1. Introduction to METRIC MEASUREMENT

2. What is Matter? Can you think of examples of matter?
Matter is anything that takes up space

3. All matter has Mass What IS mass?
Mass is the amount of material that an object has.

4. Tools of Scientists Scientists answer questions by doing experiments
To do experiments/observations, scientists need tools

5. Put your name on a piece of paper and number it from 1 through 6 and try to name each of these scientific tools and what you think they do.

6. Metric System The three metric bases that we will use are:
Meter (length)
Gram (mass)
Liter (liquid volume)
kilo
hecto
deka
Base Units
meter
gram
liter
deci
centi
milli

7. Metric System
So if you needed to measure length you would choose meter as your base unit
Length of a tree branch
1.5 meters
Length of a room
5 meters
Length of a ball of twine stretched out
25 meters

8. Metric System
But what if you need to measure a longer distance, like from your house to school?
Let’s say you live approximately 10 miles from school
10 miles = meters
16093 is a big number, but what if you could add a PREFIX onto the base unit to make it easier to manage:
16093 meters = kilometers (or 16.1 if rounded to 1 decimal place)

9. Metric System
These prefixes are based on multiples of 10. What does this mean?
From each prefix every “step” is either:
10 times larger or
10 times smaller
For example
Centimeters are 10 times larger than millimeters
1 centimeter = 10 millimeters
kilo
hecto
deka
Base Units
meter
gram
liter
deci
centi
milli

10. Metric System
Centimeters are 10 times larger than millimeters so it takes more millimeters for the same length
1 centimeter = 10 millimeters
Example not to scale 40 41

11. Metric System
An easy way to move within the metric system is by moving the decimal point one place for each “step” desired
Example: change meters to centimeters
Since we are going from a bigger measurement to a smaller measurement we move the decimal point to the right
1.0 meter = 10 decimeters = 100 centimeters

12. Metric System
Now let’s try an example going from meters to kilometers:
Since we are going from meters to a larger kilometer measurement we move left one space for every “step” from the base unit to kilo
16093 meters = kilometers
(the same direction as in the diagram below)
kilo
hecto
deka
meter
liter
gram
deci
centi
milli

13. Metric System
Now let’s start from centimeters and convert to kilometers
centimeters = 4 kilometers
centimeters = kilometers
kilo
hecto
deka
meter
liter
gram
deci
centi
milli

14. Metric System Now let’s start from meters and convert to kilometers
4000 meters = 4 kilometers
kilo
hecto
deka
meter
liter
gram
deci
centi
milli
Now let’s start from centimeters and convert to meters
4000 centimeters = 40 meters
kilo
hecto
deka
meter
liter
gram
deci
centi
milli

15. Metric System
Now let’s start from kilometers and convert to millimeters
4 kilometers = millimeters or
4 kilometers = 40 hectometers = 400 dekameters
= 4000 meters = decimeters
= centimeters = millimeters
kilo
hecto
deka
meter
liter
gram
deci
centi
milli

16. Metric System Now let’s start from meters and convert to centimeters
5 meters = 500 centimeters
kilo
hecto
deka
meter
liter
gram
deci
centi
milli
Now let’s start from kilometers and convert to meters
.3 kilometers = 300 meters
kilo
hecto
deka
meter
liter
gram
deci
centi
milli

17. Metric System Base units in the metric system are meter, liter, gram
Summary
Base units in the metric system are meter, liter, gram
Metric system is based on multiples of 10
For conversions within the metric system, each “step” is 1 decimal place to the right or left depending on if the measurement is larger or smaller than the one you started off with
kilo
hecto
deca
meter
liter
gram
deci
centi
milli

18. Metric Base Units Length = meter Mass = grams
Volume of a liquid = Liters
Volume of a Solid = cm3

19. Look at your meter stick
What lines show milimeters (mm)?
What lines show centimeters (cm)?
What would you measure with this?
Length, mass or volume?

20. Metric units are very nice to work with, since they are all multiples of ten of each other. You can convert between the various different sizes by merely moving the decimal point the correct number of places.
10 millimeters = 1 centimeter
10 centimeter = 1 decimeter
10 decimeters = 1 meter
10 meters = 1 dekameter
10 deka meters = 1 hectometer
10 hectometers = 1 kilometer

21. To remember the prefixes in order, you can use the following sentence:
King Henry Doesn't [Usually] Drink Chocolate Milk
Kilo Hecto Deka Unit Deci Centi Mili
Base /10 1/ /1000