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Fun Biology Science Project for Kids - An edible skin model that is made with Rice Krispie Treats and candy.

Updated on June 25, 2012

Finished Project

Getting Started

My kids and I made this yummy skin model a year ago and it was a hit. To get started you will need to gather a few supplies:

  1. Enough Rice Krispies, butter, and marshmallows to make 4 recipes of Rice Krispie Treats.
  2. A large baking pan to for the Rice Krispie Treats to harden.
  3. Colored Twizzlers
  4. Some type of candy or chocolate to form the hair shaft. We used a Rolo type candy.
  5. Red food coloring
  6. The The Human Body (The Wonders Inside) book or some other book with a good example of a skin model.

To start prepare two batches of Rice Krispie Treats and place it in the large baking pan to harden. Make sure the pan is well greased because you will want the Rice Krispie Treats to come out in one piece. While you are waiting for that to cool you can cut up the Twizzlers into thinner strips. It was much easier to cut up the Twizzlers using scissors than a knife. If you use Rolos you can cut those in half as well.

Assembling the Model

The Twizzlers represent arteries, veins, sweat glands, and nerves. We made our model with two layers. For each layer we spread out the Twizzlers to represent the different parts of our skin model. In the picture above you will see us working on the first layer using the book The Human Body (The Wonders Inside) as our guide. Once the first layer was complete we added the second layer of Rice Krispies. If you don't want to wait for the second double batch of Rice Krispie Treats to harden make them as soon as the first batch is removed from the pan.

Painting with food coloring

Finishing up

Once all the parts were assembled we painted a darker portion near the top of our skin model to represent that part of the epidermis. I just mixed some food coloring with water in a cup and my kids painted it on the model. I stuck a few extra half rolos at the end to represent more hair when we were done. It was fun to make and fun to eat. Eating it also gave us many chances to remember different parts of the skin model. Who would want to pass up the silliness of chomping down on a sweat gland anyway?


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    • iijuan12 profile image


      4 years ago from Florida

      This looks like such a fun project! We are just finishing up our unit on the human body. We made edible skin models using fruit and jello. I bet the kids would have enjoyed your version quite a bit more!

    • profile image


      6 years ago

      Also check out for some more fun science project ideas. I use it often...


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