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Elephant toothpaste
118
Elephant
toothpaste
Observations
We think that part of our hypothesis was correct because our experiment was a success. Like we said, it was pretty straight forward. But the part that didn’t turn out to be right was that the experiment wasn’t as drastic as we thought. It was very smooth and calm.The more yeast you add,the elephant toothpaste explodes more.If you add less yeast,it doesn’t explode as much.
Observations
Research
Research
What we found out about elephant toothpaste is that the yeast acts as a helper, to remove all the oxygen from the hydrogen peroxide. Since, it did it very fast it created a lot of bubbles. Also, the bottle got warm! So don’t touch it! This created a reaction called an Exothermic Reaction. Which means it not only created foam but it created heat. Yeast contains an enzyme called catalase. The enzyme is called catalase because it works as a ’catalyst’ in this reaction. A catalyst is a substance that speeds up the rate of a chemical reaction without changing its products. The yeast is added to the hydrogen peroxide to speed up the reaction. The catalase in the yeast speeds up the process of breaking down the hydrogen peroxide and thus produces oxygen and water more quickly. The oxygen gets trapped by the dishwashing detergent as many tiny bubbles.
Hypothesis
Hypothesis
1
We think that the elephant toothpaste will be a success because as we looked on one of the videos on youtube it was pretty straight forward.
2
The dish soap, dry yeast and of course the hydrogen peroxide. We think that the it would be a good experience.
3
Also we predict that the more hydrogen peroxide we add to the elephant toothpaste/project the more drastic the final outcome or the final result would turn out/be.
Ingredients
Ingredients
-3% hydrogen peroxide
-Dry yeast
-Food Colouring
-Water
-Plastic Cups
-Small beakers/Water bottle
-Shoebox/Pan
-Spoon
-Dish soap
Experiment
The Experiment was a success because as we added the dry yeast into the hydrogen peroxide and the dish soap it slowly began to rise. But, it wasn’t very drastic as we thought. The reason why is because we only added/could find 3% of hydrogen peroxide. The foam didn’t explode fast as we thought it took its time and went really slow. It was really fun to see the Elephant Toothpaste rise and the colours were beautiful. It was also very satisfying.
Procedure
1.The beaker is put in a box or a baking pan.
2. The 3% hydrogen peroxide is poured into a beaker.
3.Few drops of food colouring is dropped into the beaker.(optional)
4.A bit of dish soap is added into the mixture and was mixed gently.
5. Water and yeast is mixed together in a seperate cup, for around 30 seconds.
6. Pour only the watery part of the yeast mixture to the beaker and watch the reaction happen.
Conclusion
Conclusion
A chemical reaction is when two molecules interact and they change. Exothermic reactions are reactions that transfer energy to objects around it. It is usually transferred as heat making the mixture and its surroundings hotter.The foam and the beaker became hotter during and after the reaction.