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: What is a simple machine that consists of a rope wrapped around a grooved wheel? Answer: a pulley

SOLUTION: A pulley is a simple machine that consists of a rope wrapped around a grooved wheel. Pulleys are generally used to lift a load.

PROBLEM: Question: What do you call the electrons in the outermost energy level of an atom? Answer: valence electrons

SOLUTION: Electrons in the outermost energy level of an atom are called valence electrons. They determine many of the properties of an atom, including how reactive it is.

PROBLEM: Question: All cells need what for processes like active transport? Answer: energy

SOLUTION:
All cells, including both plant and animal cells, need energy for processes such as active transport. How do cells obtain the energy they need?.