1. Measurement-A Common Language
Metric system.

2. Metric System
A system of measurement used by the majority of countries on Earth based on the number 10
Some times called the S.I. system

3. Basic Measurements Meter – measures length Liter – measures volume
Gram – measures mass

4. Converting Some times we need to go from one size to another size.
So we give each different size a pre-fix.

5. Metric Units

6. How to Convert
Step 1: Determine if you are going to go up or down the ladder.
Step 2: Determine how many steps there are from the units you started with to the units you need to get to.
Step 3: Move the decimal point the same amount of places and in the same direction as in steps 1 & 2.

7. TRY THIS USING THE STAIRCASE METHOD
.15 m = __________ mm

8. TRY THIS USING THE STAIRCASE METHOD
.15 m = __________ mm
150

9. Try Some
20 cm = _____ m
50 km = _____ cm
2mm = _____ cm

10. Complete the Table Below
Prefix
Meaning
Unit of Length
And Symbol
milli
one-hundredth
meter (m)
one-thousand

11. Complete the Table Below
Prefix
Meaning
Unit of Length
milli
One-thousandth
one-hundredth
meter
one-thousand

12. Complete the Table Below
Prefix
Meaning
Unit of Length
milli
One-thousandth
millimeter
one-hundredth
meter
one-thousand

13. Complete the Table Below
Prefix
Meaning
Unit of Length
milli
One-thousandth
millimeter
centi
one-hundredth
meter
one-thousand

14. Complete the Table Below
Prefix
Meaning
Unit of Length
milli
One-thousandth
millimeter
centi
one-hundredth
centimeter
meter
one-thousand

15. Complete the Table Below
Prefix
Meaning
Unit of Length
milli
One-thousandth
millimeter
centi
one-hundredth
centimeter
none
meter
one-thousand

16. Complete the Table Below
Prefix
Meaning
Unit of Length
milli
One-thousandth
millimeter
centi
one-hundredth
centimeter
none
one
meter
one-thousand

17. Complete the Table Below
Prefix
Meaning
Unit of Length
milli
One-thousandth
millimeter
centi
one-hundredth
centimeter
none
one
meter
kilo
one-thousand

18. Complete the Table Below
Prefix
Meaning
Unit of Length
milli
One-thousandth
millimeter
centi
one-hundredth
centimeter
none
one
meter
kilo
one-thousand
kilometer

19. Length
Measuring Length

20. What is length?
Length is the distance from one point to another

21. The two units that measure the length of smaller objects are, …
millimeter
centimeter

22. The longer lines on the metric ruler are called…
centimeters

23. The shorter lines on the metric ruler are called…
millimeters

24. One centimeter is divided into how many millimeters?
10 millimeters (mm)

25. Mass

26. Mass The measure of the amount of matter an object contains
Matter: The material that all objects and substances are made up of
Anything that has mass and takes up space is matter

27. How does a triple-beam balance work?
A triple-beam balance works by comparing the mass of the object you are measuring to a known mass
When you use a triple-beam balance, you:
Place the object on the pan
Shift the riders on the beams until them balance the mass of the object
Start with the large rider (increments of 100)
Next, the medium sized rider (increments of 10)
Lastly, the small rider (increments of 1)

28. Why do scientists prefer to use the mass of an object instead of its weight?
Scientists prefer to use an objects mass instead of its weight because mass does not change when the force of gravity does