Back to Standards Index: Next Generation Science Standards
Standards Index: HS-LS2-6.
Find lessons and videos that align with standards
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.
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.
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.