Explain Like I'm 5

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

Imagine you're playing with your favorite toy on the playground. If you throw it up in the air, what happens? It comes back down to the ground, right?

That's because the Earth is pulling on your toy with an invisible force called gravity. It's like the Earth is giving your toy a big squeeze, saying "Come back here, I want you to stay with me!"

Gravity is what keeps us on the ground and what makes things fall down instead of floating off into space. And it's not just the Earth that has gravity - all big things in the universe have it too!