Date post: | 18-Dec-2015 |
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What you are used to.
Length
Mass
Volume
English
Inches, feet,& miles
Pounds &Ounces
Quarts, pints, & gallons
What scientists use…and the rest of the world except Liberia and Burma.
Length
Mass
Volume
Metric
meters
grams
liters
Now forget the left side of the bubble map… This is what you are to use from now on
Metric System
Mass
Liters (L)Meters (m) Grams (g)
Length Volume
Suffixes (root word) cont…
• The word prehistoric – “historic” is the suffix
• It always comes after the prefix.
• Same with multivitamin – “vitamin” is the suffix
Prefixes
• They come before the suffix.
• Prefixes by themselves don’t mean anything.
• Example, the prefix “Un” means nothing
• Added to unhappy means not happy.
Metric Prefixes
• Kilo (k) – largest• Hecto (h)• Deca (da)• Deci (d)• Centi (c)• Milli (m) – smallest
• They will never be by themselves, they have to be written with a suffix.
Prefixes + Suffixes for Mass (grams)
• Prefix + Suffix = Term
• Kilo (k) + gram (g)= Kilogram (kg)• Hecto (h) + gram(g) = Hectogram (hg)• Deca (da) + gram(g) = Decagram (dag)• Deci (d) + gram(g) = Decigram (dg)• Centi (c) + gram(g)= Centigram (cg)• Milli (m) + gram(g)= milligram (mg)
• These terms only measure mass.
Prefixes + Suffixes for Volume(Liters)
• Prefix + Suffix = Term
• Kilo (k) + Liter (L) = Kiloliter (kL)• Hecto (h) + Liter(L) = Hectoliter (hL)• Deca (da) + Liter (L) = Decaliter (daL)• Deci (d) + Liter (L) = Deciliter (dL)• Centi (c) + Liter (L) = Centiliter (cL)• Milli (m) + Liter (L) = milliliter (mL)
• These terms only measure volume.
Prefixes + Suffixes for length(meters)
• Prefix + Suffix = Term
• Kilo (k) + meter(m) = Kilometer (km)• Hecto (h) + meter(m) = Hectometer (hm)• Deca (da) + meter (m) = Decameter
(dam)• Deci (d) + meter (m) = Decimeter (dm)• Centi (c) + meter (m) = Centimeter (cm)• Milli (m) + meter (m) = millimeter (mm)
• These terms only measure meters.
Why do we have specific prefixes for each type of measurement… Length
Km
hm/ dam
mm
dm/ cm
A big measurement
A small one
Same scenario works for volume and mass
• Volume – what units (prefix + suffix) would you use to measure the volume of this?_______
• Mass - what units (prefix + suffix) would you use to measure the mass of this?_________
Determining what each line may represent on a measuring tool.
• Step 1 – find any two numbers… example 50 and 40
• Step 2 – subtract the two… 50 – 40 = 10
• Step 3 – count the lines in between them… start at the line above the bottom number, and stop at the line that is the top number. Example… from 40 to 50 I count 10 lines.
• Step 4 – divide the answer from step 2 by the answer from step 3…. 10 divided by 10 = 1
• Your answer from step four tells you that each line equals 1.
• This example the meniscus would read 43mL
How to measure mass
• Always measure in grams
• As shown the balance is 373.3g
• 300 + 70 + 3.3 = 373.3g
Metrics - Temperature
• Celsius- – standard
form of temperature measurement
– Abbreviation• C (Capitol)
– Human body is 98.6 F, and that is 37 C
Great… How do I do conversions?Kilo-(k)
Hecta-(h)
Deca-(da)
Meter (m), Liter (L), Gram
(g)
Deci-(d)
Centi-(c)
Milli-(m)
1000 units
100 units
10 units
1 unit .1 units
.01 units
.001 units
0.056 0.56 5.6 56 560 5600 56000
/1000 /100 /10 1 X10 X100 X1000
To remember
• Kids• Have• Damaged• 3• Different• Colorful• Millipedes
Great… How do I do conversions?Example #1: 0.250kg mg
Kilo-(k)
Hecta-(h)
Deca-(da)
Gram (g) Deci-(d)
Centi-(c)
Milli-(m)
0.250
1x 2x 3x 4x 5x 6x
0.250 2.5 25. 250. 2500. 25,000. 250,000.
250,000.mg
The decimal is moving