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What Makes Something
Feel Warm?
Modeling Energy Transfer: A Macroscopic and
Particulate View
Lesson Warm Up
This winter was soooo cold. My mother told me
to “put on a sweater, because I’m cold.”
Why do mothers tell their kids to put on a sweater? What is it about the sweater that keeps them warm?
THE
BIGQUESTION
Exploration #1: Observe the Properties of Materials
Explore the properties of the tiles:• In groups of 2, answer questions 3-5 (Step 1)• In groups of 2, answer questions 6-8 (Step 2)• In groups of 4, answer question 9 (Prepare a white
board that summarizes your ideas about temperature)
Exploration #2: Observe Ice on Material
Think about melting ice:• Work through questions 10-12• Individually fill answer ALL of #13• In your groups, complete Step 5.
Build a particle model that can be used to explain the interaction between the tile and the ice. Represent your model using a set of particulate drawings that describe the interactions between ice particles and tile particles.
Modeling Energy TransferA Macroscopic View and Engineering Practices
BUILD CONSENSUS
PREPARE A WHITEBOARD
SHARE IDEAS
Exploration #2: Observe Ice on Material
The American Association of Chemistry Teachers is brought to you by the American Chemical Society.
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