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  • Alison Higginbotham

    Lots of great, easy science projects on this site. The one pictured is called "elephant toothpaste," and requires only a small water or soda bottle, a funnel, hydrogen peroxide, a little dish soap, food coloring, and a packet of yeast. So cool! And the name alone will have kids talking about it for days. It is for the kiddos, but I can't wait to try it :)

  • Audrey KVcc

    MAD SCIENTIST Elephant Toothpaste. Mix desperately: 2 tablespoons of water w 1 tsp Yeast. Add 1/2 cup 6% or higher of hydrogen peroxide. Then pour in your yeast mixture. Quicly add food color drops and squirt of fish soap for bubbles and color. Hydrogen peroxide (H2O2) naturally breaks down into water and oxygen. It is stored in opaque containers to help slow down this process. Catalase (an enzyme in all living things, including yeast) speeds up the reaction. Dish soap catches the ox

  • Tesha D

    Science Experiment: Elephant Toothpaste 1. Set a soda pop bottle in the middle of a pan to catch the toothpaste. 2. Mix these in a separate container and swirl together for a minute. The yeast will catalyze (or speed up) the reaction. Woo hoo! ** 2 Tablespoons warm water ** 1 teaspoon yeast 3. Mix these in your soda pop bottle: ** 1/2 cup 6% hydrogen peroxide. It is important to use at least 6%. You can use 8% or more (available on Amazon), or you can Salon Care Professional Stabilized Formula. 20 Volume Clear Developer from Sally Beauty Supply works fine too. 3% from the grocery store will NOT work as well. :) ** 4-5 drops food coloring ** squirt of dish soap 4. Pour the yeast mixture into the soda pop bottle...and be amazed! If you're working with older kids, you may be interested in how it works: The reaction is summarized by this formula: 2 H2O2 --> 2 H2O + 02. Hydrogen peroxide (H2O2) naturally breaks down into water and oxygen. It is stored in opaque containers to help slow down this process. Catalase (an enzyme in all living things, including yeast) speeds up the reaction. Dish soap catches the oxygen and makes bigger bubbles and the food coloring makes it look cool. The foam and bottle feel warm because the reaction is exothermic--it releases energy as heat.

  • 10.22.t

    baking soda, yeast, water, food coloring= Elephant Toothpaste science experiment.

  • Arianna Wuthrich

    baking soda, yeast, water, food coloring Elephant Toothpaste. fun for kids!

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