1. Measurements
The Metric system was developed in France during the Napoleonic reign of France in the 1790's.

2. “Weights and measures may be ranked among the necessaries of life to every individual of human society…They are necessary to every occupation of human industry.... The knowledge of them, as in established use, is among the first elements of education...”
JOHN QUINCY ADAMS - Report to the Congress, 1821

3. Which other countries, besides the U.S., do not use the metric system?
STAT FACT
Which other countries, besides the U.S., do not use the metric system?
Only a few small countries (Liberia and Myanmar) , including some Caribbean nations heavily influenced by the U.S., have not formally adopted the use of SI.
Among countries not claiming to be metric, the U.S. is the only significant holdout.

4. In any measurement system,It… must be agreed upon and cannot change
Ex: The foot.

5. Le Systeme Internationale d’Unites (SI)
1960- SI system
Based on Metric System

6. Standards 5
In a measurement system there are exact quantities that people agree to use for a certain measurement.
Ex: The meter
The speed that light travels in a vacuum 1/ of a second.
Why...This seems CRAZY!!!
The meter Clip

7. Another Example of a Standard …..The kilogram
The official kilogram, made of platinum-iridium, remains in France at the International Bureau of Weights and Measures
Clip

8. Le Systeme Internationale d’Unites (SI)
English: International System of Units
Each measurement has a base unit.

9. Based on multiples of ten.
SI System
Based on multiples of ten.
Examples of base units
Length
Meter
Mass
Gram
Volume
Liter
Time
Second
Temperature
-Kelvin
Energy
-Joule
Electric Current
-Ampere

10. Base Units
EX:
1 Liter= 1000ml
1 gram = 1000mg
1meter= 1000mm

11. Based on Multiples of TEN
Prefixes
Prefixes are used with the base units to indicate what multiple or fraction of ten should be used.
Multiple of BU
Fraction of BU
Kilo-
Hecto-
Deca- BU
Deci-
Centi-
Milli- k h D d c m
BASE UNIT
1000x
0.1
0.01
100x
10x
0.001
King Henry Died Drinking Choc Milk
Meter
Liter
Gram
Watt
Newton
Second
Joule
Based on Multiples of TEN

13. Metric Conversions
A conversion is changing the way you state the same amount!
Ex: 1 dollar
4 quarters, 100 pennies, 10 dimes
1meter = 100centimeters
Simply move your decimal point.

14. Laboratory Apparatuses for making Measurements

15. Distance between two points
LENGTH
Distance between two points

16. Meter Stick 1m = 100 Centimeters 1m = 1000 millimeters
Length
Distance
1m = 100 Centimeters
1m = 1000 millimeters
1cm = 10 mm
Each line on the meter stick is a millimeter.

17. Meter Stick
The last digit in all measurements is an estimate digit.

18. Amount of matter in an object
MASS
Amount of matter in an object

19. Triple Beam Balance Grams

20. Space occupied by an Object
VOLUME
Space occupied by an Object

21. VOLUME – REGULAR OBJECT
Length x Height x Width =Volume
RULER

22. LIQUID VOLUME
Graduated Cylinder

24. VOLUME – IRREGULAR OBJECT
GRADUATED CYLINDER

25. Indirect Measure of Kinetic Energy
TEMPERATURE
Indirect Measure of Kinetic Energy

26. TEMPERATURE Measure using a thermometer
Measure in degrees Celsius, °C.

27. SCIENTIFIC NOTATION
Scientific notation is a way of writing numbers that makes it easy to handle very large or very small numbers.
Imagine having to write out Avogadro’s Number – 6.02 x 1023!
602,211,220,000,000,000,000,000

28. SCIENTIFIC NOTATION To Scientific Notation
If the number is less than one, move the decimal to the right. The exponent is negative and equals the number of places you moved the decimal point.
 x 10-5
If the number is greater than one, move the decimal to the left. The exponent is positive.
 x 103

29. SCIENTIFIC NOTATION From Scientific Notation
If the exponent is negative, move the decimal point to the left. The number is less than one.
4.567 x 
If the exponent is positive, move the decimal point to the right. The number is greater than one.
1.234 x  1234

30. PRACTICE
Express in scientific notation. Assume three significant figures in each ,

31. PRACTICE Express the following numbers as ordinary numbers

32. TEMPERATURE
Kinetic Energy

33. Temperature Fahrenheit vs. Celsius vs. Kelvin
Absolute Temperature scale
Temperature Fahrenheit vs. Celsius vs. Kelvin
Lord Kelvin ( )
1742, Anders Celsius ( )
1714:Daniel Gabriel Fahrenheit ( )
Absolute Zero: temperature at which all matter stops moving.
Superfridge
Video Clip

36. PRACTICE:
1) 250 Kelvin to ºCelsius
2) 339 Kelvin to ºCelsius
3) 17º Celsius to Fahrenheit
4) 55º Celsius to Fahrenheit
5) 89.5º Fahrenheit to Celsius
6) 383º Kelvin to Fahrenheit

37. TEMPERATURE CONVERSION
Answers   
1) -23 ºC            
2) 66 ºC            
3) 62.6°F          
4) 131°F            
5) 31.9 ºC                   
6) 230 ºF

38. GRAPHING The Six Graph Commandments
Thou shalt draw your graph in pencil with a ruler.
Thou shalt use all thy graph paper.
Thou shalt label your axes.
Thou shalt always give units.
Thou shalt give your graph a title.
Thou shalt give a key if necessary.

39. TYPES OF DATA Quantitative vs. Qualitative
QUALITATIVE DATA - data collected involve observations without numbers. Measurements
QUANTITATIVE DATA - involves numbers or measurements.

40. DENSITY
Mass per unit Volume

41. Density
Density: Amount of matter in a specific volume; mass per unit volume.
These 2 cubes have the same VOLUME, but they have different densities. Why?

42. Density practice problem
Which cylinder has the greatest density?
What if I had the same amount of each cylinder (1 mL) - which one would have a greater mass??
Vol: 5 mL
Mass: 10g
Vol: 25 mL
Mass: 15g
Density = 2g/mL
Density = 1.7g/mL

43. DERIVED UNITS Obtained by combining different units.30
Obtained by combining different units.
Ex: density, speed
Density is the amount of mass per unit volume.
D = m/v

44. DENSITY PRACTICE
Do the following practice problems solving for mass, volume, or density.

45. DENSITY PROBLEM
A block of aluminum occupies a volume of 15.0mL and weighs 40.5g. What is its density?
V = 15.0mL
M = 40.5g
D = ?
D = M/V
D = 40.5g/15.0mL
= 2.7g/mL

46. WEBSITE
Address:
Click here

47. Answer on your own paper – You have ten minutes and then I am collecting it.
How many mL are in 1 kL?
If I have L, how many mL do I have?
What are some units for volume? (give 2)
Define mass?
Marsha has three 2-L sodas. How many mL does she have total? If there are six people at dinner, how many mL can they each have (and it be equal amounts)??

48. TEST FORMAT 5 MC questions Table on metric measurements
2 questions on lab safety
4 metric conversions
4 scientific notation to regular or vice versa conversions
2 density problems
6 questions on the scientific method
2 questions on reading lab equipment

49. METRIC MEASUREMENTS

50. LAB SAFETY REVIEW
Look at your safety contract and notes.

51. METRIC CONVERSIONS How many mL are in 1 kL?
If I have L, how many mL do I have?

52. SCIENTIFIC NOTATION
Be able to change a number into scientific notation.
4000  x 103
0.004  4 x 10-3
Be able to change a number out of scientific notation.
4.662 x 104  46,620
5.25 x 10-3 

53. DENSITY PROBLEMS

54. DENSITY PROBLEMS

55. DENSITY PROBLEMS

56. SCIENTIFIC METHOD

57. READING LAB EQUIPMENT

59. REVIEW PACKET
Completion of the review packet – turned in on the day of the test only – will be extra credit.
After four such review extra credits, you will be given the chance to redo a test.