Color Mixing Experiment
[Pages:2]A STEM in the Park Take Home Activity
Color Mixing Experiment
What you Need:
? Recycled water bottle/soda bottle ? Salt
? Tape (to secure bottle lid)
? Candy colors (oil-based food coloring)
? Funnel
? Food colors (water-based food coloring)
? Baby oil/cooking oil
? Small mixing bowls
? Water
? 2 Spoons/mixing tools
Vocabulary:
? Primary Colors: a group of colors in which all other colors can be created by mixing (red, yellow, and blue).
? Secondary Colors: a color created by mixing two primary colors. (Orange, green, and purple)
? Tint: a color mixed with white. ? Shade: a color mixed with black. ? Density: the compactness of a substance.
Continued on back
Pre-Experiment Discussion:
1. Explain the 3 primary colors: red, yellow and blue. 2. Ask the child what they think will happen when 2 primary colors are mixed
(will create a secondary color: orange, green, or purple). 3. Ask the child what they think will happen when you mix oil and water
together.
Procedure:
1. To begin, choose 2 primary colors and set aside. (One must be waterbased, the other oil based.)
2. Pour equal parts oil and water into separate mixing bowls. 3. Beginning with water, mix 2-3 pinches of salt until dissolved. 4. Add several drops of a chosen food color to the salt water and mix well. 5. Add several drops of another candy color into the oil and mix well. 6. Place the funnel inside the empty bottle and pour in entire water mixture. 7. Pour in entire oil mixture. Ask the child what happened when the oil was
poured into the water. Did they mix? 8. Secure bottle lid with tape and have the child shake and move it about.
Post Experiment Discussion:
1. Ask the child what color was made when the contents in the bottle were shaken. (Explain that this is a secondary color.)
2. Ask the child what happens to the oil and water after they are done shaking it.
3. Ask the child which floats to the top, oil or water? Explain density and how oil is less dense than water, which is why it floats. Salt water is even less dense than water.
This activity is brought to you by the Family Center at the Toledo Museum of Art
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