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An Edible Science Experiment

In this chemistry experiment, children use a Smartie candy to observe the ink splitting into different colors on paper. They learn about capillary action and the properties of hydrophilic and hydrophobic substances. No adult supervision is needed.

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An Edible Science Experiment

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  1. Splitting the Smartie An Edible Science Experiment

  2. Introduction • Area of Science: Chemistry • Grade Range: K-3 • Age Range: 5-7 • Adult Supervision: Not needed

  3. Purpose • To see ink split into different colors

  4. Supplies • Filter paper or blotting paper cut into circles with 15cm diameter • Roll of Smarties • Small cup of water • Paper plate

  5. Safety Keep the experiment on the plate until it dries or you might stain the table or your hands!

  6. Procedures • Place the plate on a flat surface • Place the paper circle on the plate • Place a Smartie on the center of the paper circle • Dip your finger in the water • Slowly drip drops of water onto the Smartie until it is very wet and there is a circle of water around the Smartie about 5cm across • Wait

  7. Conclusion • You should see rings of color spreading out on the paper from the Smartie • Now you can eat your candy!!

  8. Explanation • Capillary Action-Water flowing through the fibers of the paper • Hydrophilic-Water loving; will dissolve in water • Hydrophobic-Water hating; will not dissolve in water

  9. Altenative Materials • Use an M&M instead of the Smartie • Use a felt tip marker to make an ink dot on the paper instead of the Smartie

  10. Resources • http://global.mms.com/us/index.jsp • http://School.com • http://www.smarties.com/ • MadSci Network

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