Problem: Write a question you would see in a school textbook.

Answer: Plants transform energy when they make their own food. Which type of energy is used by plants for making food?

Problem: Write a question you would see in a school textbook.

Answer: When water vapor rises and cools, the liquid water in the air comes together forming

Problem: Write a question you would see in a school textbook.

Answer:
A layer of solid brittle rock comprises the outer 100 kilometers of Earth. This layer, which contains both the crust and the upper mantle, is called the