1. Measuring Using The Metric System

2. The English System The system of measurement the United States uses.
Uses inches, feet, yards, and miles to measure length
Uses ounces and pounds to measure mass
Uses ounces and gallons to measure volume

4. The Metric System Uses units based on multiples of ten
Gets its name from the basic unit of length, the meter.
Historically, the meter was defined by the French Academy of Sciences as the length between two marks on a platinum-iridium bar, which was designed to represent one ten-millionth of the distance from the Equator to the North Pole through Paris.
In 1983, the meter was redefined as the distance traveled by light in free space in 1⁄299,792,458 of a second.

5. Base Units of the Metric System
Length: Meter (m)
Volume: Liter (l)
Mass: Gram (g)

6. Metric Prefixes
The metric system uses prefixes that represent a relationship to the base unit
The prefixes are:

7. milli (m) = 1/1000 of the base unit
centi (c) = 1/100 of the base unit
deci (d) = 1/10 of the base unit
BASE UNIT = 1
deka (da) = 10 times the base unit
hecto (h) = 100 times the base unit
kilo (k) = 1000 times the base unit

8. Metric Conversions
You can use the metric prefixes to change from one length, mass, or volume to another in the metric system
For example, if you measure the length of the table to be 3.2 meters, you can convert it to centimeters and express it as 320 centimeters.
You can use the acronym King Henry Died By Drinking Chocolate Milk to help you make these conversions.

9. Volume Volume is the amount of space a substance occupies
Volume is measured using a graduated cylinder
The units used to measure the volume of a liquid are milliliters (ml)

10. The units used to measure the volume of a solid are cubic centimeters (cm3)
The formula used to calculate the volume of a solid is
Length x Width x Height
Remember that 1 ml = 1 cm3

11. Find the volume of the object below:
Length = 12 cm
Width = 3 cm
Height = 3 cm
Volume = length x width x height
Volume = 12 cm x 3 cm x 3 cm
Volume = 108 cm3

12. Metric System
English System