Upload
sydney-greer
View
33
Download
0
Embed Size (px)
DESCRIPTION
Measurement & Metrics. SI Measurements (also known as “metric system”). “SI” stands for “ System International ” or “International System of Measurement”. (2013). Why is the Metric System better?. Common Language used by all scientists. Based on multiples (units) of 10. - PowerPoint PPT Presentation
Citation preview
SI Measurements(also known as “metric system”)
• “SI” stands for “System International” or “International System of Measurement”
(2013)
Why is the Metric System
better?
–Common Language used by all scientists
–Based on multiples (units) of 10
–Multiply or divide by 10’s when converting
–We only move the decimal point when converting
–determine “how many” of a unit
–kilo-–milli-–centi-
PREFIXES
BASE UNITS•METER•LITER•GRAM•SECOND•DEGREES CELSIUS
METER = m • measures distance or length• LENGTH:the distance between
two points• Measure with metric ruler or metric ruler or
meter stickmeter stick
LITERS = L
Measure with graduated cylindergraduated cylinder
length X width X heightlength X width X height
GRAMS = gg
GRAMS = gg • Measure mass with triple beam triple beam
balancebalance
oCELSIUS = ooCC• Measures temperature•
Measured with a thermometerthermometer
PREFIXES
k = kilo- (means “10001000”)h = hecto-(means “100100”)da = deca-(means “1010”) BASE UNIT (liter, meter, gram)
d = deci-(means “1/10” or 0.11/10” or 0.1)c = centi- (means “1/1001/100” or .01)m = milli- (means “1/10001/1000” or .001)
Easy way to remember the order of prefixes:
Kids Have
Dreams But
DreamsCost
Money
Metric Conversions
Ladder Method
T.
KILO1000 HECTO
100 DEKA10
DECI0.1 CENTI
0.01 MILLI0.001
Meters
LitersGrams
Ladder Method
1st – Determine your starting point.
2nd – Count the “jumps” to your ending point.
3rd – Move the decimal the same number of jumps in the same direction.
4 km = _________ m
12
3
How many jumps does it take?
Starting Point
Ending Point
4.1
__
.2
__
.3__
.= 4000 m
Try these conversions using the ladder method.
1000 mg = _______ g 1 L = _______ mL 160 cm = _______ mm 14 km = _______ m 109 g = _______ kg 250 m = _______ km
Conversion Practice
Compare using <, >, or =.
56 cm 6 m 7 g 698 mg
Write the correct abbreviation for each metric unit.
1) Kilogram _____ 4) Milliliter _____ 7) Kilometer _____
2) Meter _____ 5) Millimeter _____ 8) Centimeter _____
3) Gram _____ 6) Liter _____ 9) Milligram _____
10) 2000 mg = _______ g 15) 5 L = _______ mL 20) 16 cm = _______ mm
11) 104 km = _______ m 16) 198 g = _______ kg 21) 2500 m = _______ km
12) 480 cm = _____ m 17) 75 mL = _____ L 22) 65 g = _____ mg
13) 5.6 kg = _____ g 18) 50 cm = _____ m 23) 6.3 cm = _____ mm
14) 8 mm = _____ cm 19) 5.6 m = _____ cm 24) 120 mg = _____ g
Compare using <, >, or =.
25) 63 cm 6 m 27) 5 g 508 mg
29) 1,500 mL 1.5 L
26) 536 cm 53.6 dm 28) 43 mg 5 g
30) 3.6 m 36 cm