MATERIALS NEEDED: zip lock bag - 1 quart size masking tape food coloring water

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STEPS TO FOLLOW:

Pour water into the plastic bag. Add a few drops of food coloring. Seal the bag and place it in a sunny window.

Tape one corner of the top of the bag to the window. Let the sun shine on the bag for a couple of hours, then observe what you see.

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Last modified: Tue Aug 19 15:16:01 PDT 1997

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