Heat affects humans in the same way. Two years ago many elderly were dying or being hospitalized for heat stroke during a hot streak in Chicago. The word heat is often used in our everyday language for different things. People often complain that their car is overheated in the summer. In the winter, people let their car heat up before driving.
Heat is very important in cooking.
Meats need to be cooked at the right amount heat to kill harmful bacteria like e.coli. Benchmarks for Science Literacy gives some incite on what children think about heat as they grow and learn more. Heat is difficult for some students . They become stuck on the idea of a thermometer. K-4 need to learn that heat is everywhere.