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Raining Rainbows

Fri, May 24, 2013

Materials: Cup of cold water, shaving cream, food coloring in water, pipette or spoon

Activity: Make red, green and blue water by mixing food coloring and water. Fill a cup 2/3 full with clear, cold water. Spray shaving cream on top. Use pipette or spoon to add colored water on top of the shaving cream. Watch colors seep through the shaving cream and spray through the water.

Research Question: How does the temperature of the water affect how fast the colors mix?

Resources:

Shaving Cream Rain

Raining Rainbows

Tags: Buoyancy Liquid Color Weather 2013