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Home School Life Journal
"Let us strive to make each moment beautiful."
Saint Francis DeSales
painting by Katie Bergenholtz

Secret Formulas: Making Toothpaste

We have finally finished making our secret formulas of toothpaste. The kids had to choose how much of each ingredient to add, based on the testing we had done. Each ingredient (calcium carbonate, a mixture of 3 parts baking soda to 1 part salt, glycerin and soap {Ivory Snow}) has strengths and weaknesses and they had to choose how much of each ingredient to add based on which qualities (taste, texture, sudsing ability, cleaning ability) meant the most to them. They also had a lot of flavors to choose from. We just used regular McCormick's flavorings (coconut, cinnamon, peppermint, lemon, vanilla, chocolate to name a few). No sweetners of any kind were added.

Quentin writes down what he has put in.
Sam decides how much to add.
Katie mixes her formula.
Alex adds water to his mixture Quentin product tests.
The results are that none of them were ready to turn in the store bought toothpaste for their own creations, but they had a better understanding about what factors go into making a good toothpaste.


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4 comments:

  1. Interesting project! It looks like fun.

    ReplyDelete
  2. So what flavors did most of them add?

    This is such a fun project!

    ReplyDelete

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