METERS GRAMS AND LITERS DO NOW Turn in

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. 54 cm = 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/m. L amount of mass in a given volume measure mass & volume, D = M / V TEMPERATURE, °C an indirect measure of heat thermometer

METRIC PREFIXES • Metric Units • The metric system has prefix modifiers that are multiples of 10. Prefix Symbol Factor Number Factor Word Kilo- k 1000 Thousand Hecto. Deca. Unit Deci. Centi. Milli- h da m, L, g d c m 100 10 1 0. 01 0. 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 dam dag da. L One hm hg h. L Ten Hundred Thousand km kg k. L mm mg m. L

PRACTICE 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.

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

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 c. L mg

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

Which unit would you use to measure a can of soup? k. L L mm m. L

Which unit would you use to measure this glass of milk? k. L L c. L m. L

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

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

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 = 10 mm

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

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

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

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

PLACE VALUES OF METRIC PREFIXES km kg k. L hm hg h. L dkm dkg dk. L m g L dm dg d. L cm cg c. L mm mg m. L 3 km 30 hm 300 dkm 30000 dm 300000 cm 3000000 mm 4 L 12 cm

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

Sorry! • That is not the BEST choice!