1. Meters, Grams and Liters
The Metric System
Meters, Grams and Liters

2. The Metric System
Other countries and all scientists and engineers use the metric system for measurement.
Why is this important??

3. Metric Prefixes Prefix Symbol Factor Number Factor Word Kilo- k 1000
Metric Units
The metric system has prefix modifiers that are multiples of 10.
Prefix
Symbol
Factor Number
Factor Word
Kilo- k
1000
Thousand
Hecto- h
100
Hundred
Deca-
da or dk 10
Ten
base
m, l, or g 1
One
Deci- d .1
Tenth
Centi- c
.01
Hundredth
Milli- m
.001
thousandth

4. Place Values of Metric Prefixes
Thousand
Hundred
Ten
One
Tenth
Hundredth
Thousandth km kg kL hm hg hL
dkm
dkg
dkL m g L dm dg dL cm cg cL mm mg mL

5. Meters Meters measure length or distance
One millimeter is about the thickness of a dime.

6. Meters One centimeter is about the width of a large paper clip
or your fingernail.

7. Meters
A meter is about the width of a doorway

8. Meters A kilometer is about six city blocks or 10 football fields.
1.6 kilometers is about 1 mile

9. Gram
Grams are used to measure mass of an object.

10. Grams
A milligram weighs about as much as a grain of salt.

11. Grams 1 gram weighs about as much as a small paper clip.
1 kilogram weighs about as much as 6 apples or 2 pounds.

12. Liters
Liters measure liquids or capacity.
2 Liter Soda

13. Liter
1 milliliter is about the amount of one drop

14. Liter
1 liter is half of a 2 liter bottle of Coke or other soda

15. Liter
A kiloliter would be about liter bottles of pop

16. What unit would you
use to measure each of
the following items?

17. Which unit would you use to measure the length of a school bus?
km m cm mm

18. Which unit would you use to measure the mass of a quarter?
km g cL mg

19. Which unit would you use to measure the mass of a whole watermelon?
kg g cL mg

20. Which unit would you use to measure the water in an aquarium?
L m cL mg

21. Which unit would you use to measure the mass of a feather?
L m cL mg

22. Which unit would you use to measure the mass of a student?
kg g cL mg

23. Which unit would you use to measure the mass of an egg?
kg g mm mg

24. Which unit would you use to measure a can of soup?
kL L mm mL

25. Which unit would you use to measure this glass of milk?
kL L cL mL

26. Which unit would you use to measure the distance across Georgia?
km m cm mL

27. Which unit would you use to measure the height of a tree?
km m cm mm

28. Which unit would you use to measure the length of a bracelet?
km m cm mm

29. You are totally awesome!

30. Changing Metric Units
To change from one unit to another in the metric system you simply multiply or divide by a power of 10.

31. To change from a larger unit to a smaller unit, you need to multiply.
1 km x 1000 = 1000 m
1 m x 100 = 100 cm
1 cm x 10 = 10mm

32. Place Values of Metric Prefixes
Move the decimal point to the right to multiply.
Thousand
Hundred
Ten
One
Tenth
Hundredth
Thousandth km kL kg hm hL hg
dkm
dkL
dkg m L g dm dL dg cm cL cg mm mL mg

33. Place Values of Metric Prefixes
Thousand
Hundred
Ten
One
Tenth
Hundredth
Thousandth km kg kL hm hg hL
dkm
dkg
dkL m g L dm dg dL cm cg cL mm mg mL

34. To change from smaller units to larger units you divide by a power of ten.
1000mm ÷ 10 = 100cm
100cm ÷ 10 = 10dm
10dm ÷ 10 = 1m

35. Place Values of Metric Prefixes
Move the decimal point to the left to divide.
Thousand
Hundred
Ten
One
Tenth
Hundredth
Thousandth km kL kg hm hL hg
dkm
dkL
dkg m L g dm dL dg cm cL cg mm mL mg

36. Place Values of Metric Prefixeskm kg kL hm hg hL
dkm
dkg
dkL m g L dm dg dL cm cg cL mm mg mL
3km
30hm
300dkm
3000m 4L
30000dm
300000cm
12cm mm

38. Sorry!
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40. You're on a roll!!

41. Thumbs up!

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44. Awesome job!