Explain Like I'm 5

Gravity is like a big hug from the Earth!

You know how when you hug someone, you feel like you're being pulled towards them? That's kind of like what the Earth does to everything on it, including you! The Earth is like a big ball, and it wants to keep everything close to it, so it pulls on everything with an invisible string. That's what keeps you on the ground and what makes things fall down instead of up. It's like the Earth is giving everything a big squeeze, and that's gravity!