In science class we always use the International System of Measurement.
We refer to this system as SI.
Always remember that there are NO fractions in the metric system
(SI). In SI, ½ is 0.5.The metric system is simpler than the English system though, because it
is based on 10s.
Metric
System Review…
Our
Beloved Base Units:
Measuring…
|
Base Unit
|
Mass
|
Grams
|
Volume
|
Liter
|
Length, Height, or Distance
|
Meter
|
Our
Beloved Prefixes:
Prefix
|
Means…
|
Kilo (k)
|
1000
|
BASE (meters/grams/liters)
|
1
|
Centi (c)
|
.01
|
Milli (m)
|
.001
|
Name
the unit…
1000
meters: _____________________
.001
liters: __________________
.01
meters: __________________
.01
grams: ___________________
1000
grams: ___________________
Common Metric Units and Benchmarks Chant
Chant courtesy Harriet Ball (Ty! J)
And how long is a kilometer?
That's to Mickey D's, an 8 block trip
And a meter - That’s a meter
stick
And a meter - That's a
meter stick
And a centimeter - My
fingertip
And a centimeter - My
fingertip
Now break it down and show me
How you choose for these other measures
Like a liter?
That’s a coke bottle, not a two liter, but a
one liter
And a milliliter? An
eyedrop full
A milliliter? An eyedrop
full
And a kilogram? Heavy as a
textbook
And a kilogram? Heavy as a
textbook
And a gram?
Heavy as a paperclip, or a raisin on my lip
And a milligram? Heavy as a
grain of sand
·
Pick the right base unit first!!!
·
The best unit to measure with is usually not _larger than the object.
·
The best unit to measure with will usually not require us to use a
huge number.
For
example… your table is too short to measure with a kilometer. But if we were to
measure it in centimeters, there would be a lot. So we should measure it in meters.
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1. Complete "Now You Try on Your Own" Classwork
2. Complete the 5 questions in the Google form below for yesterday's "Measuring Matter" Brainpop Video.
 |
| Click here to watch the "Measuring Matter" Brainpop Video |
3. Review Metric System benchmarks by watching the phenomenal Harriet Ball chant below:
Lifework Metric Measuring Sense
Part 1:
Write the benchmark we learned for each unit today (use the chant in your
notes. J)
1)
A
gram is about the mass of a _______________________________.
2)
A
kilogram is about the mass of a _____________________________.
3)
A
meter is about the length of a ____________________________.
4)
A
centimeter is about the length of a _________________________.
5)
A
liter is about the volume of a _____________________________.
6)
A
milliliter is about the volume of ______________________________.
Part 2:
Match the item with the unit that would be best to measure it.
____1) Length of chalkboard a. Meters
____2) Mass of folding chair b. Grams
____3) Mass of a stick of gum c. Liters
____4) Length of a cell phone d.
Millimeters
____5) Volume of a milk bottle e. Centimeters
____6) Volume of a test tube f. Kilometers
____7) Length of a flea g. Milligrams
____8) Mass of a flea h. Kilograms
____9) Distance from Dallas to Waco i. Milliliters
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