Gravity

Gravity is something that pulls things together and keeps them together. It's like a strong invisible glue, but instead of sticking things together, gravity pulls them together. Gravity is not just something that affects the Earth, but it's all around us. Whenever we jump in the air, it's because gravity is pulling us back down to the ground. And when something falls, it's because gravity is pulling it down. So it's like an invisible force all around us.