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Author(s): Nancy Moreno, PhD, Barbara Tharp, MS, and Judith Dresden, MS.

Let's Experiment

Procedure (cont.)

2. Set up a station from which the Materials Managers can pick up the following supplies for their groups: one prepared can, one shallow dish or bowl with bubble solution, one cup half-filled with warm tap water, one cup half-filled with ice water (include a few ice cubes), and one cup half-filled with room temperature water.

3. Demonstrate how to tip the open end of a can in the bubble solution to create a thin film. Have students predict what might happen to bubble film when the can is placed in room temperature, warm and cold water. They should draw their predictions on their student sheets. Have students dip the open ends of their cans into bubble solution. A film of solution will be visible across the top of the can. Direct each group to place its can in one of the cups (cold water, warm water or room temperature water). Let students observe the bubble film for about a minute. Ask, What is happening to the bubble? What does this tell us about the air inside the can?

4. Have students record their observations on the “My Observations” sheet.

5. Then have each group make a new bubble film and place its can in one of the other cups. Have students record their results before placing and observing the can in the third cup.

Funded by the following grant(s)

National Institute of Environmental Health Sciences, NIH

National Institute of Environmental Health Sciences, NIH

My Health My World: National Dissemination
Grant Number: 5R25ES009259
The Environment as a Context for Opportunities in Schools
Grant Number: 5R25ES010698, R25ES06932

Houston Endowment Inc.

Foundations for the Future: Capitalizing on Technology to Promote Equity, Access and Quality in Elementary Science Education