Metric Measurements Science 6
Mrs. LaMar
Name:________________________ Date:__________________________
Why was the International System of
Units created?
The metric system was invented because countries were using many different systems of measurement causing confusion and lack of consistency.
Almost all countries, except
for the United States and a few others.
The United States uses the standard or customary.
So, what countries use the Metric System?
Why as scientists do we use SI?
We needed to be able to compare our data and results with other countries.
We are easily able to convert this system because of Base 10.
What are some of the measurements we will make using SI units?
• Length
• Volume
• Mass
• Temperature
• Time
• Density
• Weight
What type of unit do we measure each variable with?
Length = meters
Volume = liters/cm3
Mass = grams (kilograms)
Temperature = celsius (degree)
Time = seconds
Density = g/cm3
Weight = newtons
Length In SI our basic unit of length is the meter.
The four main length units we use in science are: millimeter, centimeter, meter and kilometer.
The main tool we use to measure length is the metric ruler or meter stick.
Length measures the distance from one point to another.
For smaller measurements we use a ruler which has centimeters and millimeters.
The shorter lines on the metric ruler are called…
millimeters (mm)
How many millimeters(mm) are in one centimeter(cm)?
Pick the appropriate unit for measuring each.
Nickel = millimeters
Ceiling = meters
Desk = centimeters
Doorway = meters
Distance to Disney = kilometers
Grain of rice = millimeters
Track = meters
THE METRIC CONVERSION CHART
Kilo 1000
units
Hecto 100
units
Deka 10
units
Basic Unit
Deci 0.1
units
Centi 0.01
units
Milli 0.001
units
To convert to a smaller unit, move decimal point to the right or
multiply.
To convert to a larger unit, move decimal point to the left or divide
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