Given a scientific passage and an answer, generate a question for the given answer.
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Question: Passage: form of mechanical weathering that occurs as water expands when it freezes, wedging apart rock. Answer: mechanical weathering

Answer: What term describes weathering that occurs as water expands when it freezes, wedging apart rock?


Question: Passage: the fact that stars are made up of very lightweight hydrogen gas. Answer: hydrogen

Answer: What type of gas are stars made up of?


Question: Passage: The diver has energy because of her position high above the pool. The type of energy she has is called potential energy. Potential energy is energy that is stored in a person or object. Often, the person or object has potential energy because of its position or shape. Answer: potential energy

Answer:
What energy is stored in a person or object?


