In this task, you are given a question and answer for that. The answer will fill in the blank or will complete the unfinished question. Your task is to provide an explanation based on the given question or fill-in-the-blank statement, and answer.

Question: If Mona is creating a reaction using solid reactants and she decreases the surface area of those reactants, what happens to the reaction rate? 
 Answer: decreases
Therefore, increasing the surface area of solid reactants increases the reaction rate.

Question: Will launches a rocket off the ground. As the speed of the gas that comes from the boosters increases, the rocket's height reached 
 Answer: increases
The rocket goes upwards because the hot gases shoot downwards out of the nozzle. The faster the gases go downwards, the faster the rocket goes upwards.

Question: On a winter day, a person notes during a science project that the reactants have less energy, so they are now moving 
 Answer: slower

At higher temperatures, particles of reactants have more energy, so they move faster.