question: Write a question you would see in a school textbook.
answer: A science class investigated the percentage of corn kernels that pop in bags of different brands of popcorn. Fifteen students tested three brands of popcorn each and reported their results to the class. Why did the teacher most likely have so many students report the results?

question: Write a question you would see in a school textbook.
answer: The length of daylight changes as the seasons change during the year. What causes these changes in daylight?

question: Write a question you would see in a school textbook.
answer:
Mark wants to make lemonade for his friends. He uses water, lemon juice, and sugar. Which of these best describes the lemonade?