In this section we will make a quantitative study of the relationship between temperature and heat -- that is, we will measure how much energy it takes to change the temperature of an object by a measured amount.

Main Pages	Estimated time required
Exploring thermal energy	15 minutes
Thermal energy contained in a hot object	**30 minutes
Sharing energy	60 minutes
Effect of using different materials	15 minutes
How energy is related to temperature	30 minutes
Concluding the unit on thermal energy and temperature	30 minutes

**For the first activity, you will need a pair of rocks that have been sitting in hot water for 30 minutes. Set that up before doing the Exploration section.
Another page relevant to this section: Why study thermal energy?"

Materials needed for this section

• ice, ice water, and hot water (please see local materials)
• thermometers*
• styrofoam cups*
• a small cup to measure with*
• two rocks* of similar type but different masses, about 150 g and 300 g.