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

Answer: In a mixture, a magnet is used to separate some particles from sand. The dark particles are most likely made of which element?

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

Answer: Nerve cells transmitting messages to the body best demonstrate which primary function?

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

Answer:
Ice cream in a bowl changed from solid to liquid in a few minutes. Which of the following most likely caused this change?