34
Lesson 34 of 84 · Habitats
ExperimentHow Trees Make Oxygen
What You'll Learn
All living things share basic characteristics: they grow, reproduce, respond to their environment, and need energy to survive. Plants make their own food through photosynthesis, while animals must eat other organisms.
Key Words
- community
- environment
Materials Needed
- cups
- water
- plastic wrap
- ruler
- magnifying glass
- paper towels
Safety First
- Use materials only as directed in the experiment.
- Keep small objects away from young children.
Steps
Step 1 — Read
Read and learn: All living things share basic characteristics: they grow, reproduce, respond to their environment, and need energy to survive. Plants make their own food through photosynthesis, while animals must eat other organisms.
Step 2 — Do
Follow the procedure carefully, step by step.
Step 3 — Observe
Compare the before and after states.
Step 4 — Record
Write your conclusion: did the results match your hypothesis?
Check Your Understanding
Question 1
1 of 3What is the main source of energy for most food chains?