1. Standards of Measurement
Newspaper clipping - can you find the measurements in it?

2. Historically, body parts were used as measuring devices
The height of a horse was measured in hands
Foot comes from the average length of a person's foot.
A pace is the length of  a person's step.
*What is the main
problem with this kind
of system?

3. Match the unit with the item...
A  _______________ of milk.
A  __________ of material.
A  __________ of potatoes.
A  __________ of rope.
You are driving  60 _______ per hour. 
a.  pound b.  miles
c.  foot
d.  yard
e.  gallon
The units above use an ENGLISH system of measurement - used mainly in England and U.S.A.
Most other countries use the METRIC system

4. You are probably also familiar with some of the metric system units
You are probably also familiar with some of the metric system units.  Match these...
A  2 ______ bottle of soda.
A  ________ of sugar.
A  ________ stick.
a.  gram b.  liter c.  meter

5. Science uses the International System of Units (SI) known as the Metric System. (Get use to it! Do not say pound, inches, feet, yards, or miles in this class!)
Quantity
Unit
Symbol
Length
Meter m
Mass
Kilogram kg
Temperature
Celsius C
Volume (s)
Cubic meter m³
Volume (l)
Liter L
Time
Seconds s

6. Be warned. You will be doing math in this class.
If a doctor orders 10 cc's of insulin, how many mls is that?

7. Metric system units are base 10, so it is easy to convert
Ex.   There are 10 millimeters in 1 centimeter
         100 centimeters in 1 meter
A mm is about as thick as a dime.   Notice there are about 10 dimes between the 6 and the 7 on this photo.
The large number represent centimeters.

8. Don't worry about converting inches to centimeters - just measure in centimeters to start with. Use your ruler to calculate. 1. Width of your desk  _______ cm 2. Width of your desk  ______ mm   3. Length of your index finger _____ cm 4. Length of your index finger ______mm  

9. Length Measurements Millimeter = small objects, like a quarter
Centimeter = small objects, your foot or even your height
Meter = larger distances, the size of a room
Kilometer = much larger distances, St. Louis to Springfield
What are the english units for the lengths above?

10. Volume measures the amount of something, usually a liquid.
SI units for volume
Liter
Milliliter
Beakers and Graduated cylinders used to measure

11. CC = cubic centimeter, which is the same as a ml Used in medicine

12. Mass: the amount of matter in an object (It’s not weight
Mass: the amount of matter in an object (It’s not weight!! Don’t even think that they are the same!! They AREN’T!) Weight measures mass + gravity       Mass is measured in grams and kilograms.

13. Units of Mass Grams for small objects or foods
Kilograms for larger objects like people
         1000 grams = 1 kilogram
Some scales show both pounds and kilograms.  How much does this person weigh?
1lb = .45 kilograms
(well on Earth)

14. Tools of Measurement What do I use to measure the _________? Length
metric ruler
Mass
triple beam balance
Volume(s) (regular object )
l x w x h
Volume (s) (irregular object)
measure the displacement of water
Volume- (l)
graduated cylinder
Temperature
thermometer

15. Dimensional Analysis- Process of converting units
More than 1:
da= deka - 10
h= hector - 100
K= Kilo – 1000
Less than 1:
m= milli - 1/1000 -As a decimal: ________
c= centi - 1/ As a decimal: ________
d= deci – 1/ As a decimal: ________

16. Conversion Factors 1m = 100cm 1m = 1000mm 1000 m = 1 km
1 cm³ = 1cc = 1 ml

17. Problems
2500 grams to kilograms

18. How many kilograms are equal to 1357 grams?

19. How many liters are equal to 3.184 ml?

20. How many ml are equal to 5.43cm³

21. Quiz Time

22. 1. What is the metric unit you would use to measure your foot
         A football field? ____________
         The distance between St. Louis and Chicago? _____
2.  ____________is the amount of matter in an object
3.  ____________ is the amount of space an object takes up.
4.  If you were to weigh yourself using the metric system, what unit would you use? __________
5.  What does SI stand for?  ______________________
6.   Name an equipment that would be used to measure volume? ___________________
7.   How many millimeters are in a centimeter? ______
8.   How many grams are in a kilogram? ______