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Metric Notes

Ms Toal 2025

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  • The Metric system is based on “10”, so it’s EASY

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  • S.I. stands for “Systeme Internationale

used to measure everything

It is used universally, except in the US�(J Carter)�Milk, gasoline, soda, shoes??

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�

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Measurements and units

Measurements

SI Unit

Length

Meter (m),

centimeter (cm),

millimeter (mm)

Mass

Gram (g),

kilogram (kg),

milligram (mg)

Volume

Liter (L),

milliliter (ml),

cubic centimeter (cm³)

Time

Seconds (s)

Temperature

Celsius (°C)

(not Fahrenheit)

Kelvin (°K) no negative numbers

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Standard vs Metric

Standard

  • Gallons, pints, quarts
  • Inches, feet, yards, miles
  • Cups, teaspoon. Tablespoon
  • Fahrenheit,
  • Pounds (lbs), ounces

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Metric

  • Liters, cubic centimeters (cc), milliliters
  • Millimeters, centimeters, meters, kilometers
  • Celsius
  • Kilograms, grams

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  • What is matter?

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  • Some matter is easy to see, like _____
  • Some matter is not easy to see, like ___
  • Anything that has mass and takes up space

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  • Pencil, tree

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  • Air, gases,

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  • What are the four properties of matter?
  • Mass
  • Weight
  • Volume
  • Density

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  • MASS:
  • mass is the amount of matter in an object.
  • Everything in the Universe that has mass is affected by gravity.

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  • WEIGHT
  • is the measure of the gravitational pull on an object.

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  • Weight = MASS X GRAVITY

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  • VOLUME
  • is the amount of space that an object takes up.

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2 ways to find volume:�

  • Directly

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  • Indirectly
  • use a ruler to find (L X W X H) CM3

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  • use a graduated cylinder and measure how much water is displaced.

ml

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(also known as specific gravity)

  • DENSITY
  • is the amount of matter (mass) in a given space (volume).
  • Can you think of two things that have two different densities?

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Properties and measurements

  • Mass

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  • Weight

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  • Volume

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  • Density
  • g (grams),
  • kg (kilogram)
  • mg (milligram)
  • (mass X gravity) = g, kg

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  • cm3
  • ml (milliliter),
  • L (liter)
  • g/ml
  • g/cm3

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