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Lesson 42 of 84 · Waves
LessonBiodiversity and Ecosystems (Part 2)
What You'll Learn
Biodiversity—the variety of life in an ecosystem—makes ecosystems more resilient. Loss of biodiversity from human activities threatens ecosystem stability worldwide.
Key Words
- amplitude
- reflection
Steps
Step 1 — Read
Read and learn: Biodiversity—the variety of life in an ecosystem—makes ecosystems more resilient. Loss of biodiversity from human activities threatens ecosystem stability worldwide.
Step 2 — Do
Conduct the experiment by following the instructions.
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 refraction?
