Are experiment is in the chemistry branch.
Chemistry is a basic science whose central concerns are
The structure and behavior of atoms (elements)
The composition and properties of compounds
The reactions between substances with their accompanying energy exchange
The laws that unite these phenomena into a comprehensive system
Chemistry is not an isolated discipline, for it merges into physics and biology. The origin of the term is obscure. Chemistry evolved from the medieval practice of alchemy. Its bases were laid by such men as Boyle, Lavoisier, Priestly, Berzelius, Avogadro, Dalton and Pasteur.



staghorn sumac tree

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vitamin c: these are the vitamen c molecules.

external image 200px-L-Ascorbic_acid.svg.pngexternal image 200px-Ascorbic-acid-from-xtal-1997-3D-balls.png

To test for vitamin C, or ascorbic acid, concentration in single strength citrus juices, here is a Vitamin C Determination Method that you can try.

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**Vitamin C** IV Fights Cancer

Are expirement

MY HYPOTHESIS: I think that fresh hand-squeezed fruit juice has more vitamin c in it then regular juice made in factories. the reason why i think fresh hand-squeezed juice has more vitamin c is because they put different ingridints inside off them.


  • Cornstarch
  • 2% iodine solution
  • Tap water
  • Measuring spoons
  • An eyedropper
  • Test tubes
  • A papaya, a kiwi, an orange, a grapefruit, a lemon and a pineapple
  • A bottle of grapefruit, lemon and orange juice from concentrate
  • A blender to obtain the juice from the fruits
  • A stove (make sure to ask an adult for help)
  • Pots


  1. Mix 1 tablespoon of cornstarch into enough water to make a paste.

    To this paste, add at exactly 250 milliliters of water and boil for five minutes.

    Add 5 drops of the starch solution to 30 milliliters of water by using your eyedropper.

    Add 1 drop of iodine to produce a dark purple-blue color. Now your indicator solution is ready.

    Put 5 milliliters of indicator solution (roughly 1 teaspoon) in a 15-milliliter test tube (one for each sample).

    To the test tube, use a clean eyedropper to add 10 drops of juice from your fresh fruits. For solids, pulp them in a blender and strain the juice well. Wash and clean the eyedropper for each sample. Shake well.

    Place all of your test tubes against a white background.

    Line up the tubes from lightest to darkest purple. The lighter the solution, the higher the level of Vitamin C content. That’s because Vitamin C causes the purple indicator solution to lose its color.

Staghorn sumac lemonade: Aka indian juice heres are recipe

• 1 quart sumac berries*
• 1 gallon water
• Optional: maple syrup, cinnamon, cloves
• Cheesecloth or drip coffee filter


• Rinse seedhead and drain on a towel
• Fill a container with cold water
• Put sumac seeds and spices in water
• Set aside at room temperature or in the sun for 1-2 hours
• Remove berries and strain liquid through cheesecloth or coffee filters

*For a Single serving lemonade recipe:

• 2 quarts water
• 1 cup sumac berries
• Flavors of your choice
• Cheesecloth or drip coffee filter
• Use procedure above

Enjoy your staghorn sumac lemonade! Feel free to pass this lemonade recipe on to others...t

the fruits that we're going to use in our experiment:



the result of the experiment.

Pineapple: 15 drops made the solution clear
2nd try 14drops made the solution clear
3rd try 13 drops made little clear but blue dots are still in the solution.
(average 14)

Sumac juice
10 drops made the solution clear
9 drops made the solution clear
9 drops made the solution clear
After 5 drops it started changing

Grape juice
25 drops made solution clear each in every trial.

Average 25

Orange juice
15 drops made it c
17drops made it clear
20drops made it clear
average 17
1st place-sumac
2nd place-pineapple
3rd place-orange juice
4th place - grape juice

*intresting facts
the sumac has the almost 2 times more Vitamin C s then orange juice -_-: