1. stem fair project
By Nathan Hurley

2. Which fruit juice is the most dense - fruit punch, grape juice or pear juice?
QUESTION

3. The fruit juice with the highest sugar serving size ratio is the most dense.
HYPOTHESIS

4. Compute sugar serving size ratio for each fruit juice being tested.
Pour a small amount (about one inch) of one juice into a glass with a small diameter.
Using a dropper, slowly add a different juice by carefully dropping it down the inside of the glass.
Rinse out the dropper.
Repeat step #3.
EXPERIMENT

5. sugar (g) serving size (fl.oz.) ratio
Fruit Juice
sugar (g) serving size (fl.oz.) ratio
Fruit Punch
3.04
Pear Juice
3.625
Grape Juice
4.5
ANALYSIS

6. We added about an inch of pear juice to the glass
We added about an inch of pear juice to the glass. Then we slowly added some grape juice using a dropper. The grape juice sank to the bottom and made a layer below the pear juice. After rinsing out the dropper, we slowly added some fruit punch to the glass using a dropper. The fruit punch stayed on top of the pear juice.
ANALYSIS

7. Analysis Grape juice on bottom, pear juice on top
Fruit juice layered on top of pear
juice and grape juice
Adding grape juice to pear juice
Analysis

8. Of the juices tested, grape juice was the most dense and fruit punch was the least dense. This confirms our hypothesis, as grape juice had the highest sugar serving size ratio (4.5) and fruit punch had the lowest sugar serving size ratio (3.04).
conclusion