Measuring With Scientific Units

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# Measuring With Scientific Units - PowerPoint PPT Presentation

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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### 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: UNITS
• REVIEW: LENGTH

METER: distance

REVIEW: VOLUME

LITER: Volume = length x width x height = cm3

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: 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: UNITS

DENSITY

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

= grams / milliliter

= grams / cm3

= MASS / VOLUME

PURE WATER = 1g / mL

MEASUREMENT: PREFIXES

king hector doesn’t buy dragons costing millions

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

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
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