Given the task definition and input, reply with output. 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: On a summer day, a person notes during a science project that the reactants have more energy, so they are now moving 
 Answer: faster

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