Procedure

1) Labeling

At your station there should already be two cups labeled and filled with orange Kool-Aid and orange juice. Label the remaining two cups.

Cup 1: Vitamin C Test/ Kool-Aid

Cup 2: Vitamin C Test/ Orange Juice

2) Prepare the Vitamin C Test Cups

Cup 1

a) Fill Cup 1: Vitamin C Test/ Kool Aid ¾ full of water.

b) Add spray starch until the water looks milky or cloudy.

Cup 2

a) Fill Cup 2: Vitamin C Test/ Orange Juice ¾ full of water.

b) Add spray starch until the water looks milky or cloudy.


Raise your hand and let the teacher know that you are ready to have 4 drops of iodine added to Cup 1 and 2. Mix well and make sure the solution turns blue.

3) Test Reaction

Cup 1

a) Using the cup labeled orange Kool-Aid, take the eye dropper and add one drop at a time of orange Kool -Aid to cup 1 and stir with the spoon. Add another drop of Kool-Aid and stir. Keep adding drops and stirring until the mixture turns clear

b) Record the amount of drops it took for the mixture to turn from blue to clear.

Cup 2

a) Using the cup labeled orange juice, take the eye dropper and add one drop at a time of orange juice to cup 2 and stir with the spoon. Add another drop of orange juice and stir. Keep adding drops and stirring until the mixture turns clear

b) Record the amount of drops it took for the mixture to turn from blue to clear.

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