Book 1, Question 136
Why Does a Metal Spoon Get Hot? Heat on the Move!
Stir hot soup with a metal spoon and the handle soon feels warm. Heat is moving energy, and metal atoms pass that energy along fast, so the handle warms up after the bowl of the spoon sits in soup. The page says wood and plastic handles stay cooler. With a grown-up, compare a metal spoon and a wooden one after a minute in warm soup.