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The Metric System

The Metric System. The International System of Units (SI). Units. Length- meters (m) Volume (space)- liter (l) Mass (similar to weight)- grams (g). Units in the Metric System (or SI). Abbreviations in the Metric System. Prefixes. Kilo (k) (1000). Hecto (h) (100). Deka (dk) (10).

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The Metric System

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  1. The Metric System The International System of Units (SI)

  2. Units • Length- meters (m) • Volume (space)- liter (l) • Mass (similar to weight)- grams (g)

  3. Units in the Metric System (or SI)

  4. Abbreviations in the Metric System

  5. Prefixes Kilo (k) (1000) Hecto (h) (100) Deka (dk) (10) UNIT meter liter gram Deci (d) (1/10) Centi (c) (1/100) Milli (m) (1/1000)

  6. Mnemonics to Remember the Steps Kilo- Hecto- Deka- Meter Deci- Centi- Milli- King Hector's Daffy Mother Drinks Chocolate Milk King Henry Died Monday Drinking Chocolate Milk King Henry Died! Mother Didn't Care Much King Hector Dector Makes Delicious Chocolate Milk Kangaroos Hop Down Mountains During Cold Months Kings Have Diamonds. Most Diamonds Cost Money.

  7. Conversions • To go up the steps, move the decimal to the left the number of steps you are going. • To go down the steps, move the decimal to the right the number of steps you are going.

  8. Group Practice

  9. Volume How much space an object takes up Three types: Regular solids, Liquids, and Irregular solids

  10. Volume of Regular Solids Use the metric side of a ruler! = length x width x height = m x m x m = m3 = cm x cm x cm = cm3

  11. Volume of Liquids • Use graduated cylinder • Read bottom of curve (meniscus) Unit- liter = L (about a quart) • 1 mL = 1 cm3

  12. Volume of Irregular Objects • Use displacement • How much water level increases when dropped in a graduated cylinder • How much space it holds

  13. Mass- amount of matter in the object (how many particles) • Use a triple-beam balance or a scale. • Unit= Gram (about the mass of a paper clip)

  14. Temperature • Use a Celsius Thermometer • Measure in the middle of a liquid • Unit= Degree (C) 100 C- water boils (212 F) 21 C- room temperature (about 72 F) 0 C- water freezes (32 F) -273 C- “absolute zero” (-460 F) Particle motion stops!

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