SIP Tentative Methodology

Materials needed:

• 10 plastic transparent cups
• 10 small paper plates
• 9 plastic spoons
• Marker
• Juice extractor
• Knife
• Stopwatch 
• Measuring Cylinder

Liquids Tested:

• 100 ml Tap Water
• 100 ml Tap Water + 1 teaspoon of salt
• 100 ml Tap Water + 1/2 teaspoon of salt
• 2 Lemons
• 2 Oranges
• 3 Limes
• 2 Kiwis
• Redoxon (1 tablet)
• Redoxon (1/2 tablet)
• 1 peach

Method:

1. Label all plates and cups with a marker. Arrange everything on the table.

2. Squeeze the fruits using the juice extractor and pour the juice into the cups. 

3. Measure 100 ml of water from the measuring cylinder and pour into the respective cups (tap water, salt water and redoxon). Put the redoxon tablets in gently, making sure not to make the water in the cups spill out excessively.

4. Cut the peaches quickly, and once 10 peach slices are obtained, drop the peaches in carefully into the cups. Put one peach slice  on the control plate.

5. As soon as slices are put in, start timing with the stopwatch immediately.

6. Take the peaches out at 5 minute intervals and place them on the plates. Record their appearance, then quickly put them in the cups again.

7. Repeat step 6 for about one hour.