-- OR

1
Metric Measurement

• -- OR
• Learning how to measure
• CORRECTLY ?

2
Parts of Measurement
Every measurement has two parts
a number
a UNIT
Without a unit your answer is
_________!!!!!!!
NAKED
You have naked numbers??? Oh, the horror!
3
Systems of Measurement
English
We use the _________ System
inches
feet
miles
Length _______, ______ and _______
cups
gallons
Volume _______ and ________
pounds
ounces
Weight ________ and ________
Metric
Scientific Standard the ________ System
meters
Length _______ (___________ ___________ )
centimeters
millimeters
liters
milliliters
Volume _______ (____________)
grams
Mass _______ (___________ ___________)
kilograms
milligrams
4
Units of Length
meter
Basic unit is the _______
Our rulers have TWO sides one is ENGLISH and
one is METRIC!
ALWAYS use the METRIC side!!!!
Metric
English
5
Length Abbreviations

• Meter m
• Kilometer km
• Centimeter cm
• Millimeter mm

6
Units of Volume
Basic unit is the _______
LITER (L)

• Measured using a ________________

graduated cylinder
The liquid will look curved in the cylinder
this is called a _________. Read the level of the
liquid from the _________ of the meniscus!
meniscus
BOTTOM
7
Volume Abbreviations

• Liter L
• Milliliter ml

8
Units of Mass
Basic unit is the _______
GRAM (G)

• Measured using a _______ or _________

scale
balance
Larger masses are measured in __________, smaller
masses in ___________
kilograms
milligrams
9
Mass Abbreviations

• Milligram mg
• Gram g
• Kilogram kg
• Metric ton t

10
Metric Conversions
The Metric system is based on _____
10s
(This makes it LOTS easier!) ?
To convert from one metric unit to another,
either _______ or ______ by 10.
multiply
divide
Or move the decimal place to the ______ or the
______ the correct number of places.
right
left
11
Metric Conversions
Heres a handy chart to help you with your metric
conversions
Basic Unit
kilo- hecto- Deca- m l g deci- centi- milli-
12
Metric Conversions
How to use the chart
1. Find your starting unit
2. Find your ending unit
3. Move your decimal point the same number of
hops in the same direction
4. Change your units
13
Example
Convert 5 milligrams to grams
Start here
End here
kilo- (k) hecto- (h) Deca- (D) m l g deci- (d) centi- (c) milli- (m)
We take 3 hops to the left, so we move the
decimal point 3 places to the left.
14
Example
5 milligrams
0
.
.
0
.
.
0.005 grams
5 milligrams becomes __________
15
Example 2
Convert 0.8 L to deciliters.
Start here
End here
kilo- hecto- Deca- m l g deci- centi- milli-
We take 1 hop to the right, so we move the
decimal point 1 place to the right.
16
Example 2
.
0.8 L
8 dL
0.8 liters becomes __________
17
Remember!
1. If the number doesnt have a decimal point to
start with its _____ the number!
after
(56 ml is really 56.0 ml)
2. If the decimal point is at the beginning of
the number, remember to put a _____ in ______of
the decimal point!
zero
front
( .345 cm should be written as 0.345 cm)
units
3. All numbers need ______! (We will have no
_______ numbers in Science!!)
naked