HS-ESS2-7

Construct an argument based on evidence about the simultaneous coevolution of Earth systems and life on Earth.

More Stories in HS-ESS2-7

  1. Physics

    Explainer: Radioactive dating helps solve mysteries

    Knowing the decay rate of radioactive elements can help date ancient fossils and other artifacts.

    By
  2. Physics

    Cosmic timeline: What’s happened since the Big Bang

    Energy, mass and the cosmos' structure evolved a lot over the past 13.82 billion years — much of it within just the first second.

    By
  3. Life

    From icebergs to smoke, forecasting where dangers will drift

    Smoke drifts. Fish eggs float downstream. Where such drifting things end up may seem a mystery. But research can predict where they’ll end up.

    By
  4. Earth

    Scientists Say: Anthropocene

    Humans are changing the world in profound ways. Some scientists think those changes have launched a new epoch in Earth’s history: the Anthropocene.

    By
  5. Animals

    Tiny animals survive 24,000 years in suspended animation

    Tiny bdelloid rotifers awake from a 24,000-year slumber when freed from the Arctic permafrost.

    By
  6. Fossils

    Sudden shark die-off 19 million years ago eliminated most species

    New fossil evidence shows 90 percent of sharks died in the mysterious event.

    By
  7. Animals

    Let’s learn about dinosaurs’ fearsome neighbors

    Dinosaurs may get much of our attention, but there were plenty of other interesting critters during the Age of Reptiles, including our mammal ancestors.

    By
  8. Plants

    Dinosaur-killing asteroid radically changed Earth’s tropical forests

    The asteroid collision initially reduced the diversity in what had been sunny tropical rainforests. In time, the forests would become permanently darker.

    By
  9. Chemistry

    Extreme pressure? Diamonds can take it

    Diamond retains its structure even at extreme pressures, which could reveal how carbon behaves in the cores of some exoplanets.

    By