Answer:
Test the rocket several times using an identical amount of the same type of propellant.
Step-by-step explanation:
Propellant is a chemical substance which produces energy that is used to move the object in upward direction. The energy that is produced will be emitted in the form of pressurized gases that provides upward thrust. In this experiment, the rocket travels 5 meters in the air after the ignition of propellant, if the Trevon wants to know that the propellant has the ability to move the toy rocket 5 meters in the air so he has to use same amount of propellant for other trials.