2 Length Distance or size in one dimension. In the US we use feet, inches and MilesThe metric equivalent is Meters1 M = 3.28 feet1KM = .62 MilesThe diameter of a CD or DVD is 12 cm.A doorknob is typically about 1 m high.
3 Mass Mass is a measure of matter. Often confused with weight. Weight = Mass X Gravity.On earth Mass = WeightIf you go to the moon your mass does not change but you weight does, because gravity is different.100 lbs = 45.4 Kg1 ml of water weighs 1 gram. 1 liter of water weighs kilogram, so 1 cubic meter — 1000 liters — of water weighs 1000 kilograms or 1 metric ton.A US penny weighs exactly 2.5 g, while the nickel weighs exactly 5 g.
4 Area Size in two dimensions 1 square inch is = 6.45 Square cm (cm2) An 8.5” X 11” page is 603 cm28.5 inches11 inches602 cm2
5 VolumeMeasures size in 3 dimensions or how much space an object takes up.1 ml = 1 cubic centimeter (cc)A graduated cylinder is used to measure volume.Always read at bottom of the meniscus
6 Volume of regular objects can be calculated from a few measurements
7 VolumeHow do you measure the volume of an irregular object?
8 Volume How do you measure the volume of an irregular object? Displacement!
9 Density How much matter is contained in a certain volume = mass / volumeIf 1 ml of water weighs 1 gram, what is the density of water?
10 Density How much matter is contained in a certain volume = mass / volumeIf 1 ml of water weighs 1 gram, what is the density of water?1 g/mlIf something is more dense than water it sinks… if it is less dense than water…