Many people often think that weight and mass are interchangeable words, but they are not. The weight of an object is based on the force exerted on it due to gravity. Mass is how much matter the object is made up of. Mass is not affected by gravity at all. If you were to travel in a rocket ship to the moon your weight would be sixteen and half percent of what it was on the moon. A two-hundred pound man would weigh thirty-three pounds on the moon. His mass will not have changed at all. He still made of the same amount of mass.
This large collection of worksheets will help students begin to grasp the concept of weight and the relative values of weight of objects. Students will also make simple weight calculations. Students will convert between units; estimate the proper units to use, and more.