a headshot showing Katie Grace Carpenter

Katie Grace Carpenter

Katie Grace Carpenter is a science writer and curriculum developer, with degrees in biology and biogeochemistry. She also writes science fiction and creates science videos. Katie lives in the U.S. but also spends time in Sweden with her husband, who’s a chef.

All Stories by Katie Grace Carpenter

  1. Life

    Scientists Say: Theropod

    This group of dinosaurs once included Tyrannosaurus rex. Today, they include birds.

  2. Chemistry

    Scientists Say: Pyrolysis

    This oxygen-free “burning” reaction explains why charcoal can burn, but typical campfire soot cannot.

  3. Science & Society

    Scientists Say: Paradox

    When gut instinct leads you astray, paradoxes can point the right way.

  4. Physics

    Scientists Say: Antimatter

    Most of the universe consists of ordinary matter. But not all. A tiny fraction is matter’s mysterious twin: antimatter.

  5. Animals

    Scientists Say: Mammal

    Humans, platypuses, whales and kangaroos show the diversity of this vertebrate group.

  6. Earth

    Scientists Say: Virga

    Some rain in the desert falls but evaporates before landing.

  7. Math

    Scientists Say: Symmetry

    From snowflakes to animal body plans, repeating patterns of shapes show up throughout nature.

  8. Humans

    Scientists Say: Midden

    One ancient person’s, or animal’s, trash may become an archeologist’s treasure.

  9. Life

    Scientists Say: Phenology

    This field of science identifies the environmental cues behind life cycle patterns.

  10. Chemistry

    Scientists Say: Alloy

    These metallic mergers support our tallest buildings and our finest jewelry.

  11. Earth

    Scientists Say: Fjord

    These dramatic, steep-sided sea inlets form when glaciers carve deep channels from the terrain.

  12. Space

    Scientists Say: Event horizon

    Past this boundary, nothing that enters a black hole can ever leave — not even light.