question: Write a question you would see in a school textbook. OPTIONS:
- webbed feet on a duck
- migration of songbirds
- sharp eyesight of an eagle
- camouflaged colors on a frog
answer: Amanda is learning about different adaptations of animals. Which is an example of a behavioral adaptation?

question: Write a question you would see in a school textbook. OPTIONS:
- Iron is twice as dense as aluminum.
- Atoms of aluminum are smaller than atoms of iron.
- Using equal masses results in similar heat capacities.
- The specific heat of iron is less than that of aluminum.
answer: A 10 g sample of aluminum and a 10 g sample of iron were each heated by 100 joules of energy. The temperature of the aluminum sample rose 11C, while the temperature of the iron sample increased 23C. Which statement best accounts for these results?

question: Write a question you would see in a school textbook. OPTIONS:
- dishwasher
- refrigerator
- electric mixer
- microwave oven
answer:
Which invention has technology that helps people keep food fresh for a long period of time?