Get some cardboard, make a cone, and tape it to the top of the bottle.
You use fins and a nose cone on a bottle rocket because the cone reduces the drag on the rocket, and the fins help stabilize the rocket.
It streamlines the nose.
Foam board or cardboard.
square before you put it together
no
A perfect cone
You would need 6 to 7 construction papers to make a nose cone on a bottle rocket. You would also probably need scissors and a ruler for measurement. You would also need tape for taping on the construction paper. Then just shape the construction papers into a cone and tape it on the bottle rocket.
The best method is to tape the parachute to the side of the bottle and stuff it inside of the nose cone. The nose cone should have string connecting it to the rocket, yet, the nose cone is not actually taped to the bottle. It should balance on: a) Tabs (Cardboard) b) Just have it firmly on top of the top of the bottle This way, the rocket will soar straight up (hopefully), the nose cone will detach (but stay connected), the parachute will fill up with air and expand, and your successful rocket will sink to the ground at about 2-6 mph.
typically the nose cone is filled with a parachute to the rocket arrives on the ground safely.
While a nose cone can either reduce or add drag, it provides a minimal amount of stability to the rocket' flight path. The fins are the most critical component for stabilizing a rocket's flight path; that's where your focus should be.
It streamlines the nose, so the rocket flies faster.
Usually cardboard for the fuselage and a plastic nose cone