METERS, GRAMS AND LITERS The Metric System METERS, GRAMS AND LITERS

DO NOW Turn in “First Day Stations”. Turn in missing handouts: syllabus, info sheet, safety contract signature form. Pick up Metric System Notes sheet. Get out your calculator.

ORDEAL BY CHEQUES

ORDEAL BY CHEQUES

ORDEAL BY CHEQUES

ORDEAL BY CHEQUES

THE METRIC SYSTEM The metric system is a measurement system based on our decimal (base 10) number system. All countries but the United States, Myanmar, and Liberia, and all scientists and engineers use the metric system for measurement.

ENGLISH VS METRIC SYSTEM We will not be doing conversions between English and metric but you should be familiar with some conversions so you can estimate better. 2.54cm = 1 inch 1.0 liter – 1.06 quart 1.0 pound = 2.2 kilograms

COMMON METRIC UNITS LENGTH, m distance between point A and B ruler, meter stick VOLUME, L amount of space an object takes up graduated cylinder, ruler MASS, g amount of matter in an object triple beam balance, electronic balance DENSITY, g/mL amount of mass in a given volume measure mass & volume, D = M / V TEMPERATURE, °C an indirect measure of heat thermometer

METRIC PREFIXES Prefix Symbol Factor Number Factor Word Kilo- k 1000 Metric Units The metric system has prefix modifiers that are multiples of 10. Prefix Symbol Factor Number Factor Word Kilo- k 1000 Thousand Hecto- h 100 Hundred Deca- da 10 Ten Unit m, L, g 1 One Deci- d 0.1 Tenth Centi- c 0.01 Hundredth Milli- m 0.001 thousandth

Place Values of Metric Prefixes Thousand Hundred Ten One Tenth Hundredth Thousandth km kg kL hm hg hL dam dag daL m g L dm dg dL cm cg cL mm mg mL

PRACTICE kilogram _______ liter _______ Write the correct abbreviation for each metric unit: kilogram _______ liter _______ meter _______ kilometer _______ gram _______ centimeter _______ milliliter _______ milligram _______ millimeter _______

METERS Meters measure length or distance One millimeter is about the thickness of a dime.

METERS One centimeter is about the width of a large paper clip or your fingernail.

METERS A meter is about the width of a doorway

METERS A kilometer is about six city blocks or 10 football fields. 1.6 kilometers is about 1 mile

GRAM Grams are used to measure mass of an object.

GRAMS A milligram weighs about as much as a grain of salt.

GRAMS 1 gram weighs about as much as a small paper clip. 1 kilogram weighs about as much as 6 apples or 2.2 pounds.

LITERS Liters measure liquids or capacity. 2 Liter Soda

LITER 1 milliliter is about the amount of twenty drops

LITER 1 liter is half of a 2 liter bottle of Coke® or two Dasani® water bottles

LITER A kiloliter would be about 500 2-liter bottles of pop

What unit would you use to measure each of the following items?

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

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

Which unit would you use to measure the water in an aquarium? L m cL mg

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

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

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

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

Which unit would you use to measure a can of soup? kL L mm mL

Which unit would you use to measure this glass of milk? kL L cL mL

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

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

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CHANGING METRIC UNITS To change from one unit to another in the metric system you simply multiply or divide by a power of 10.

To change from a larger unit to a smaller unit, you need to multiply. 1 km x 1000 = 1000 m 1 m x 100 = 100 cm 1 cm x 10 = 10mm

Place Values of Metric Prefixes Move the decimal point to the right to multiply. Thousand Hundred Ten One Tenth Hundredth Thousandth km kL kg hm hL hg dkm dkL dkg m L g dm dL dg cm cL cg mm mL mg

Place Values of Metric Prefixes Thousand Hundred Ten One Tenth Hundredth Thousandth km kg kL hm hg hL dkm dkg dkL m g L dm dg dL cm cg cL mm mg mL

To change from smaller units to larger units you divide by a power of ten. 1000mm ÷ 10 = 100cm 100cm ÷ 10 = 10dm 10dm ÷ 10 = 1m

Place Values of Metric Prefixes Move the decimal point to the left to divide. Thousand Hundred Ten One Tenth Hundredth Thousandth km kL kg hm hL hg dkm dkL dkg m L g dm dL dg cm cL cg mm mL mg

PLACE VALUES OF METRIC PREFIXES km kg kL hm hg hL dkm dkg dkL m g L dm dg dL cm cg cL mm mg mL 3km 30hm 300dkm 3000m 4L 30000dm 300000cm 12cm 3000000mm

TO DO Complete the back side of the notes for practice.

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