Explain Like I'm 5

Oh boy, gravity is like a big hug from the Earth!

You know how when you're playing outside and you throw a ball up in the air, it comes back down to the ground? That's because the Earth is pulling on the ball with an invisible string. This string is what we call gravity.

Gravity is like a big, strong arm that pulls everything towards the Earth. That's why you don't float off into space when you're standing on the ground. It's also why things fall down instead of up. The Earth is giving everything a big hug, and that's what keeps us on the ground!