The 4 factors
The facors that affect a rate of reaction are: temperature, concentration, surface area and a catalyst.
By increasng the temperate you are increasing the kinetic enegery(speed and movement) of the reacting particles so they collide more frequently and use more energy which increases the rate of the reaction
Imcreasing the concentration of reactants in a solution will increase the frequency of collisions.
Increasing the surface area of one of the reactants will increase the number of collisions between particles.
A catalyst is something that speed up the reaction but does not get used up during the reaction