20
Lesson 20 of 84 ยท Life Cycles
ExperimentDesert Survival Adaptations
What You'll Learn
Biomes are large regions with similar climate, plants, and animals. Major biomes include tropical rainforest, desert, grassland, tundra, and temperate forest.
Key Words
- photosynthesis
- vertebrate
- invertebrate
Materials Needed
- seeds
- soil
- cups
Safety First
- Handle glass items carefully to avoid breakage.
- Do not mix unknown chemicals together.
- Tie back long hair before starting the experiment.
Steps
Step 1 โ Read
Study the diagram and label the parts you recognize.
Step 2 โ Do
Set up a composting experiment: place food scraps in one sealed bag and leaves in another. Observe decomposition over two weeks and record changes.
Step 3 โ Observe
Compare the before and after states.
Step 4 โ Record
Write your conclusion: did the results match your hypothesis? What would you change next time?
Check Your Understanding
Question 1
1 of 3What is a food web?
