question: Write a question you would see in a school textbook.
answer: A student leaves a rock in the Sun on a bright afternoon. An hour after sunset, the weather is cool, but the rock still feels warm. The student has demonstrated a property of the rock resulting directly from which of the rock's other properties?

question: Write a question you would see in a school textbook.
answer: Which of the following forms of energy can travel by vibrating particles of air?

question: Write a question you would see in a school textbook.
answer:
Which statement best describes the nature of sound?