Mass: Mass is a measure of the amount of matter in an object. It is an intrinsic property and remains constant regardless of the object's location in the universe. Mass is usually measured in kilograms (kg) or grams (g). In simple terms, mass represents how much "stuff" an object contains. For example, if an object has a mass of 5 kg, it means it contains 5 kilograms of matter.

Weight: Weight, on the other hand, is the force exerted on an object due to gravity. It depends on the object's mass and the acceleration due to gravity at the location of the object. Weight is not an intrinsic property of an object and varies with the object's location in the universe. The weight of an object is measured in newtons (N) or pounds (lb).