The Metric System. The Metric System. All scientific measurements are made using the Metric System. It is also called the SI System (La Systeme International d’Unites) The United States is the only major country that does not use this system. Very Easy To Use.
There are base units and prefixes
Based on10(10 and 100 and 1,000) so you multiply or divide by 10 when converting
It’s a decimalsystem… Can you think of a system we use every day that is adecimal system? ___________
Length (how long it is)meter
Volume (how much space it takes up)liter (for liquids) meter3 (for solids)
Mass (how much matter is in it)gram
Temp. (how much heat it has) °Celsius
Time (how long it takes)second
BASE UNIT 1
What’s a millimeter ?
About the thickness of a paperclip
What’s a centimeter?
About the width of your pinkie finger
What’s a meter?
Height from the floor to the door knob
The length of the yellow line in centimeters (there will be a decimal) is _______ cm
The length of the yellow line in millimeters (there will not be a decimal) is _______ mm
What’s a gram?
About the mass of a paperclip
What’s a kilogram?
About the mass of 2 loaves of bread
How do kilograms compare to pounds?
1 kg = about 2.2 pounds
Use the meniscus (lowest point of the water’s surface) to find the volume of the water (there will be a decimal). The volume is about _______ mL.
Think of it like a suitcase…
the more clothes you try to fit in a suitcase, the more packed it gets.
More packed = More dense
When you compare the density of two or more objects, the denser objects will sink below the less dense objects.
Spongebob Mac & Cheese Easter jelly beans
Red Swirly bowling ball
Spider Web bowling ball
REMEMBER: Denser objects sink below less dense objects!