

Steps

Step 1Read

Read about Ecosystems and write down three key facts.

Step 2Do

Create a detailed food web for a local ecosystem. Include at least 8 organisms and use arrows to show energy flow from producers to top predators.

Step 3Observe

Draw a detailed diagram of what you observe.

Step 4Record

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

Check Your Understanding

Question 1

1 of 3

What is an adaptation?

Coral Reef Communities — Ecosystems | 4th Grade Science | LittleActivity | LittleActivity