Indeed they do! There are a few primary forces that affect a rocket's flight, and one of those forces is drag. Aerodynamics is basically how drag affects an object in motion, and making something "more aerodynamic" means building it in such a way that it has less drag. The less drag something experiences, the faster (and in the case of model rockets, higher) it can go.
Fins on a rocket affects its flight by the way they are built on the rocket
Incredibly ! -In rocket flight streamlining is the single most important factor.
it affects how far the rocket will fly
it helps protect its cover
TwoIts not going to affect your home value much.they affect the stability of th rocket flightAntarctica is not on any commercial flight paths
It can. The design of the fuselage could affect the range: a long fuselage may be less rigid and so reduce the range. However, the fuselage needs to contain all the fuel and if the fuselage is too short the model may not contain much fuel. Alternatively, the fuselage will be short and squat which will reduce its aerodynamics and the increased drag will reduce the range.
Weight is a killer in terms of altitude.
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.
A small rocket might go higher because a smaller rocket has less weight
The length of a wing will affect the flight motion. The shape of the wing is also another factor that affects the speed of the flight.
Of course. Your construction and fin alignment must be as near perfect as you can make it.