Question: How Much Water To We Have To Have

Question: How much water to we have to have in the base in order for the rocket to fly 100 meters? Hypothesis: If we use more water then it will go higher because there is more force on the bottle. Data: The water amount depends on how high it will go. Water amount (ML) Trial 1

Trial 2

Trial 3

Average

400

65

64

80

69.6

100

70

80

80

76.6

600

85

85

85

85

800

100

105

100

101.6

1000

90

85

87

87.3

Source: Whitney, Kelsey, Jenna

Graph:

The distance depends on the water in the body 102.5 100

distance traveled

97.5 95 92.5 90 87.5 85 82.5 80 77.5 75 72.5 70 67.5 100

200

300

400

500

600

700

800

900

1000

Mililiters

Controlled Variables: Same bottle, Same wings, Same position on the Bottle, Same water in the top, same air pressure 75 psi

Materials: Pop bottles (20oz & 2 liter), controlled rocket, Water, Ruler, Sharpie, air. Procedures: Controlled Rocket:

30º angle wings No Paper 100 ml in nose

400 ml in body 10 X 5 wings middle equally spaced. Our Rocket: We first make our controlled rocket. Then we change the amount of water in the base and add 100 ml of water in the top of the bottle. Attach the 20 oz water bottle to the top with water in it. Add the water in the base that will be changed. Then put on the launch pad secure the clasp on the bottle, and turn on the air and once it is full turn it off. Now step back, and yell launch and record data.

Conclusion: 800 ml of water went the farthest. This this tells us that the more water the more force it has on the rocket which makes it go farther in the air. If we would have had more time then we could of tested 900 because our highest data was 800 and second highest is 1000.