(1) - A rocket burns a fuelthat makes a great deal of gas atthe back of the rocket.P.Ordinary fuel will bum only inair - because it need£ the oxygenin the airQ. A rocket can therefore traveloutside the atmosphere in spacewhere there is no air.R. This gas pushes against therocket and sends it forward.S.However - rocket fuels havetheir oxygen in them and so theyburn without air.(6).In fact - it will travel faster inspace than in the air because thefriction of the air is not there toslow it down.