Explain Like I'm 5

Yay! Gravity is like a big hug from the Earth!

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

That's because the Earth is pulling on the toy with an invisible string. It's like the Earth is giving the toy a big hug, and the toy wants to stay close to the Earth's hug.

That's gravity! It's what keeps us on the ground and what makes things fall down instead of floating off into space. Isn't that cool?