Explain Like I'm 5

Gravity is like a big hug from the Earth! It's like when you give your favorite stuffed animal a squeeze and don't want to let it go. The Earth is giving everything on it a big squeeze, and that's what keeps us on the ground and what makes things fall down instead of up. It's like a magic string that pulls everything towards the Earth. That's why you don't float off into space when you're playing outside. The Earth's gravity is keeping you safe and sound!