Explain Like I'm 5

So, you know how things fall down when you drop them? Like if you drop a ball, it falls to the ground?

That's because of something called gravity. Gravity is like a big hug from the Earth. The Earth is giving everything on it a big squeeze, and that's what keeps us and everything else stuck to it.

Imagine you're playing with a big, fluffy pillow. If you put a toy on the pillow, it will roll down to the bottom because the pillow is giving it a gentle hug. That's kind of like what gravity does to everything on the Earth!