25
Lesson 25 of 84 · Sound
ExperimentEndangered Species and Conservation
What You'll Learn
Endangered species are at risk of extinction due to habitat loss, pollution, hunting, or climate change. Conservation efforts work to protect these species and their habitats.
Key Words
- invertebrate
- species
Materials Needed
- markers
- tape
- small pots
- cotton balls
- zip-lock bags
Safety First
- Handle glass items carefully to avoid breakage.
- Do not mix unknown chemicals together.
Steps
Step 1 — Read
Study the diagram and label the parts you recognize.
Step 2 — Do
Design a controlled experiment: grow plants under different light conditions (full sun, partial shade, no light). Water equally and measure growth daily for one week.
Step 3 — Observe
Look for patterns in your observations.
Step 4 — Record
Make a graph or chart showing your results.
Check Your Understanding
Question 1
1 of 3Which part of a plant captures sunlight?