SRP Proposal

Here is my SRP proposal which I completed last term. I received 11/12 for it and the area where I lost marks was the method because it was not clear as to how I would measure the amount of oxidized areas on the apple. So, to resolve this issue, I diced the apples into small cubes and put 100 of them in each of the bowls so that it is easy to determine which brown squares had oxidized.

Aim	To discover if apples will oxidize when lemon juice, extra virgin olive oil, vinegar and tap water has been spread onto the surface of the apple slices.		1/1
Hypothesis	The lemon juice will have the biggest impact on preventing the apple to turn brown.		1/1
Equipment list (including quantities, brands, sizes)	3x lemon 100 mL of tap water 100 mL of  extra virgin olive oil 100 mL of vinegar 1x sieve 1x pair of tongs 4x bowls (plastic or glass) 1x foil sheet 1x stopwatch or timer		2/2
Risk Assessment	Use recommended template on Enable (print and attach to this proposal)		2/2
Method	All materials were collected and put on the counter table The 4 bowls were spread out across the table The lemon was cut into 2cm slices 100 mL of water was poured in a bowl 100 mL of Extra Virgin Olive Oil was poured in a bowl 100mL of Vinegar was poured in a bowl The apple was cut into 2cm slices   The stopwatch was set to 3 minutes At the same time, 3 apple slices were dropped into each bowl and the timer was started After 3 minutes was up, using the tongs, the apple slices were removed from the bowl and placed on foil The timer was then reset to 180 minutes and the apple slices were left in the shade and the timer was started The apple slices were observed and the amount of brown spots on the apple was recorded		2/3
Outline of variables	Independent	The type of substances used to cover the apples - vinegar, lemon juice, tap water and olive oil.	1/1
	Dependent	The reaction of oxidation. How brown the apples become overtime.	1/1
	Controlled	Type of apple Size of apple slice Amount of liquid substances being exact Environment (if some sun is exposed on the apple slice) Set time or amount of time exposed	1/1