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I thought this lesson was in need of a demonstration, so I invented my own. I turned on a portable electric stove and had my son drop a cube of ice on it. We watched the ice change from solid to liquid to gas and talked about how the molecules were changing position. While this was happening I had him hold his hand a foot or so above the stove for a few seconds to feel the conduction of heat.

***This material was intended to be used over the course of a week, with 2nd grade level students. I did the demonstrations (with printable worksheets) with my 7-9 yr olds as a way to further explain the Heat Causes Change lesson from Moving Beyond the Page. Fantastic resource, hands-on activities, and printable work/lab sheets for only a few dollars.

- Observe changes in matter due to heating and cooling of common materials.

- Explain how heat is produced and can move from one state of matter to another.

- All matter does not change in the same way.

The pdf packet contains:

- Essential questions: What happens when electric (heat) energy is added to liquid water? What happens when light energy is added to liquid water? What happens when heat energy is removed from liquid water? What happens when heat energy is removed from other liquids? What happens when heat energy is added to solid water?

- A hypothesis sheet that can be used as a pre- and post- test

- Lesson plan for the experiments, including introduction and questioning for the experiment de-briefs

- Experiment directions

- Note-taking sheets for each of the experiments

- A "sum it up" sheet to be used a de-brief and summary of learning

• link: http://www.teacherspayteachers.com/Product/Heating-and-Cooling-Matter-Exper