TOPIC: MeasurementAIM: How is the metric system used to make measurements?

What is a unit?

• A known amount of measurement

• Yard, mile, meter, pound, gram, liter

Systems ofmeasuremen

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• 1. METRIC SYSTEM

• Used by most of the world

• SI = Systems International

•2. ENGLISH SYSTEM •inch, foot, yard, pound

SI Units

1.LENGTH

•METER (m)

•1 m = 100 centimeters (cm)

•1 cm = 1/100 m = 0.01m

•1cm = 10 millimeters•1m = 1000 millimeters

1 mm = width of a dime

•1 kilometer (km) = 1000m

•1m = 1/1000 km =0.001m

MASS

•Amount of matter an object has

•GRAM (g or gm)

•1 kilogram (kg) = 1000gm

Volume•Amount of space an object takes up

•LITER (L)

•1000 milliliters (mL) = 1 L

PREFIX •Comes before the unit

•Kilo = x 1000•1 kilometer (km) = 1000m

•1 kilogram (kg) = 1000 gm

•1 kiloliter (kl) = 1000 L

•Centi = 1/100 = 0.01

•1 cm = 0.01 m•1 cg = 0.01 gm

•Milli = 1/1000 = 0.001

•1 mm = 0.001•1 mL = 1/1000 L

CONVERSIONSEXAMPLES

1. 100 mm = ? cm

100 mm = 10cmMove 1 to the left

2. 34 km = ? mMove 3 to the right

34 km = 34,000 m

3. 257 cm = ? hm

Move 4 to the left

257 cm = 0.0257 hm

KiloHectoDecaMeter (base)

DeciCentiMilli

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