Back to Standards Index: Next Generation Science Standards

Standards Index: HS-LS2-6.

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Evaluate claims, evidence, and reasoning that the complex interactions in ecosystems maintain relatively consistent numbers and types of organisms in stable conditions, but changing conditions may result in a new ecosystem.

Image from Ecology: The Yellowstone Wildfires of 1988
Video

Ecology: The Yellowstone Wildfires of 1988

Students will learn how the Yellowstone fires of 1988 created a national controversy that challenged long-held assumptions about the role that fires should play in forestry policy.
Image from Reintroducing Wolves to Yellowstone was a Success. That's When Trouble ​Began.
Video

Reintroducing Wolves to Yellowstone was a Success. That's When Trouble ​Began.

Students will learn about the reintroduction of the gray wolf to Yellowstone National Park and explore whether humans have a role to play in ensuring that animals do not become endangered.