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Heat: Science Lesson: Activity 1 of 3

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Hungry? Let’s take a potato and pop it in the oven—and see what happens when a cold potato turns into a hot potato.

The difference between hot and cold is all about the movement of molecules. When you heat a substance—a solid, a liquid, or a gas—what you’re really doing is adding energy to its molecules.

Simply put, heat measures the movement of molecules. The hotter the substance, the faster its molecules are moving.

Pick the statement that accurately completes this sentence: “In a hot potato…”
Question 1 of 10