question: Write a question you would see in a school textbook.
answer: A student provides the following directions for brushing teeth: Turn on the water. Fill the glass with water and leave the water running. Put toothpaste on the toothbrush. Brush for two minutes. Rinse mouth with the water from the glass. Rinse the toothbrush with the running water. Turn off the water. Which change in these directions would conserve the most water?

question: Write a question you would see in a school textbook.
answer: Modern technology has had some positive and negative effects on society. Which would be a negative effect of advances in technology?

question: 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?