Grade 5 · Science · Lesson 24

Biodiversity & Conservation

Biodiversity is the variety of living things — plants, animals, fungi, and tiny microbes — found in a place. A rainforest has high biodiversity because thousands of species share the same forest. A parking lot has low biodiversity. The more variety an ecosystem has, the stronger and more stable it is, because every species plays a small part in keeping the whole system healthy.

What this lesson teaches

1Define biodiversity as the variety of life in a place
2Identify common threats that put species at risk
3Match a threat to a conservation action that helps fix it
4Explain why protecting biodiversity matters for healthy ecosystems

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