Awesome Osmosis

color mixing science project for kids to preform from home to observe cause and effect

This activity promotes development and learning by encouraging children to demonstrate an understanding of cause-and-effect as they explore the concept of osmosis.

Materials Needed:

  • 3 clear cups
  • Yellow and blue food coloring
  • Paper towels

Participants: This activity is intended for adult/child interaction.

Directions:

  • Step 1: Roll two long pieces of the paper toweling into tightly coiled lengths.
  • Step 2: Fill the cups with water. Add yellow food coloring to one cup and blue food coloring to another. Do not add food coloring to the third cup.
  • Step 3: Place the end of one paper towel length in the blue water and the other end in the plain water. Place one end of the other paper towel length in the yellow water and the other end in the plain water. Watch as color from both cups moves into the plain water creating a new color.
  • Step 4: Ask your child why they think the color moved into the plain water. What questions does your child have? Does hot water work differently than cold water, for example, or do some brands of paper towels work better than others and why.

Extensions: Do a few more experiments based on your child’s wonderings.

Bright Horizons
About the Author
Bright Horizons
Bright Horizons
In 1986, our founders saw that child care was an enormous obstacle for working parents. On-site centers became one way we responded to help employees – and organizations -- work better. Today we offer child care, elder care, and help for education and careers -- tools used by more than 1,000 of the world’s top employers and that power many of the world's best brands
color mixing science project for kids to preform from home to observe cause and effect