Explain Like I'm 5

Ooh, gravity is like a big hug from the Earth!

You know how when you give your favorite toy a big hug, you pull it close to you? Gravity is like the Earth giving everything on it a big hug. It pulls everything towards itself, so you don't float away into space.

Imagine you're playing with a ball on the playground. You throw the ball up in the air, and what happens? It comes back down to the ground, right? That's because the Earth is giving it a big hug with its gravity. It's like the Earth is saying, "Come on, little ball, come back to me!"