Teaching Children Science: A Project-Based Approach, 2/e

Joe Krajcik, University of Michigan - Ann Arbor
Charlene Czerniak, University of Toledo
Carl Berger, University of Michigan - Ann Arbor

How Do I Develop and Use Benchmark Lessons?

HEATING WATER IN A PAPER CUP

Materials Needed:


1		Fill a paper cup with water. Measure the temperature of the water. Light a Sterno can and heat the cup of water over the Sterno. If you have a ring and ring stand, you might want to suspend the paper cup filled with water on the ring.



2		Predict what will happen. How hot can the water become? Will the cup start on fire? Why or why not?



3		What do you observe happening? Record your observations. Explain the observations.



4		As an alternative to this activity, prepare the demonstration and present it to some of your classmates. How do they react to the demonstration? What issues arise?



5		How do your predictions compare to your observations? Record your ideas in your portfolio.

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