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. Animals

    Scientists Say: Mammal

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

  2. Earth

    Scientists Say: Virga

    Some rain in the desert falls but evaporates before landing.

  3. Math

    Scientists Say: Symmetry

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

  4. Humans

    Scientists Say: Midden

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

  5. Life

    Scientists Say: Phenology

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

  6. Chemistry

    Scientists Say: Alloy

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

  7. Earth

    Scientists Say: Fjord

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

  8. Space

    Scientists Say: Event horizon

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

  9. Chemistry

    Scientists Say: Fluoride

    This electrically charged form of fluorine boasts powerful tooth-strengthening abilities.

  10. Earth

    Scientists Say: Snow line

    On Earth, this line marks the edge of snow-covered ground. In space, it marks a spot where a certain molecule might freeze.

  11. Math

    Scientists Say: Topology

    This gamelike field of math probes the limits of families of shapes.

  12. Genetics

    Caffeine may dial down genes crucial for brain development, teen finds

    Data from animal studies point to a troubling possibility: Caffeine may alter brain development.