question: Write a question you would see in a school textbook. OPTIONS:
- Who will be the winner of the next lottery?
- What football team will win the next game?
- What is the amount of light needed to grow tomatoes?
- Which four types of bird feathers have the prettiest colors?
answer: Which question can most likely be determined through a scientific investigation?

question: Write a question you would see in a school textbook. OPTIONS:
- water
- vinegar
- salt
- formaldehyde
answer: Which substance should a student apply to the skin if he or she gets splashed with an acid?

question: Write a question you would see in a school textbook. OPTIONS:
- volume.
- weight.
- mass.
- size.
answer:
The gravitational force exerted by an object depends on its