question: Write a question you would see in a school textbook. OPTIONS:
- Cells
- Bones
- Tissues
- Organs
answer: Which is the most basic unit of living things?

question: Write a question you would see in a school textbook. OPTIONS:
- Sinks are empty.
- Glassware is clean.
- Eye protection is worn.
- Electrical equipment is off.
answer: In the lab, students are working with substances that could cause burns. Which of these safety precautions is most important to follow?

question: Write a question you would see in a school textbook. OPTIONS:
- The Sun burns hotter in the summer.
- The Sun moves below the horizon in the summer.
- The Northern Hemisphere is closer to the Sun in the winter.
- The Northern Hemisphere is tilted away from the Sun in the winter.
answer:
In Alaska, there are fewer hours of daylight in the winter than in the summer. Which statement best explains why this difference occurs?