Heat is a form of energy that people are very familiar with. Heat makes our homes warm in winter and it helps us prepare food for dinner. Heat can also be dangerous, such as when a fire destroys a home or forest. Readers will learn the physics behind the transfer of heat from one object to another, whether it''s the sun warming our world or a stove burner heating water. Readers also explore how a change in temperature can change the characteristics of matter. The manageable text is paired with eye-catching images and primary sources to support reader comprehension.