TASK DEFINITION: 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.
PROBLEM: Question: Lava flows from a volcano and hardens into what? Answer: rock

SOLUTION: lava flows from a volcano and hardens into rock.

PROBLEM: Question: What type of energy is possessed by autumn leaves before they fall? Answer: potential energy

SOLUTION: Before leaves fall from trees in autumn, they have potential energy. Why do they have the potential to fall?.

PROBLEM: Question: What third property is different if two boxes have the same volume but one has greater mass? Answer: density

SOLUTION:
A: Both boxes have the same volume because they are the same size. However, the books have greater mass than the feathers. Therefore, the box of books has greater density.