1. Metric System

2. Happy Monday! Warm-up sheet explanation and set-up Warm-up
Pass out Metric System Unit Objectives

3. Warm Up ( )
Write down 3 things you know about the metric system.
Write down 2 things that you don’t understand about the metric system.

4. Outline
Objectives
Why do I care?
Review
Length
Length lab

5. Objectives Briefly review the metric system
Determine how to correctly measure and report length of items using the metric system

6. Why do I care? Most of the world uses the metric system
Science uses the metric system
It is easier!

7. Metric System Review

8. T. Trimpe 2008 http://sciencespot.net/
Lesson 1: Length
T. Trimpe

9. English vs. Metric Units
Which is longer?
A. 1 mile or 1 kilometer
B. 1 yard or 1 meter
C. 1 inch or 1 centimeter
1.6 kilometers
1 mile
1 yard = meters
1 inch = 2.54 centimeters
Left Image: Right Image:

10. Click the image to watch a short video about the meter.
Metric Units km m cm mm
The basic unit of length in the metric system in the meter and is represented by a lowercase m.
Standard: The distance traveled by light in absolute vacuum in 1⁄299,792,458 of a second.
Metric Units
1 Kilometer (km) = 1000 meters
1 Meter = 100 Centimeters (cm)
1 Meter = 1000 Millimeters (mm)
Click the image to watch a short video about the meter.
Which is larger?
A. 1 meter or 105 centimeters
B. 4 kilometers or 4400 meters
C. 12 centimeters or 102 millimeters
D millimeters or 1 meter

11. Measuring Length How many millimeters are in 1 centimeter?
1 centimeter = 10 millimeters
How many millimeters are in 1 centimeter?
What is the length of the line in centimeters? _______cm
What is the length of the line in millimeters? _______mm
What is the length of the line to the nearest centimeter? ________cm
HINT: Round to the nearest centimeter – no decimals.
Ruler:

12. Length Lab

13. Warm Up (8-19-14) What is the metric unit of length?
Please get out your warm-up sheet and answer the following questions
What is the metric unit of length?
How many mm are in a cm?
How many cm are in a m?
3000cm = _______m ?
20km = ________ miles?

14. Outline
Objectives
Mass / Temperature
Mass / Temperature lab

15. Objectives
Determine how to correctly measure and report mass of items using the metric system

16. T. Trimpe 2008 http://sciencespot.net/
Lesson 2: Mass
T. Trimpe

17. English vs. Metric Units
1 pound = grams
Which is larger?
1. 1 Pound or 100 Grams
2. 1 Kilogram or 1 Pound
3. 1 Ounce or 1000 Milligrams
100 kilogram = 220 pounds
1 ounce of gold = 28,349.5 milligrams

18. Kilogram Prototype Image - http://en.wikipedia.org/wiki/Kilogram
Metric Units kg g cg mg
Kilogram Prototype
Mass refers to the amount of matter in an object.
The base unit of mass in the metric system in the gram and is represented by g.
Standard: 1 kilogram is equal to the mass of the International Prototype Kilogram (IPK), a platinum-iridium cylinder kept by the BIPM at Sèvres, France.
Metric Units
1 Kilogram (kg) = 1000 Grams (g)
1 Gram (g) = 1000 Milligrams (mg)
Which is larger?
A. 1 kilogram or 1500 grams
B milligrams or 1 gram
C. 12 milligrams or 12 kilograms
D. 4 kilograms or 4500 grams
Kilogram Prototype Image -

19. _______ + ______ + _______ = ________ g
Measuring Mass
We will be using triple-beam balances to find the mass of various objects.
The objects are placed on the scale and then you move the weights on the beams until you get the lines on the right-side of the scale to match up.
Once you have balanced the scale, you add up the amounts on each beam to find the total mass.
What would be the mass of the object measured in the picture?
_______ + ______ + _______ = ________ g
Top Image: Bottom Image:

20. Measuring Mass – Triple-Beam Balance
1st – Place the item on the scale.
2nd – Slide the large weight to the right until the arm drops below the line. Move the rider back one groove. Make sure it “locks” into place.
3rd – Repeat this process with the top weight. When the arm moves below the line, back it up one groove.
4th – Slide the small weight on the front beam until the lines match up.
5th – Add the amounts on each beam to find the total mass to the nearest tenth of a gram.
Click here to try an online activity.

21. Digital Scales How do I use a digital scale?
What is the difference between the CS200 scale and the CS2000 scale?

22. Example Problem: What is the temperature in °C of a 256 K object?
Solution:

The conversion formula for °C to K is


TC = (TK) - 273


TC = 

TC = -17 °C


Answer:

The temperature in Celsius of a 256 K object is -17 °C.

23. Mass / Temperature Lab
Work with a different partner than you did during the length lab.
Make sure that both of you are working together!
Use your inside voices please

24. Warm Up (8-20-14) What is the metric unit of mass?
Are weight and mass the same thing? If no, tell me what the difference is.
Briefly explain how to mass an object on a digital scale.

25. Outline Objectives Review
Mass / Temperature Lab (finish if you need to)
Length Lab (if you didn’t finish, today is the LAST day) period 5 and 6
Volume
Volume lab

26. Objectives
Determine how to correctly measure and report volume of items using the metric system

27. Review
What did we talk about yesterday?

28. Temperature Lab
On the back of your mass sheet… Add the following questions
Measure the temperature of the three beakers of water. Use Celsius for your first measurements of the beakers and then do the math to convert to Fahrenheit and Kelvin.

29. Temperature Celsius is the most commonly used unit of temperature
In the U.S. we use Fahrenheit
The SI unit of temperature is Kelvin
From To Fahrenheit To Celsius To Kelvin
Fahrenheit (F) F (F - 32) * 5/9 (F - 32) * 5/
Celsius (C or o) (C * 9/5) C C
Kelvin (K) (K ) * 9/ K K

30. T. Trimpe 2008 http://sciencespot.net/
Lesson 3: Volume
T. Trimpe

31. English vs. Metric Units
Which is larger?
A. 1 liter or 1 gallon
B. 1 liter or 1 quart
C. 1 milliliter or 1 fluid ounce
1 fl oz = ml
1 12-oz can of soda would equal approximately 355 ml.
1 gallon = 3.79 liters
It would take approximately 3 ¾ 1-liter bottles to equal a gallon.
1 quart = liters

32. Click the image to watch a short video about volume.
Metric Units kL cL mL L
Volume is the amount of space an object takes up.
The base unit of volume in the metric system in the liter and is represented by L or l.
Standard: 1 liter is equal to one cubic decimeter
Metric Units
1 liter (L) = 1000 milliliters (mL)
1 milliliter (mL) = 1 cm3 (or cc) = 1 gram*
Which is larger?
Click the image to watch a short video about volume.
A. 1 liter or 1500 milliliters
B. 200 milliliters or 1.2 liters
C. 12 cm3 or 1.2 milliliters*
* When referring to water Liter Image:

33. Measuring Volume
We will be using graduated cylinders to find the volume of liquids and other objects.
Read the measurement based on the bottom of the meniscus or curve. When using a real cylinder, make sure you are eye-level with the level of the water.
What is the volume of water in the cylinder? _____mL
What causes the meniscus?
A concave meniscus occurs when the molecules of the liquid attract those of the container. The glass attracts the water on the sides.
Top Image: Bottom Image:

34. Measuring Liquid Volume
What is the volume of water in each cylinder?
Images created at A B C
Pay attention to the scales for each cylinder.

35. Measuring Solid Volume
10 cm
9 cm
8 cm
We can measure the volume of regular object using the formula length x width x height.
_____ X _____ X _____ = _____
We can measure the volume of irregular object using water displacement.
Amount of H2O with object = ______ About of H2O without object = ______ Difference = Volume = ______
Click here for an online activity about volume. Choose Lessons  Volume & Displacement

37. Volume Lab

38. Warm Up (8-21-14) What is the SI unit of volume? 800mL = ______ L ?
How many cm is 548 mm?

39. Outline
Objectives
Surface Area
Conversions

40. Objectives To review surface area
To convert English units to Metric units and use those conversions to solve equations.

41. Surface Area
What are we measuring? What are we trying to find?

42. English  Metric Conversions
T. Trimpe

43. Place Value Review

44. 1 inch = 2.54 cm
1 ounce = g
1 kg = lbs

46. English & Metric Conversions

47. Conversions Practice

48. Kayla bought two pumpkins. The larger pumpkin was three kilograms
Kayla bought two pumpkins. The larger pumpkin was three kilograms. The smaller pumpkin was only a third the weight of the larger pumpkin. What is the weight of the smaller pumpkin in grams?

49. 1 kg
1000 g

50. There are eight aluminum cans sitting on the shelf
There are eight aluminum cans sitting on the shelf. Each can contains two hundred sixty-four ml of soup. Melissa poured all the soup into one bowl. How many liters of soup did she have?

51. 2.112 L

52. Anthony has a pet spider and a pet guinea pig
Anthony has a pet spider and a pet guinea pig. The spider is 10 mm long and the guinea pig is 35 cm long. How much longer is the guinea pig than the spider (in mm)?

53. 340 mm 

54. Convert 687 K into both Celsius and Fahrenheit.

55. C F

56. Convert 98,765ft into cm. What is that distance in km?

57. cm km

58. More Practice

59. Warm Up (8-22-14) How many centimeters are in an inch?
58cm = _______in?
Do you think the US should switch to the metric system? How would you suggest presenting this topic to important officials?

60. Outline
Objectives
Conversions
Ladder Method
Metric System Lab

61. Objectives
To correctly use the ladder method to complete metric conversions.
To demonstrate knowledge of the metric system by completing the metric system lab.

62. Metric Conversions Ladder Method
T. Trimpe

63. Metric Conversion: Stair-Step Method
 The Metric System of measurement is based on multiples of 10. Prefixes are used to indicate what multiple of 10 the base unit is being multiplied by.
The prefix Kilo (k) - means 1000 times.
The prefix Hecto (h) - means 100 times
The prefix Deka (dk) - means 10 times.
The prefix Deci (d) - means 0.1 times.
The prefix Centi (c) - means 0.01 times.
The prefix Milli (m) - means times.

64. You will see micro, nano, and pico prefixes a lot in science… pipettes especially
Giga, Mega – thing about your phone, or ipod, or computer storage mechanism……

65. How many jumps does it take?
Ladder Method 1 2 3
KILO 1000 Units
HECTO 100 Units
DEKA 10 Units
DECI 0.1 Unit
Meters Liters Grams
CENTI 0.01 Unit
MILLI Unit
How do you use the “ladder” method?
1st – Determine your starting point.
2nd – Count the “jumps” to your ending point.
3rd – Move the decimal the same number of jumps in the same direction.
4 km = _________ m
Starting Point
Ending Point
How many jumps does it take? 4. 1
__. 2
__. 3
__.
= 4000 m

66. Conversion Practice Try these conversions using the ladder method.
1000 mg = _______ g 1 L = _______ mL 160 cm = _______ mm
14 km = _______ m 109 g = _______ kg 250 m = _______ km
Compare using <, >, or =.
56 cm m g mg

67. Warm-up ( )
What is the formula for area? How do you measure surface area?
What is the formula for volume? What are the units when solving for volume?

68. Outline
Objectives
Metric System Lab
Review
Conversions Practice

69. Objectives To review the metric system
To demonstrate knowledge of the metric system by completing the metric system lab

70. Metric System Lab

71. Review
What questions do you have?

72. Conversions Practice

73. Jeopardy

74. Warm-up ( )
Write down as much as you can about what you know from the metric system unit.
Think about unit prefixes, formulas, temperature, mass, volume, and length.

75. Outline
Objectives
Any last minute questions?
Test

76. Objectives
To demonstrate knowledge of the metric system by completing the metric system unit test

77. Test No talking Phones need to go in the box.
If I see you with your phones you get a zero. No questions asked.
Don’t write on the test itself.
Show work on the answer sheet, it might earn you some points!
I will pass out rulers and an unsharpened pencil
Turn in your tests to me, return ruler and pencil, get a vocab wordsearch