Transcript STEM FAIR PROJECT - Prince George's County Public Schools

STEM FAIR PROJECT
Project title: Lime Juice Rocket vs Lemon Juice Rocket.
By: Xiani Carpenter
Ms Daskivich/ Northview Elementary
STATEMENT QUESTION
• The goal of my project is to determine which fruit juice mixture will
make a cork fly farthest
Variables:
Controlled Variables: Variable that doesn’t change
• Two liter soda bottle
• One teaspoon of Baking soda
• Water
• Corks
Independent variable: Variable that’s purposely changed and tested.
• Lemon Juice and Lime juice
Dependent variable: The measure of change observed because of the
independent variable.
• Change will be measured by how far the corks fly.
HYPOTHESIS
• I predict that the Lemon Juice Rocket will fly farther then the Lime
Juice Rocket
MATERIALS
-Two empty two liter soda bottles
-Two corks
-Two pieces of tissue
-One teaspoons of baking soda
-Half an inch of Lemon and Lime juice
-Water
PROCEDURE
1. Fill one bottle with half an inch of Lemon Juice.
2. Fill one bottle with half an inch of Lime Juice.
3. Add water to the bottles until just under half way.
4. Wrap one teaspoon of Baking soda in a tissue
and drop one into each of the bottles.
5. Secure corks in the top of the bottles and shake them up.
6. Hold bottles away from your face and wait for corks
to pop out.
7. Repeat steps with each bottle 3 times.
DATA/OBSERVATIONS
14
12
10
8
6
4
2
0
Lime Juice
Lemon Juice
1st Launch
2nd Launch
3rd Launch
CONCLUSION
• Lemon juice wins
RESEARCH
• Summarize your research here in three to five bullet points:
- Lemon and Lime Juice are acidic fruit
- Lemon Juice is one percent more acidic then Lime Juice.
- Lemon Juice combined with Baking soda produces more carbon
dioxide gas the Lime Juice and Baking soda
WORKS CITED
• Reference:
1. USDA National Nutrient Database for Standard Reference Last Modified Dec 7, 2011
2. Endourol. Author manuscript; available in PMC 2009 February 9.Published in final
edited form as: J Endourol. 2008 March; 22(3): 567–570.
doi: 10.1089/end.2007.0304