How does heat distribute across surfaces?

Heat moves from one place to another just like water flows from a full glass to an empty one.

Imagine you're holding a hot chocolate cup on a cold day, the warmth goes from your hands into the air, and your hands start to feel cooler. That’s how heat spreads out over surfaces, like a warm hug that gets thinner as it moves away.

1. Heat moves from hot spots to cool spots.

Think of a pan on the stove, the part touching the fire gets hottest first, and then the heat slowly moves out to the whole pan, just like how your feet get warm when you step onto a heater.

1. Surfaces act like roads for heat.

If you put a metal spoon in hot soup, it gets warm quickly because metal is a good "heat road." But if you use a plastic spoon, it takes longer, plastic is a slower path for heat to travel.

So, when something is warm, the heat moves out across its surface like a ripples on water, getting cooler as it goes.