Here's why:
* Gravity is a force of attraction between objects with mass. The more massive an object, the stronger its gravitational pull.
* The moon has significantly less mass than Earth. This means its gravitational pull is weaker.
* Weight is a measure of the force of gravity on an object. Since the moon's gravity is weaker, you experience a smaller gravitational force, making you feel lighter.
To be precise, the moon's gravity is about 1/6th that of Earth's. This means you would weigh about 1/6th of your weight on Earth when you are on the moon.
