science report

Aim:
To find which combination works best to make a reacting rocket out of either bicarbonate soda and vinegar, bicarbonate soda and lemon juice or bicarbonate soda and brown vinegar.
Hypothesis:
I predict that the bicarbonate soda and vinegar or brown vinegar will work better than the combination with bicarbonate soda and lemon juice. The reason being is because both vinegars we will be using has more acid than lemon juice.
Materials:
1. X3 plastic bottle (one bottle each)
2. X9 W=4cm H=2cm Duct tape (three for each rocket)
3. X6 teaspoon of bicarbonate soda (two for each rocket)
4. ½ a cup of brown vinegar (for one rocket only)
5. 1 cup of water (for each rocket)
6. X9 HB grey led (three for each rocket)
7. X3 piece of paper towel (one for each rocket)
8. ½ a cup of lemon juice (for one rocket only)
9. ½ a cup of white vinegar (for one rocket only)
10. X1 cork (use for the three rockets)

Method:
1. With the duct tape stick the three pencils 2cm away from the lid in a triangle shape.
2. Put water and vinegar in the plastic bottle
3. Dump the bicarbonate soda evenly distributed in the middle of the paper towel
4. Fold up the paper towel
5. Get your plank of wood and screw the screw in the middle of the plank
6. Twist the cork into the screw
7. Put the paper towel with the bicarbonate soda inside it into the bottle and quickly place the cork in the bottle and turn the rocket upside down and run back away from the rocket and soon it will fly

Observation:
First rocket (lemon juice and bicarbonate soda) did not work and went half the height of what we planned which was 50 feet knowing I have already done this experiment.
Second rocket (Brown vinegar and bicarbonate soda) went all right but we had to shake it which is another variable.
Third rocket (White vinegar and bicarbonate soda) went all right but I did have to shake which again is another variable and hit me in the leg when shaking.
Discussion:
Me and ziggy discussed how all of the experiment were pretty much fails. With the first rocket there was a hole in the cork so all the mixture was coming out. With the second rocket we got a new cork but it was too big and the stands were in the air so the cork had to balance the bottle on the cork which would not work knowing that corks have rounded heads. With the second one it was basically the same as the second because it did everything the same accept that I had to shake the rocket which made the rocket fly up and hit me in the leg because I forgot to step away from the rocket.
Discussion:
Me and Ziggy discussed how all of the experiment were pretty much fails. With the first rocket there was a hole in the cork so all the mixture was coming out. With the second rocket we got a new cork but it was too big and the stands were in the air so the cork had to balance the bottle on the cork which would not work knowing that corks have rounded heads. With the second one it was basically the same as the second because it did everything the same accept that I had to shake the rocket which made the rocket fly up and hit me in the leg because I forgot to step away from the rocket.

Conclusion:
In my hypothesis I said that the brown or white vinegar would work better than the lemon juice but unfortunately all the rockets did not work from the equipment. Next time I will go through all the equipment and make sure it will work and test the rocket. With the corks he first one had a hole in it which let all the mixture come out of the rocket. For the second rocket the cork was too big and had to balance the rocket so next time I have to make sure that the cork is smaller than the sticks so the sticks can balance the rocket. For the third rocket the cork was also too big and would not balance the rocket.

bibliography:
date 22/6/2016 https://en.wikipedia.org/wiki/Vinegar
date 22/6/2016 https://www.google.com.au/?ion=1&espv=2#safe=strict&q=what+is+in+vinegar
date 20/6/2016 http://www.madehow.com/Volume-7/Vinegar.html

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