1. Measurement!

2. Remember the definition of Chemistry…
Chemistry is the study of matter and the changes that it undergoes.
A change in matter = a change in its energy
So – we measure matter and we also measure energy

3. Metric System!
The scientific system of measurement that makes math easier than does the English system because it’s based on multiplying and dividing by 10 (within a certain quantity).
It’s also better because the French thought of it first.

4. The Metric System Base Units
Quantity
Unit
Unit symbol
Length
meter m
Mass
gram g
Time
second s
Amount
mole
mol
Electric current
ampere A
Luminous intensity
candela cd

5. Tools of the trade that we’ll use here at Poly

6. Quantity being measured
Copy this chart and fill in as we go along:
Quantity being measured
Tool
Tool’s Unit

7. Two for Volume: Beaker: Graduated Cylinder:
*** Basic unit for volume is the liter, but beakers and graduated cylinders give you volume in milliliters (mL).
1000 mL = 1 L

8. Time
A chronometer, ok a clock, gives you time in seconds (s).

9. Temperature
A thermometer gives you temperature in degrees Celsius (˚C).

10. Mass
A triple beam balance gives you mass in grams (g).

11. Length
A ruler will give you distance in centimeters (cm) and millimeters (mm).
100 cm = 1 meter
1000 mm = 1 meter

12. Quantity being measured
Tool
Tool’s Unit
Volume
Beaker
milliliter (mL)
Graduated Cylinder
milliliter (mL)
Time
Chronometer
seconds (s)
Temperature*
Thermometer
degrees Celsius (˚C)
Mass
Triple beam balance
grams (g)
Length
Ruler
centimeters (cm) millimeters (mm)