1. Metric System

2. Metric System
Time
Length
Volume
Mass
Temperature
Conversions

3. Metric Measures and Conversions
The Latin prefixes used in the metric system literally mean the number they represent.
1 kilogram = 1000 grams
A kilo is 1000 of something just like a dozen is 12 of something.

4. Metric Measures and Conversions
To convert from a larger to smaller metric unit you always multiply (x)
To convert from a smaller to larger unit you always divide (÷)
kg  g mg
l  ml
km  m  cm  mm
1 kg = _____ g
mg  g  kg
ml  l
mm  cm  m  km
1000 mg = ______ g

5. Metric Conversion Stair Chartkm hm
dam m dm mg cm mL mm
EXAMPLE
Length Volume

6. Conversion Example 1000mg =_______ g
STAIR CHART
Conversion Example
1000mg =_______ g
To convert 1000 milligrams to grams you are moving upward on the stairs: 
Pretend you are standing on the milli-gram stair tread and to get to the 1-gram stair tread you move up 3 steps dividing by 10 each time.
1000/10 = 100        
100/10 = 10    
10/10 = 1
1000mg = 1 g
More examples

7. Sample problems How big is this caterpillar? _____ cm _____ mm _____ m
STAIR CHART
Sample problems
How big is this caterpillar?
_____ cm
_____ mm
_____ m
How big is this snail?
_____ cm
_____mm
_____m
1.5
2.5 15 25
.015
.025
Length

8. Measuring Volume How much liquid is in this graduated cylinder?
STAIR CHART
Measuring Volume
How much liquid is in this graduated cylinder?
_____mL
_____L 13
.013
Volume

9. Time SI unit: seconds (s) Measures the duration of an event.
There are 60 seconds in 1 minute.

10. Length SI unit: meters (m) Measures the distance between two points.
There are 10 mm in 1 cm.

11. Volume SI unit: liters (L)
Measures the amount of space that an object or substance occupies.
There are 1000 mL in 1L.

12. Mass SI unit: grams (g) Measures the amount of matter in an object.
There are 1000 g in 1 kg.

13. Temperature SI unit: Celsius (C˚) Measures the amount of heat found.
C˚ is not the same as F˚.
100 C˚ = boiling water 212 F˚
0 C˚= frozen H2O = 32 F˚

14. After Bell Activity 1. How long is this snail in ____________ cm
____________ mm
2. How much liquid does this graduated cylinder have? ___________mL
3. What is the temperature?

15. What would you use to measure
Volume ____
Mass____
Length ____