TASK DEFINITION: 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.
PROBLEM: Question: Jim puts his water in the oven for later. The molecules in the liquid 
 Answer: speed up

SOLUTION: When a volume of water is cooled, the molecules move less vigorously, so same number of molecules takes up less space and the water is denser.

PROBLEM: Question: If John increases the rate at which gas exits the bottom of his rocket, what will happen to the upward momentum of the rocket? It will 
 Answer: increase

SOLUTION: 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.

PROBLEM: Question: When a child has a little energy they will move around 
 Answer: slower

SOLUTION:
The particles in matter are always moving. The more energy they have, the faster they move.