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Published byRobert Howard Modified over 2 years ago

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The Metric System The scientific system of measurement The International System of Units (SI) Based on the number 10 and multiples of 10

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Length Distance between two points Meter (m) = basic unit of length = 39.4 inches Metric rulers and meter sticks used to measure

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Meter stick -- 1 meter or 100 cm or 1000 mm long Metric ruler cm or 300 mm long

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Volume The amount of space an object takes up Liter = the basic unit of volume (L) Cubic Centimeter (cc or cm 3 ) – used to measure the volume of solids

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1 ml = 1 cc = 1 cm ml = 1 L

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Liquid: Measured with graduated cylinder Meniscus -- the curved surface of a liquid in a graduated cylinder. Read the bottom of the meniscus.

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Irregular solid: Measure out some water in the cylinder. This is volume 1. Drop the solid into the liquid causing the water level to go up. This is volume 2. Subtract volume 1 from volume 2 to get the volume of the solid.

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Solid: volume = length x width x height

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Mass The measure of the amount of matter in an object Kilogram (kg) = basic unit of mass Measured with balance

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Density The mass per unit volume of a substance Density = Mass Volume Density of water = 1 g/mL

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Objects with density less than 1 g/mL float on water. Objects with density more than 1 g/mL sink in water.

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Temperature Celsius scale is usual measurement but SI unit is Kelvin The Kelvin temperature can be found by adding 273 to the Celsius reading

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Water freezes at 0 o C Water boils at 100 o C Body temperature = 37 o C Room Temperature = 21 o C Temperature is measured with a thermometer

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Time The interval between two events Measured in seconds

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