57
Lesson 57 of 84 · Habitats
ExperimentWhat Do Worms Do for Soil? (Part 2)
What You'll Learn
Decomposers like mushrooms and bacteria break down dead plants and animals, returning nutrients to the soil.
Key Words
- reptile
- amphibian
Materials Needed
- 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
Look at the new words. Can you say each one?
Step 2 — Do
Draw a food chain: start with the sun, then a plant, then an animal that eats it, then a predator.
Step 3 — Observe
Use your senses to describe what you notice.
Step 4 — Record
Write 1-2 sentences about what happened.
Check Your Understanding
Question 1
1 of 3Where do polar bears live?