Brainstorming Ideas

Today I decided to brainstorm some ideas for my SRP. These ideas included:

-Which substance keeps apples the freshest for the longest amount of time
-If the angle of a shot taken in basketball affects the chance of getting it into the hoop
-From which liquid can the purest water be extracted (Water Filtration) 
-Determining the effectiveness of different amounts of sugar as preservatives for flowers

With much consideration and thought I have decided to test the problem 'From which liquid can the purest water be extracted (Water Filtration) '. I feel as though this experiment is very interesting, complex and uses a wide range of scientific techniques. I did not choose the other experiments as I felt they were either too easy or did demonstrate my full scientific ability. I look forward to completing this experiment to the best of my ability.