6
Lesson 6 of 84 · Ecosystems
ExperimentPhotosynthesis: 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
- symbiosis
- mutualism
- parasitism
Materials Needed
- ruler
- magnifying glass
- paper towels
- markers
- tape
Safety First
- Do not taste any materials.
- Wear safety goggles when mixing liquids.
- Wash hands after handling materials.
Steps
Step 1 — Read
Read about Ecosystems 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 3What gas do plants release during photosynthesis?