Develop a model that predicts and describes changes in particle motion, temperature, and state of a pure substance when thermal energy is added or removed.

More Stories in MS-PS1-4

  1. Chemistry

    Banana plant extract can slow how fast ice cream melts

    Food scientists now show that adding these tiny plant particles to ice cream may delay the rate at which this treat melts into a soupy mess.

  2. Earth

    Ancient Arctic ‘gas’ melt triggered enormous seafloor explosions

    Methane explosions 12,000 years ago left huge craters in bedrock on the Arctic seafloor. Scientists worry more could be on the way today as Earth’s ice sheets melt.

  3. Health & Medicine

    Adding ice to medics’ kits could help patients survive blood loss

    Placing an ice bag on the face should increase blood pressure — and oxygen to the brain — in people who have experienced life-threatening blood loss, a new study finds.

  4. Health & Medicine

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  5. Chemistry

    Cool Jobs: Counting calories

    Do calories count? A nutrition label doesn’t tell the whole story. Meet three researchers working to shed light on the complex connections between food and health.

  6. Health & Medicine

    Explainer: All about the calorie

    Calories are a measure of how much energy is in a food. But when it comes to powering our bodies, not all calories are equally available to the body.

  7. Chemistry

    Explainer: What is a catalyst?

    Catalysts are used in manufacturing and many technologies. They’re also found in living things. They help chemical reactions move along.