12/18/2015 english system metric/si system metric system - developed in the late 1700’s - based on...
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Thinking Metric
No Converting Allowed!!!
04/21/23
•English System
•Metric/SI System
Metric System
- developed in the late 1700’s
- based on multiples of ten
SI System
- known as the International System of
Units
- developed in 1960 as an improved version of the
metric system
LengthBase Unit = meter (m)
What tool is used to measure length in the metric system???
Meter stick
How big is a meter?
One meter is about the height of a doorknob.
Approximately how tall are you in meters??
One centimeter (1cm) is about the width of your little finger or the diameter of an aspirin.
km hm dkm m dm cm mm
One millimeter (1mm) is about the thickness of a dime.
VOLUME- amount of space occupied by
an object
Volume of a Solid
BASE UNIT:
cubic meter (m3)
Regularly shaped solid (i.e. cube, sphere, pyramid, etc.)
- Use the formula for the object
For Example:Volume of a box = length x width x height
= 8
=4Height
=2
= 8 x 4 x 2
= 64
Irregularly shaped object (i.e. stone, pencil, etc.) Displacement- Use water and a measuring device (beaker, graduated cylinder, etc.)
A. B.
Volume of a Liquid
Base Unit: Liter (l)
1 liter = 1 L
A liter is just slightlylarger than a quart.
1 liter of waterwill weigh 1 kilogram
kL hL daL L dL cL mL
A medicine eyedropper will hold 1 milliliter = 1 mL (about 10 drops of water)
1 tsp will hold approximately 5 milliliters
kL hL daL L dL cL mL
Measuring a Liquid’s Volume
• 1) Graduated Cylinders
• 2) Beakers
• 3) Flasks
Using a Graduated Cylinder
You must read the bottom of the meniscus
Curved line that forms at the edges of liquid
Always Read at Eye Level
The End