Method

I'm going to repeat my experiment about 3/4/5 times, each time with a different amount of bi carbonate soda.

I can't do all the diff levels of bi carb soda in one day because when mixing the batters, the amount of bi carb soda cannot be controlled as there could be extra amounts of bi carb soda on the equipment used for the different batches, so to be able to control the amount of bi carb soda I'm going to bake it at totally different times. The only error is that the temperature/humidity during the time i make it could change and affect the results.

so the method is so far:

1. get all the ingredients and equipment prepared for the experiment

2. bake the muffins using the recipe, don't change anything yet

3. bake for _____ amount of time
4. take the muffins out and leave to cool for 10 minutes

5. measure the height of muffins and record

6. repeat the experiment but change step 2 and change the amount of bicarbonate soda