if you tape 3 or 4 rulers together
No it can't go high
the right amount of water to put in a bottle rocket so it will fly high is 70 milliliters
If you have leaks in a water bottle rocket, the pressure will quickly escape along with the water and the rocket won't be able to reach as high an altitude as a rocket without leaks.
i made a bottle rocket and a tire pump for science class and it went high in the sky!
our* stop cheating :)
At high elevations, the force of gravity becomes less.
No, because you need to change something, and measure how high it goes to see how changing one thing can affect the height. For example, if you are using air to launch the rocket, you could change how much air pressure you use, and measure the difference. "How does air pressure affect height?" is a scientific question. Remember if you do this, you must keep everything else the same, or it won't be a fair experiment.
the best psi for launching a bottle rocket high is 65 psi because usually you want it to go high without a big chance of exploding in you face
When you measure it against a middle concentrated solution. If your cup goes up its low concentration if it goes down its high concentration.
yes because a heavy rocket will not go high yes because a heavy rocket will not go high
If the nose is pointy, the rocket will go faster, but if the rocket's nose is flat, it will just travel slower in the lower atmosphere, the height a rocket attains depends on the efficiancy of its engines, the amount of propellant carried and the launch profile. However, for a subsonic rocket (which is what most hobby rockets are) then a curved on not a pointy one is much better. I would suggest looking it up on wikipedia.
Because the high air pressure inside the bottle is trying to go to the lower air pressure outside the bottle, after more air is pumped in until the pressure builds up too much, the bottle rocket will be force into the sky by the air inside it.