1. The Metric System SI – Systeme International d’Unites
Universal system of measurement.
Based on units (or powers) of 10 or
multiples of 10.
Metric comes from the Greek metron,
meaning measure.
The world uses the metrics except
US, Myanmar and Liberia

2. Length
Volume
mass
Temp.
Def.
units
tools

3. Essential Questions
What are the tools scientists use to measure length, volume, density, and mass.
What are the SI units for length, volume, density, and mass?
How do we make conversions in the SI system?

4. Distance between two points Measured in meters
Length
Distance between two points
Measured in meters
Use rulers, meter sticks to measure

5. Volume The amount of space an object takes up Liquids: liter L
Solids: cubic centimeters, cc, cm3
Liquids use a graduated cylinder
Solids: ruler and calculator (l x w x h = V)
Or displacement

6. Mass The amount of matter in an object Measure using grams g
Use a balance (not a scale!) to measure

7. temperature
The kinetic energy(motion) of all particles in a substance
Degrees C- Celcius, centigrade water freezes at 0 degrees and boils at 100 degrees
Measured with a thermometer

8. density
Density is a property of matter that tells how closely packed the particles are
Density =mass (grams)/volume(mL)
D=m/v

9. Length, Mass, & Volume (MGL)
Length is the distance between two points
measured in meters.
Mass is the amount of matter in an object
measured in grams.
Volume is the amount of space taken up by an object
measured in liters.

10. The Tools Length – Meter stick or ruler Volume – Mass – Balance
Liquids: Graduated cylinder
Solid: L x W x H or displacement
Mass – Balance

11. METER Kilo Hecto Deka Deci Centi Milli k- h- dk- d- c- m- 100 10 .1
Prefix
Kilo
Hecto
Deka
Deci
Centi
Milli
Abbreviation k- h-
dk- d- c- m-
Meaning
1,000
100 10 .1
.01
.001
METER
More than one base unit
Less than one base unit
Count spaces to move decimal places. More than one meter move left, less than one meter move right.

12. Conversion 1,000 meters = 100 meters = 10 meters = 1 meter =
1 Kilometer
1 Hectometer
1 Dekameter
1 Meter
1 Decimeter
1 Centimeter
1 Millimeter

13. Convert the following:
cm = ______m
m = ______hm
mm = ______dm
hm = ______m
m = ______dkm
1 meter
.4 hectometer
20 decimeters
500 meters
1 dekameter
Kids Have Dropped Dead Converting Metrics
(km) (hm) (dkm) (dm) (cm) (mm)
METER

14. Metric Scavenger Hunt 1) The length of the dry erase board
2) The mass of the fossil
3) The volumes of the cups
(big and small)
4) The length of this room
5) The mass of the chalk
6) The volume of the frog
7) The length of your finger
8) The mass of your shoe
9) The volume of your hand
10) Choice – choose what and how to measure something in the classroom