How does temperature change with depth?

When you go deeper underground, it gets warmer, just like when you go deeper into a hot bath.

Imagine you're in a big, cozy hot bath, the water is warm all around you. Now, if you dive deeper, you'll feel even hotter because the water is warmer at the bottom. That’s kind of what happens underground. As you dig down through layers of dirt and rocks, it gets warmer, just like going deeper into a hot bath.

The Earth is like a big oven that's been baking for a really long time. The heat from inside the Earth moves up toward the surface, and as you go deeper, you get closer to this warm, baked center.

Think of it like layers of cake, each layer gets warmer as you move toward the middle. So when you dig down into the ground, it's like moving toward the warmest part of a big, slow-baking cake.

Every time you go about 30 meters (that’s like digging down the length of 10 school buses), it gets about 5 degrees warmer. So if you dig really deep, maybe all the way to where the Earth is warmest, you’d feel like you’re in a cozy, warm bath at the bottom of a big cake!