1. Do now List the unit you would use when measuring the following:
Length of your notebook
Height of the flag pole
Thickness of a human hair

2. Metric Units and Prefixes
Converting using exponents

3. Metric base units Time (s) seconds Length (m) meters Mass (g) grams
The quantity of matter in a object
Volume (L) liters
The amount of space an object occupies

4. Conversion number line

5. Converting between units
Count the number of exponents you moved
Move decimal the same as the # of exponents
If unit gets larger, move decimal to make # smaller
If unit gets small, move decimal to make # larger
What ever happens to the unit, do the opposite to the number

6. Converting between units
Example Convert 250m to Km m = 100 Km = 103 # of exponents moved = 3 Unit got larger, number must get smaller Move decimal 3 to the left 250m = .250Km

7. Converting between units
Practice
345g = __________mg
5656um = _______cm
12cm = _________mm
35.67KL = _______L
28.65m = ________cm
276000um = _____cm
.0087Mg = _______Kg
245600nm = ______m
mm = ___Km
Km = ____cm
786mm = _______nm
m = ____cm
ms = ____Ks
Km = ________um