1. Standard I, Objective 1- Part 3: The Metric System
SCIENCE AHSGE
Standard I, Objective 1- Part 3: The Metric System

2. The Metric System System of measurement based on units of 10
Also known as- System International (SI)
Used by scientists worldwide
Allows for sharing info

3. Distance
Meter- base unit for distance measured with a ruler, meter stick, tape measure, etc.
Length:
Circumference- around circle
Diameter- across circle
Radius- ½ across a circle
Perimeter- around a space
Width:
Thickness
Height:
Tall, short, long
Area: A = L x W ( _m2)

4. Mass or Weight
Gram- base unit for mass/weight measured with a scale or balance
Mass- Amount of matter in an object
Never changes
Weight- Measure of gravity pulling downward on an object
Changes with gravity

5. Volume Liter- base unit for volume measured with a graduated cylinder
Measures liquid volume
Meniscus- Curvature in top of liquid
Caused by adhesion of water to sides of cylinder
Volume- amount of space an object takes up
Capacity
Use Fluid Displacement for irregular solid (sides not measurable)
Put known amount of liquid in grad. cyl.
Drop in object
Determine difference of volume
Use V = L x W x H ( _m3) for regular sides (measurable sides)
Use a ruler/meter stick, etc.

6. Fluid Displacement

7. K H D B D C M Metric Conversion **1cm3 = 1mL = 1g
Kilo- Hecto Deka Base Deci Centi Milli-
K_ H_ Da/Dk_ M/L/G D_ C_ M_
/10 or /100 or /1000 or
**1cm3 = 1mL = 1g