Measuring Metric Units Capacity Metric System The metric

Measuring Metric Units: Capacity

Metric System • The metric system is based on a base unit that corresponds to a certain kind of measurement • Length = meter • Volume = liter • Weight (Mass) = gram • Prefixes plus base units make up the metric system – Example: • Centi + meter = Centimeter • Kilo + liter = Kiloliter

The Metric System • The metric system is a based on our decimal (base 10) number system. • Other countries and all scientists and engineers use the metric system for measurement.

Metric Prefixes • Metric Units • The metric system has prefix that are multiples of 10. Prefix Symbol Factor Number Factor Word Kilo- k 1000 Thousand Hecto. Deca. Unit Deci. Centi. Milli- h da or dk m, l, or g d c m 100 10 1. 1. 001 Hundred Ten One Tenth Hundredth thousandth

Place Values of Metric Prefixes cm cg c. L Thousandth dm dg d. L Hundredth m g L Tenth dkm dkg dk. L One hm hg h. L Ten Hundred Thousand km kg k. L mm mg m. L

Metric System • The three prefixes that we will use the most are: – kilo – centi – milli Base Units kilo hecto deca meter gram liter deci centi milli

LENGTH km m dm cm mm • A kilo(1000)meter is about 10 football fields. • 1. 6 kilometers is about 1 mile

LENGTH km m dm cm • Meters (1) measure length or distance. • Think of a meter stick. • About the length of a doorway. mm

LENGTH km m dm cm mm • A deci(. 1)meter is about the width of your palm.

LENGTH km m dm cm mm • One centi(. 01)meter is about the width of a large paper clip. • or your fingernail.

LENGTH km m dm cm mm • One milli(. 001)meter is about the thickness of a dime

LENGTH km X 10 m dm cm mm

Which unit would you use to measure the length of this bicycle? km m cm mm

Which unit would you use to measure the distance across Kansas? km m cm m. L

Which unit would you use to measure the height of a tree? km m cm mm

Which unit would you use to measure the length of a bracelet? km m cm mm

MASS • Grams are used to measure mass or the weight of an object.

MASS • A kilo(1000)gram weighs about as much as 6 apples or 2 pounds.

MASS • 1 gram weighs about as much as a small paper clip.

MASS • A milli(. 001)gram weighs about as much as a grain of salt.

Which unit would you use to measure the mass of a penny? km g c. L mg

Which unit would you use to measure the mass of a feather? L m c. L mg

Which unit would you use to measure the mass of a student desk? kg g c. L mg

Which unit would you use to measure the mass of a whole watermelon? kg g c. L mg

Which unit would you use to measure the mass of an egg? kg g mm mg

VOLUME • Liters measure liquids or capacity.

VOLUME • A kilo(1000)liter would be about 500 2 -liter bottles of soda

VOLUME • 1 liter is half of a 2 liter bottle of Coke or other soda

VOLUME • 1 milli(. 001)liter is about the amount of one drop

For each item write m. L or L and then tell why you chose this measurement as the most reasonable. A. B. C. D. E. F.

Each of these could be measured by using m. L. -----> <------ Each of these could be measured by using L.

Sorry! • That is not the BEST choice!