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Published byHortense Fitzgerald Modified over 4 years ago

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Metric System International System of Units (SI)

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Length, Area, and Volume

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Length Measured in: meters (m) Also uses: Centimeters (cm) Millimeters (mm) Kilometers (km)

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Area the amount of space on the surface of an object Measured in: square meters (m 2 ) Formula: Area = Length x Width A = L x W

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Volume amount of space occupied by an object Measured in: cubic meters (m 3 ), liters (L) Formula: Volume= Length x Width x Height V = L x W x H

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Volume Continued If measuring the volume of a liquid, it is measured in: liters (L) Liquids are measured using beakers and graduated cylinders marked in milliliters. *One liter has the same volume as 1000 cm 3.

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Mass, Weight, Density

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Mass the amount of matter in an object. Measured in: kilograms (kg) Also uses: grams (g) or milligrams (mg)

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Density amount of mass a material has for its volume Measured in: Grams per cubic centimeter (g/cm 3 ) (comes from units of mass and volume) Formula: Density= mass ÷ volume

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Weight the measure of the force of gravity acting on an object Force: A push or pull Measured in: Newtons (N) Example: Gravitational Force/Pull = 9.8 N

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Temperature There are three (3) scales for measuring temperature: Fahrenheit (F) Boiling Point = 212ºF Freezing = 32ºF Celsius (C) Boiling = 100ºC Freezing = 0ºC

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Temperature Continued… Kelvin (K) There are no degrees in Kelvin Absolute Zero = Point at which almost all movement of the atoms in a materials stops. Absolute Zero = -273ºC 0ºC = 273ºK

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Metric Prefixes (based on multiples of 10) Prefixkilo-hecto-deka-deci-centi-milli- Symbol Meaning m, g, L

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Formulas Length Measured in meters Area A = L x W Volume V = L x W x H

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Formulas Continued… Mass Measured in grams Density D = M÷V Weight Measured in Newtons (N)

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