Air and Temperature
6. Discuss students’ predictions about the behavior of warm and cool air, in light of their observations. Ask, What do you think will happen if we heat the air in the can even more? In a demonstration area, dip another can in bubble solution; then heat it using a lighted candle, hotplate, warm towel, etc. (The bubble will bulge much more dramatically than students saw in their previous trials.)
7. Discuss the students’ discoveries about air movement and encourage them to think about what might be happening with the air inside the classroom. Ask, What happened to the air inside the can when it was placed in cold water? In warm water? Follow by encouraging a general discussion. Ask, Where are the sources of different air temperatures in the room? What will happen if the air in one part of the room is warmer than air in other parts?
Keywords: | air currents | air molecules | gas | gases | oxygen | properties of air | temperature | water | air
- Moreno, N., Tharp, B., and Dresden, J. (2011) The Science of Air Teacher’s Guide. Baylor College of Medicine: Houston. ISBN: 978-1-888997-74-3
- Illustration by M.S. Young © Baylor College of Medicine.
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Funded by the following grant(s)
My Health My World: National Dissemination
Grant Number: 5R25ES009259
The Environment as a Context for Opportunities in Schools
Grant Number: 5R25ES010698, R25ES06932
Foundations for the Future: Capitalizing on Technology to Promote Equity, Access and Quality in Elementary Science Education