Finalized Idea

I would be conducting the Elephant Toothpaste Experiment

Research Question: Does the amount of hydrogen peroxide used affect the rate/speed of reaction

Materials: Funnel, measuring beaker, hydrogen peroxide, instant dry yeast, dish washing liquid, stopwatch, food coloring, 500ml mineral water bottle

Hypothesis: The more the amount of hydrogen peroxide used the slower the speed of reaction

Variables:
Dependent:Time taken for reaction to be finished

Independent: Amount of Hydrogen Peroxide used

Constant: the amount of soap used, the amount of yeast used, the amount of water used, the amount of food coloring used, the volume and shape of the bottle, the temperature of the water used.

Experiment Procedure:
1. Pour 100ml of hydrogen peroxide into a 500ml water bottle.
2. Add 10ml of food colouring into the 500ml water bottle
3. Add 15ml of dish washing liquid into the same bottle and swish the bottle a bit to mix the solution
4. In a separate cup add 3g of instant dry yeast into 30ml of warm water (approximately 40 degree celsius)
5. Pour the yeast solution into the bottle with the help of a funnel and remove the funnel right after the yeast solution is poured into the bottle
6. Start the stopwatch when the yeast solution is poured into the bottle
7. Record the timing that it takes for the reaction to be complete
8. Repeat steps 1-7 using 125ml, 150ml, 175ml, 200ml of hydrogen peroxide instead.