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Measuring With Scientific Units. MEASUREMENT. MEASUREMENT Measurement is in NUMBERS and UNITS. Most of the world uses the METRIC SYSTEM Based on the ‘NUMBER TEN’ Based on the METER. MEASUREMENT: SYMBOLS. MEASUREMENT: UNITS. REVIEW: LENGTH METER: distance REVIEW: VOLUME

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Presentation Transcript
measurement
MEASUREMENT
  • MEASUREMENT
  • Measurement is in NUMBERS and UNITS.
  • Most of the world uses the METRIC SYSTEM
    • Based on the ‘NUMBER TEN’
    • Based on the METER
measurement units
MEASUREMENT: UNITS
  • REVIEW: LENGTH

METER: distance

REVIEW: VOLUME

LITER: Volume = length x width x height = cm3

measurement units1
MEASUREMENT: UNITS

WEIGHT AND MASS

GRAM: mass & weight

  • WEIGHT depends on WHERE YOU ARE IN THE UNIVERSE
    • Changes depend on GRAVITY
  • Mass depends onTHE NUMBER AND TYPE OF ATOMS
    • ALWAYS STAYS THE SAME
measurement units2
MEASUREMENT: UNITS
  • TEMPERATURE AND TIME

CELSIUS: temperature

  • TEMPERATURE measures AMOUNT OF HEAT
    • WHAT IS YOUR BODY TEMPERATURE?
    • 98.6 degrees Fahrenheit
    • 37 degrees Celsius

SECONDS: time

  • TIME measures ORDER OF EVENTS
measurement units3
MEASUREMENT: UNITS

DENSITY

  • GRAMS PER VOLUME: density
  • Density = AMOUNT OF MASS PER VOLUME

= grams / milliliter

= grams / cm3

= MASS / VOLUME

PURE WATER = 1g / mL

LEAD = 11g / mL

measurement prefixes1
MEASUREMENT: PREFIXES

king hector doesn’t buy dragons costing millions

conversions
CONVERSIONS

Conversions are easy because they’re BASED ON THE NUMBER TEN

  • Just MOVE THE DECIMAL!

Setting up the Divisions

k  h  da base d  c  m

1,000 units 100 units 10 units 1 unit 1/10 unit 1/100 unit 1/1,000 unit

conversions1
CONVERSIONS

k  h  da base d  c  m

1,000 units 100 units 10 units 1 unit 1/10 unit 1/100 unit 1/1,000 unit

  • If you’re going from SMALL amounts to LARGE amounts, move the decimal TO THE LEFT
  • 300 centimeters = 3.00 meter
  • 56 liters = ______ kiloliters?
  • .056 kL
  • 82.3 milligrams = _______ decigrams?
  • .823 dg
conversions2
CONVERSIONS

k  h  da base d  c  m

1,000 units 100 units 10 units 1 unit 1/10 unit 1/100 unit 1/1,000 unit

  • If you’re going from LARGE amounts to SMALL amounts, move the decimal TO THE RIGHT
  • 95 grams = 95,000 milligrams
  • 20.5 decameters = _________ meters?
  • 205 m
  • 6.82 liters = .0682 cL centiliters?
  • Good job! 682 cL