Question

Patti used a steel wrench to work on her bicycle on a hot, sunny day. She left the wrench on the hot concrete surface for an hour while she had lunch. When she returned, the wrench was very hot to touch. What is the BEST explanation for how the wrench got so hot?

Answer 1

The wrench got so hot because of the sun heating up the steel combined with the heat of the hot concrete, and so it was unable to touch.