Can You Really Fry an Egg on a Hot Sidewalk?

Words to Know

**Heat transfer**

Heat moving from a hotter thing to a cooler thing

"Heat transfer from the sun warms the sidewalk."

**Conductor**

A material that passes heat along really well

"Metal is a conductor — it heats up fast."

**Temperature**

How hot or cold something is, measured in degrees

"The sidewalk's temperature can reach 150 degrees!"

**Surface**

The outside, top layer of something

"The sidewalk's surface gets much hotter than the air."

**Insulator**

A material that does NOT pass heat along well

"Concrete is a weaker conductor than metal — more of an insulator by comparison."

Check What You Learned