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Grade 2 Science · World 5: Hot & Cold Kitchen · Level 30
Heating Changes Things
Heat melts butter and chocolate, pops popcorn, and toasts bread.
Warm-up, learn, try it together, practice, then a quick check. About 15 minutes.
What children learn in Level 30
- Heating means adding heat. Heat comes from a stove, an oven, a toaster, or even the sun.
- Heating can melt things. Butter in a warm pan melts into a liquid.
- Heating can cook things, too. Bread turns into toast. A runny egg gets firm.
- Heating pops popcorn! The water inside each kernel heats up and bursts it open.
- Hot things can burn you. Always have a grown-up help with the stove, the oven, or the toaster.
Georgia Standards of Excellence in Science:
- S2P1.c — Provide evidence from observations to construct an explanation that some changes in matter caused by heating or cooling can be reversed and some changes are irreversible. (Changes in matter could include heating or freezing of water, baking a cake, boiling an egg.)