Mass

What is mass? Mass is not the same as weight! It is a measurement of how much matter is in something. So we know what matter is, it is everything basically. Back to mass. It is usually measured in kilograms. To get mass to weight there is a lot of hard math. Weight is the measure of the force of gravity on an object. The mass of an object will never change, but the weight of an item can change based on its location!”- (http://www.ducksters.com/science/physics/mass_and_weight.php) For example if something on earth had mass and we put it on mars the mass would stay the same. Thank you for reading.