Presentation on theme: "How to do Metric Conversions"— Presentation transcript:
1 How to do Metric Conversions Metric StairsHow to do Metric Conversions
2 Metric System System of measurement. Designed to be easy to use and universal. (built on powers of ten)Correct name is the “International System of Units”( or SI for short).
3 Built on a RootEach property of matter has a root word that is the base measurement for that property.For example:Grams (g) are for massLiters (L) are for volumeMeters (m) are for distance
4 Add a PrefixTo change the value of the root (make it bigger or smaller), you add a prefixSmallerMilli (m) – 1/1000 of the root (1000 times smaller)Centi (c) – 1/100 of the root (100 times smaller)Deci (d) – 1/10 of the root (10 times smaller)BiggerDeka (dk) – 10 times bigger than rootHecto (h) – 100 times bigger than rootKilo (k) – 1000 times bigger than root.
5 Easy ConversionsYou can use this simple drawing to convert any metric measurement to another metric measurement.The stairs have 7 steps going down left to rightkilo-hecto-deka-rootdeci-centi-milli-
6 How does it work?First, identify the prefixes you are being asked to convert between.Example: “Convert cm into hectometers”cm is centimeters and change is to hectometers.kilo-hecto-deka-rootdeci-centi-milli-
7 How does it Work? Next draw out the stairs. Third, put a mark on the starting prefix (centi in our example problem)kilo-hecto-deka-rootdeci-centi-milli-
8 How does it Work?Fourth, “walk” up/down the stairs to the prefix you are converting to (hecto in our example)Count the number of steps you traveled and note direction as either left or right.4Leftkilo-3hecto-2deka-1rootdeci-centi-milli-
9 How Does it WorkNow go to the original number (2.345) and move the decimal point the same direction and number of “steps” as you did on the stairs.Fill in empty spaces with zeroesAdd new prefix2.345hm4 spaces left
10 Practice Convert 4.3 km to meters Convert 462 cg to hg Convert 1 mL to kL