question: Write a question you would see in a school textbook. OPTIONS:
- They both examine the history of life on Earth.
- They both make discoveries using optical devices.
- They both study how organisms change over time.
- They both search for evidence about the origins of the universe.
answer: Astronomers and biologists study different areas of science. Many astronomers observe far distant objects in the sky. Many biologists study extremely small objects. What do these astronomers and biologists have most in common?

question: Write a question you would see in a school textbook. OPTIONS:
- a bat flying at night
- a deer drinking water
- an owl eating a mouse
- a squirrel storing nuts
answer: Which animal is preparing for a seasonal change in the environment?

question: Write a question you would see in a school textbook. OPTIONS:
- Top soil loses all of its nutrients.
- Plants begin to grow deeper roots.
- Animals have more food sources.
- Trees become less healthy over time.
answer:
How does acid rain most likely affect forests?