1. Measuring in International system (SI)

2. LEngth English vs metric Which is longer? 1 mile or 1 kilometer
1.6 kilometers
1 mile
English vs metric
1 inch = 2.54 centimeters
Which is longer?
1 mile or 1 kilometer
1 yard or 1 meter
1 inch or 1 centimeter
1 yard = meters

3. LEngth km mm cm m Basic unit of length: meter (m)
Distance from one end of an object to the other end or from one point to another
Basic unit of length: meter (m)

4. Mass Which is larger? 1 Pound or 100 Grams 1 Kilogram or 1 Pound
1 Ounce or 1000 Milligrams
1 pound = grams
100 kilogram = 220 pounds
1 ounce of gold = 28,349.5 milligrams

5. How much MATTER an object has
Mass kg g cg mg
How much MATTER an object has
Basic unit of mass: gram (g)

6. Volume Which is larger? 1 liter or 1 gallon 1 liter or 1 quart
1 milliliter or 1 fluid ounce
1 fl oz = ml
1 12-oz can of soda would equal approximately 355 ml.
1 quart = liters
1 gallon = 3.79 liters
It would take approximately 3 ¾ 1-liter bottles to equal a gallon.

7. How much SPACE an object takes up
Volume kL L cL mL
How much SPACE an object takes up
Basic unit of mass: Liter (L)

8. Volume **1 cm3 = 1 mL** V= l x w x h V= 36cm3
Volume of cubes & rectangular prisms:
V= 36cm3 cm cm cm
**1 cm3 = 1 mL**

9. Volume Volume of irregularly shaped objects: hint: it involves water
Water Displacement Method:
-the difference in water levels from water by itself and water with object is the volume of object
meniscus

10. So why S.I.? Used by scientists world wide
Much easier to convert -- based on units of 10
Give examples of why base unit of 10 is simpler (4.1x10 = 41; 4.1x100 =410; 4.1/10 = 0.41 etc)

11. Prefixes Kilo 1000 Hecto 100 Deka 10 Deci 1/10 or 0.1
Centi 1/100 or 0.01
Milli 1/1000 or 0.001

12. Also works with liters (L)
SO how does that help?
1000m = 1 kilometer (km)
100m = 1 hectometer (hm)
0.01m = 1 centimeter (cm)
1000g = 1 kilogram (kg)
100g = 1 hectogram (hg)
0.01g = 1 centigram (cg)
Or… 1m = 100cm
Or… 1g = 100cg
Also works with liters (L)

13. Easy Conversions… 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

14. Bigger numbers… ____quarters = ___dollar ____km =____m ____hg = ____mg
____cL = ____mL

15. Practice < > = > = < Compare using <, >, or =.
63 cm m g mg ,500 mL L
536 cm dm mg g m cm
<
> =
> =
<