science fair digital presentation example
DESCRIPTION
Science Fair 15-16TRANSCRIPT
S
Old Faithful
EXAMPLE SCIENCE FAIR DIGITAL BOARD
The science behind the soda and candy reaction
**NOTE: This is NOT an acceptable Science Fair Project Topic
Question
Does the type of soda impact the size of the soda geyser?
Abstract
As seen in popular culture, soda and Mentos creates a instantaneous chemical reaction. The experiment was to determine which type of soda best reacted with the Mentos. To determine the best type, both time length of reaction and amount of soda remaining were tested. The hypothesis that diet coke would produce the best reaction was supported by both the greatest reaction time and least amount of soda remaining.
Hypothesis
If diet coke is used as the soda in the experiment, then the size of the geyser will be the greatest because of the chemical properties of diet coke and Mentos.
Materials
2 Liter bottles of soda ( Diet Coke, Diet Coke with Lime, Diet Pepsi, Fruit, Green Apple, and Sprite)Mint MentosStopwatchGraduated CylinderSafety Goggles
Procedure
1. Wear Safety Goggles2. Place 6 Mentos into the Geyser tube and
attach to the bottle of soda3. Pull the holding pin4. Time the reaction from when the pin is
pulled to when there is no more fizzing5. Measure how much soda is left in the
bottle6. Record data7. Repeat for each type and trials
Procedure
Independent variable: Type of sodaDependent variables: Reaction time and amount of soda left in bottleControl: Standard Diet Coke with mint Mentos
Experimental Pictures
Results: Reaction time
Soda Reaction Time (seconds)
Diet Coke 6.48
Sprite 6.85
Diet Coke (Lime) 5.97
Diet Pepsi 6.05
Results: Remaining Soda Soda Left in Bottle (mL)
Diet Coke 560
Sprite 710
Diet Coke (Lime) 570
Diet Pepsi 650
Graph: Reaction Time
Tim
e (
Sec
ond
s)
Type of Soda
Graph: Remaining Soda
Am
ount
of
Sod
a R
emai
nin
g (m
L)
Type of Soda
Conclusion
The control (Diet coke with mint mentos) had the best reaction, followed closely by Diet Coke with Lime. The worst reaction was the Sprite. The amount left in the bottle was primarily used to determine the quality of the reaction, because the least amount of remaining soda meant the reaction was more successful. Based on this data, the hypothesis that Diet Coke would work the best was
Works Cited
Erupting Diet Coke with Mentoshttp://www.scientificamerican.com/article/bring-science-home-coke-mentos/
The Chemistry of Diet Cokehttp://www.chemistryislife.com/the-chemistry-of-diet-coke