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

Metric Units and Prefixes Converting using exponents

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

Conversion number line

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

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

Converting between units Practice 345g = __________mg 5656um = _______cm 12cm = _________mm 35.67KL = _______L 28.65m = ________cm 276000um = _____cm .0087Mg = _______Kg 245600nm = ______m 5685.999mm = ___Km .0000786Km = ____cm 786mm = _______nm .0000456m = ____cm 4657.99ms = ____Ks .000000004657Km = ________um