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Rocketology Baking soda + vinegar = lift off

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by

Xhoana Rexhepi

on 8 December 2014

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Transcript of Rocketology Baking soda + vinegar = lift off

Question:
Key Words

Stoichimentry-

the relationship between the relative quantities of substances taking part in a reaction or forming a compound typically a ratio of whole integers.
Background Research
My project is about chemistry. Chemistry is science that deals with the identification of the substances of which matter is composed. When I add white vinegar to the baking soda, they react with each other because they exchange atoms. In this case, they are exchanging a proton.
Materials
Plastic film canister with a lid and tight seal
scissors
Masking tape or painter's tape
Outdoor space next to a tall exterior wall
Permanent marker
tape measure
Baking soda (1 fresh, unopened box)
White vinegar (1/2 gallon bottle or jug)
Measuring spoon, 1/8 tsp.
Measuring spoon, 1 tsp.
Bowl
Water
Spoon
Safety goggles
Lab notebook
Procedure
First I will put in the 1 tsp of baking soda in the water bottle and then add the 1/8 tsp of vinegar to it. After that I will quickly put the cap on and wait for it to explode, when it explodes I will measure the height. I will repeat this process two more times.
Variables/Constants
Controlled Variable-
1tsp of baking soda

Dependent Variable-
Rocket Height

Independent Variable-
The amount of Baking Soda

rocketology baking soda + vinegar
By: Xhoana Rexhepi

Purpose:

Hypothesis:
Which is the best amount of baking soda that will get the highest launch possible?
I want to find out what will be the best mix of baking soda that I will get the highest launch possible.
If I increase the amount of baking soda then the rocket height will increase because the more of the substance that is added the higher the rocket will go.
Baking Soda
Safety
What I will be needing for my safety is Goggles and Adult Help
Vinegar
Observations
Data/Results/ graph
Conclusion
Pictures of Experiment
Then I will try this with different amounts of baking soda the amounts are 2 tsp and 3 tsp of baking soda. Then I will do the same of three repeated trials until I get the average during the experiment I will also be taking notes and observations.
When the baking soda and vinegar mix together it becomes bubbly.
The color is white
The water bottle seems to become full of air.
While the water becomes full of air the water bottle becomes harder.
When the top pops up in the air it is really sudden because you don't know when it will happen and it also makes a puff sound.
If I add more baking soda to the vinegar the height will increase. During this project I learned that the more baking soda you add the height of the rocket will decrease. Here are some some of the observations and data that led me to this conclusion, while the top went up and for 1tsp of baking soda it went really high (9 in) for the one with 2tsp the height was 6 1/2 inch and for the last one 3tsp was 5 inches. As you can see the height keeps on decreasing. Which is also telling me that my hypothesis was wrong.
http://scienceline.ucsb.edu/getkey.php?key=4147
Full transcript