1. MASS

2. Definitions
Mass: an indication of the amount of matter in a substance, calculated in kilograms(kg), grams(g) or milligrams(mg)
Matter: a substance that occupies space and has a mass, all physical objects are made of matter, the smallest unit of matter is an atom

3. Definitions- continued
Balance: an instrument that measures the mass of an object in grams, also known as a scale
Weight:
the vertical force exerted by a mass due to gravity measured in Newtons (N)
measure of how heavy an object is measured in pounds (lb)