Given a scientific question and its correct answer, generate supporting facts for the answer. This supporting fact can be an explanation for the answer to the given question.

Example Input: Question: How does burning matter affect its mass? Answer: the mass remains the same
Example Output: Burning and other changes in matter do not destroy matter. The mass of matter is always the same before and after the changes occur.

Example Input: Question: When a balloon is rubbed against hair, why do they attract each other? Answer: opposite electron charge
Example Output: Electrons are transferred from hair to a balloon rubbed against the hair. Then the oppositely charged hair and balloon attract each other.

Example Input: Question: What is the distance something travels in a given amount of time called? Answer: speed
Example Output:
A snail might travel 2 centimeters in a minute. A cheetah might travel 2 kilometers in the same amount of time. The distance something travels in a given amount of time is its speed.