[ppt]powerpoint presentation · web viewwhy do mothers tell their kids to ... as groups are...

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.