### Science Fair Project

```SCIENCE FAIR PROJECT
Bottles Rocket
By: Eileen Broome and Megan Bailey
Statement of the Problem
How does the carbonation affect the
height of a bottle rocket?
Project Overview
Megan and I are going to launch bottle
rockets
and see whether or not the one with
carbonation will go higher than the one
with water in it.
Research
 We researched which rocket will go
higher
 The rocket with soda went higher
 We launched both rockets each with
three fins
Variables
 Independent variable: Cola- millimeters
 Dependent variable :Height- feet
 Constant variables- type of bottle, type of
fin, type of nose
 Control group: Water
Hypothesis
If we use cola then the rocket will go
higher because the carbonation will give
more pressure.
Materials
 Duct tape,3 bottles (2 L),
cola, water, rocket
shooter, nose,
notebook, camera, bike
pump, and clinometer
Procedure
 Gather materials
 Build rocket- Cover your rocket in duct tape, to make a nose get a




cone and a ball of rubber or modeling clay and drop it into the cone
,tape your nose on the top of the rocket
Make rocket launcher- get a pump and a tube and attach them
together, get a small part from a water pipe and attach them
together
Test hypothesis- by conducting experiment
Collect data- collect average(see below), and height of all the rocket
launches
Analyze data
 Make graphs, charts, board, etc
.
Photos
Data/Observations (Analyzes)
Water Vs. Cola
Series1
Series2
Times
10
4.73
5.5
2.68
2.5
6.43
5
2.43
0
1
2
Timer
3
Quantitative Observation:
Qualitative Observation:
Building:
Building:
-We used one roll of duck tape
- We used black Duck Tape
-We used one long cardboard like tube - We had a cardboard tube on each rocket
for both of the bottle rockets.
- We stripped our bottle of its label
- We had a wooden on the top of our nose
Launching:
Launching:
-We shot each bottle rocket off once but -The Cola went higher than water
used (3) timers.
- The Water went before Cola
Averaging:
-The average time for water is
2.53666666666667
-The average time for cola is
5.553333333333333
Conclusion
Our data does prove our hypothesis.
The rocket with the carbonation
definitely went higher than the
rocket with water in it. I think the
rocket went higher because there
was carbonation and it egged on the
air and it expanded the bottle so it
had more will to release itself.
Possible Experimental Errors
 There could have been problems in the nose. The duct tape
could have weighed the rockets down. There could not have
been the right amount of pressure. The mass in the nose
couldn’t have been enough mass. The rockets could have
been launched differently.
Applications and
Recommendations
 Suggestions to make the experiment better would to have
pump not just a bicycle pump. It would make it a lot easier. I
would also try to do it on another day. It was a little windy
the day we did it so that could have affected out times.
Something else we could have improved was the identity of
each rocket to make it more like the other.
 Something weird happened after we did our experiment.
Well, we had extra time and decided to launch another
bottle rocket with nothing on it but is had soda that had not
been poured out yet. When we launched it, it went higher
than the others. So that would be a good experiment was it
the less mass that made it go higher or the still fresh soda?
Works Cited

<http://soinc.org/bottle_rocket_b>.

"Bottle Rocket - Science Olympiad Student Center Event Wiki." Web. 13 May 2011.
<http://scioly.org/wiki/Bottle_Rocket>.

"Bottle Rockets." 6th Science. Web. 13 May 2011. <http://www.tclauset.org/21_BtlRockets/BTL.html>.
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