Solid fuel
Modern model rocket fuel is a solid fuel.
Yes, yes it will. How it will respond will depend primarily on the chemicals used.
keroscene
A liquid-fuel rocket or a liquid rocket is a rocket with an engine that uses propellants in liquid form.
in the engine
"Model rocket fuel" is basically in the form of single-shot engines. You could, I suppose, strap one to a stick and call it a "bottle rocket", but I don't think it would fly very well (and the engine would likely burn off the stick).
The fuel in a rocket engine contains chemical energy. When the fuel is burned, it releases heat energy that is converted into thrust to propel the rocket forward.
A model rocket usually only holds one engine. The size of the engine and the amount of thrust that you get from varies. Becoming apart of a model rocket organization can help you determine the right engine for your rocket.
The heavier it is the stronger the engine has to be. And the stronger the engine the more fuel will it burn. And the more fuel it burns the more fuel has to be carried in the rocket. And the more fuel the rocket has to lift the stronger the engine has to be.
It is a model rocket engine that has medium strength.
You can't, - it must have an engine block.
A block ring holds the engine firmly in the rocket tube. If not for this, the engine would go up the tube and the rocket would go on fire.