1. 2 Soda Bottles (2L)
2. Construction Paper
3. Tennis Ball
4. String (yarn or something that is durable)
5. Large Garbage Bag
6. Shoe Box (tough, preferably cardboard)
9. Glue Gun
11. **Baby Powder (picture 1)
o Change cone head to plastic, more aerodynamic
o Created more of a body using another soda bottleo Use 2 wings instead of 3
o Make parachute larger, using a black bago The best way to maximize the trajectory is to launch your water bottle rocket at a 45-degree angle. This will give you the maximum range.
o When you pack the parachute, don't roll the lines around the parachute. Fold the parachute until it fits where it need to, and gently accordion-fold the lines. make the parachute open faster.
Rocket: Air is pumped into the bottle rocket to pressurize the bottle and thrust is generated. When the string is pulled, water shoots out propelling the rocket to great heights because the weight of the bottle rocket is constantly decreasing. As the water leaves the rocket, the volume occupied by the pressurized air increases.
Parachute: The amount of air resistance (as explained by Newton’s second law of motion) depends upon the mass of an object. In the case of our tennis ball, this object will have more acceleration until the parachute is released and it encounters air resistance equal to its weight.