Photosynthesis: How Plants Make Food

What You'll Learn

A food chain shows how energy passes from one organism to another. Producers like plants capture energy from the sun, herbivores eat the plants, and carnivores eat the herbivores.

Key Words

consumer
decomposer
food web

Materials Needed

cotton balls
zip-lock bags
labels
seeds

Safety First

Clean up spills immediately to prevent slipping.
Use materials only as directed in the experiment.

Steps

Step 1 — Read

Read about Organisms and write down three key facts.

Step 2 — Do

Compare the skeletal structures of a bird wing, human arm, and whale flipper using diagrams. Identify homologous bones and write what this tells us about common ancestry.

Step 3 — Observe

Compare the before and after states.

Step 4 — Record

Write your conclusion: did the results match your hypothesis? What would you change next time?

Check Your Understanding

Question 1

1 of 3

What gas do plants release during photosynthesis?