water rocket test

Answer these questions about your experiment:

1. What is the best number of fins? 3 or 4
2. What happens to the water rocket if you do not have fins? its harder to fly
3. What is the best nose shape? a cone
4. What happens if you have a flat nose shape? it will not cut through the air
5. Does ballast at the nose make any difference? yes it does 
6. What is the right amount of water? a 3rd
7. Explain what happens if you have too much water? it does'int fly high
8. What is pushing the rocket to make it go faster? air pressure
9. Name the 4 forces that effect the water rockets flight? air water weight, thrust
10. What keeps the rocket moving once the water has all come out? the air

If you were to make a water rocket again what changes would you make? better fins