• List the unit you would use when measuring the following:– Length of your notebook– Height of the flag pole– Thickness of a human hair

Converting using exponents

• 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

1. Count the number of exponents you moved2. 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

ExampleConvert 250m to Kmm = 100 Km = 103

# of exponents moved = 3Unit got larger, number must get smallerMove decimal 3 to the left250m = .250Km

Practice1) 345g = __________mg2) 5656um = _______cm3) 12cm = _________mm4) 35.67KL = _______L5) 28.65m = ________cm6) 276000um = _____cm7) .0087Mg = _______Kg

8) 245600nm = ______m9) 5685.999mm = ___Km10) .0000786Km = ____cm11) 786mm = _______nm12) .0000456m = ____cm13) 4657.99ms = ____Ks14) .000000004657Km =

________um