Explain Like I'm 5

Gravity is like a big hug from the Earth. The Earth wants to keep everything close, so it gives them a big squeeze. That's why you don't float off into space when you're standing on the ground. It's like when you give your favorite teddy bear a hug, you don't want to let go, right? The Earth is like a big teddy bear, hugging everything that's near it. That's why things fall down when you drop them, because the Earth is giving them a big hug.