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Published byDonald Carroll Modified over 9 years ago
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Elephant Toothpaste
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Ingredients Detergent Food Colouring Hydrogen Peroxide Yeast
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Hypothesis Tane thought that the red food colouring would change colour. Cam thought it would make a mess. Victoria thought that the red food colouring would turn a rainbow colour. India-Grace thought it would explode.
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Catalyst Zavier guessed that the yeast was the catalyst. A catalyst speeds up the reaction.
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The Steps Put plastic bottle in the middle of a pan. Mix 2 tablespoons of warm water with 1 teaspoon of yeast.
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The Steps Put ½cup of Hydrogen Peroxide in the bottle (6%) 4-5 drops of food colouring. A squirt of dish washing liquid.
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Result
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Ella felt the bottle. It was warm. The bottle was warm because the reaction releases energy as heat.
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The bubbles felt soft. It was warm. It was frothy.
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We loved feeling the froth. It smelt like soap.
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