Metric Mass (Weight)

Mass: how much matter is in an object. We measure mass by weighing, but Weight and Mass are not really the same thing. The most common measurements: Grams Kilograms Tonnes Grams Grams are written as g (for short), so 250 g = 250 grams Kilograms 1 kilogram = 1,000 grams Kilograms are written as kg