Explain Like I'm 5

Gravity is like a big hug from the Earth!

Imagine you're playing with a ball on the playground. If you throw the ball up in the air, what happens?

It comes back down to the ground, right?

That's because the Earth is giving the ball a big hug! The Earth wants to keep the ball close, so it pulls it down towards itself. That's gravity! It's like a magic string that pulls everything towards the Earth, so we don't float away into space. Isn't that cool?