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Chapter 4: Metric System

Chapter 4: Metric System. Standard Units & Metric Conversions. What is Metrics?. Based on factors of ten. Also Called International System (SI). Why use metrics in science?. Factors of ten are much easier to work with.

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Chapter 4: Metric System

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  1. Chapter 4: Metric System Standard Units & Metric Conversions

  2. What is Metrics? • Based on factors of ten • Also Called International System (SI)

  3. Why use metrics in science? • Factors of ten are much easier to work with. • Research does not just occur in the U.S.—a global community requires a universal measuring system.

  4. Standard Units • Length • Mass • Time • Temperature • Amount of substance meter kilogram second Deg. Celsius mole

  5. Derived Units • Area • Volume • Density • Concentration • Energy Square meter (m2) Cubic meter (m3) Though this is the standard, we will mostly use liters! Kg/m3 Moles/liter Joules (force x length

  6. Metric Prefixes • Each prefix signifies an amount of base units represented.

  7. King Henry Died by drinking cockroach milkshakes!!!

  8. Kilo- 1000 • Hecto- 100 • Deka- 10 • Base unit • Deci- .1 or 1/10th • Centi- .01 or 1/100th • Milli- .001 or 1/1000th

  9. Other prefixes • Mega- 1 000 000 • Giga- 1 000 000 000 • Tera- 1 000 000 000 000 • Micro- .00001 or 1/1000000th • Nano- .000000001 or 1/billon • Pico- .000000000001

  10. Sample Problems • 268 grams =_____milligrams • 5,638 centimeters =___meters • 8 meters =_____Kilometers

  11. Sample Problems • .0096 Kilograms =_____decigrams • 13 liters =_____deciliters • 2.85 milliliters =___centiliters • 2.5 centigrams =_____grams

  12. Sample Problems • 28 Decameters =____Kilometers • .03 Kilometers =____centimeters • 8 liters =____deciliters

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