Science: An Elementary Teacher’s Guide/Mass vs Weight

Mass

Mass is the quantity or property of matter. Mass is usually measured in grams and kilograms. The more mass an object has the harder the mass is to be moved it. Mass and weight does not have the same units.

Weight is related to gravitational field. The weight of an object depends on the mass. In some parts of earth the gravitational force can pull the weight making the weight heavier than in other parts of Earth. Weight can change according to where the object might be in Earth, but mass does not change. Weight also change from planet to planet. An object that is heavy on Earth will be much lighter in Mars.

Formula

W=mg

W= Weight m= Matter g=acceleration due to gravitaty