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# Water rocket .

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Alicia and

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### Water rocket .

1. 1. 1.- BOTTLESWe need two liters soda Then, we cut one ofbottles. the bottles, and we stuck both of them.
2. 2. 2.- FINSWe made them with cardboard, and wedecorated it. After that, we measured thedistance of the bottles to stick it correctly andwhen we finished we stuck them.
3. 3. 3.- 3- parachute PARACHUTEWe took a rubbish bag, we cut it in different ways untilwe got the final result, our parachute.
4. 4. Finally…We took eight threads and we put them onthe parachute as you see… it works!
5. 5. MAKING OUR PARACHUTECutting the rubbish bag Measuring the thread
6. 6. Nose cone 4.- NOSE CONETo make the nose cone we used We used some thread to hold ita blue cardboard. when the parachute opened.We folded it and we got the finalnose cone.
7. 7. 5.- OUR “EGGSTRONAUT”Instead of making an We wrapped it withastronaut, We did an a special paper“eggstronaut” with anegg. because if we didn t do this, it would break and our mission was to find it safe when it came down.
8. 8. 6.- CALCULATING• When we were ready to launch our rocket, we pump it with the gauge and we decided to use 2 atmospheres:• The weight of our rocket was 1.1 kg, so:
9. 9. 7.- EXPERIMENT’S RESULTS• In the first launch, we failed because the water went out, but at the second launch, we got it. The rocket took 1.40 s until the parachute opened and 1.20 s until it landed on the ground, and our egg was save.
10. 10. THEEND. By Ali & Carmen