Heat equation

The heat equation is like a game where you try to keep things at the same temperature. It's like when your parents are trying to keep the temperature in your bedroom comfortable so it's not too hot or too cold. In this game, the temperature is like a number that is always changing. The heat equation is like a rule that tells us how the temperature changes when something new is added (like a fan, or the sun coming out). The equation uses numbers to show how hot or cold something is, and how quickly the temperature is changing. The equation helps us figure out how to keep the temperature at the same level all the time.