question: Write a question you would see in a school textbook.
answer: Variation in which property between water at different temperatures contributes most to the formation of horizontal ocean layers having distinct temperatures?

question: Write a question you would see in a school textbook.
answer: Which of these would best be shown as a 3-D model?

question: Write a question you would see in a school textbook.
answer:
After playing outside on a cold day, Jaime went inside to wash his hands. Although the water was normal temperature, he noticed that it felt warmer than usual. What would explain this phenomenon?