Metric MeasurementsPortola Middle School

8th Grade Physical Science

Mr. Schmidt

Basic Units•Basic Units:Basic Units:

•Gram – MassGram – Mass

•Liter – VolumeLiter – Volume

•Meter - DistanceMeter - DistanceGramGram

LiterLiter

MeterMeter

Some Prefixes

GramGram

LiterLiter

MeterMeter

Basic Basic UnitsUnits

Deka -

10 units

Hecto -

100 units

Kilo -

1,000 units

Deci -

0.1 units

Centi -

0.01 units Milli -

0.001 units

To convert to a To convert to a largerlarger unit, move unit, move decimal one space over to the left.decimal one space over to the left.

To convert to a To convert to a smallersmaller unit, move unit, move decimal one space over to the right.decimal one space over to the right.

Convert Using The Ladder Method

1.) 1 kilometer = meters

2.) 1,000 milligrams = grams

3.) 1 liter = milliliters

4.) 200 centimeters = meters

5.) 500 meters = kilometers

Prefixes:Prefixes:•Kilo – 1,000 Kilo – 1,000

•Hecto – 100 Hecto – 100

•Deka – 10 Deka – 10

•Deci – 0.1Deci – 0.1

•Centi – 0.01 Centi – 0.01

•Milli -- .001Milli -- .001

Using the Ladder MethodUsing the Ladder Method

Warm-Up Question

1.1. How many centimeters are there in 1 meter?How many centimeters are there in 1 meter?

2.2. How many milliliters are there in 1 liter?How many milliliters are there in 1 liter?

3.3. How many meters are there in 4 kilometers?How many meters are there in 4 kilometers?

Warm-Up Answer

1.1. How many centimeters are there in 1 meter?How many centimeters are there in 1 meter?

1 meter = 100 centimeters

Warm-Up Answer

2. How many milliliters are there 2. How many milliliters are there in 1 liter?in 1 liter?

1,000 milliliters1,000 milliliters 1 Liter1 Liter

Warm-Up Answers

3. How many meters are there in 3. How many meters are there in 4 kilometers?4 kilometers?

1 kilometer = 1,000 meters

The question asks for how many meters in 4 kilometers? What do we have to do?

4 x 1,000 meters = 4 kilometers4 x 1,000 meters = 4 kilometers

Metric System

KEY VOCABULARY TERMS:KEY VOCABULARY TERMS:1. 1. MotionMotion – An object is in motion when its – An object is in motion when its

distance from another object is increasing.distance from another object is increasing.2. 2. Reference PointReference Point – A reference point is a – A reference point is a

place or object used for comparison to determine if place or object used for comparison to determine if something is in motionsomething is in motion

An object is in motion if it changes An object is in motion if it changes position relative to a reference point.position relative to a reference point.

Metric System

How Do We Measure Motion?How Do We Measure Motion? We use the We use the INTERNATIONAL SYSTEM of UNITS (SI)INTERNATIONAL SYSTEM of UNITS (SI)

What is the basic unit used for measuring What is the basic unit used for measuring LENGTH?LENGTH?

the the METERMETER

Metric SystemImportant Prefixes:Important Prefixes:

Kilo – One ThousandKilo – One Thousand Centi – One HundreCenti – One Hundrethth Milli – One ThousandMilli – One Thousandthth

1 meter = 1,000 millimeters

1 meter = 100 centimeters

1 centimeter = 10 millimeters

1,000 millimeters = 100 centimeters = 1 meter

1 kilometer = 1,000 meters

For Extra Credit:How many centimeters are there in 1 kilometer?

100 centimeters x 1,000 meters = 100 centimeters x 1,000 meters = 100,000 centimeters100,000 centimeters

Metric System

What is the basic unit used for measuring What is the basic unit used for measuring Mass?Mass?

the the GRAMGRAM

Mass is the amount of matter in an object.

Metric SystemImportant Prefixes:Important Prefixes:

Kilo – One ThousandKilo – One Thousand Centi – One HundreCenti – One Hundrethth Milli – One ThousandMilli – One Thousandthth

1 gram = 1,000 milligrams

1,000 grams = 1 kilogram

1 kilogram = 1,000 grams = ? milligrams

For Extra Credit:How many milligrams are there in 1 kilogram?

1,000 grams x 1,000 milligrams = 1,000 grams x 1,000 milligrams = 1,000,000 milligrams1,000,000 milligrams

Metric System

What is the basic unit used for measuring What is the basic unit used for measuring Volume?Volume?

the the LITERLITER

Metric SystemImportant Prefixes:Important Prefixes:

Kilo – One ThousandKilo – One Thousand Centi – One HundreCenti – One Hundrethth Milli – One ThousandMilli – One Thousandthth

1 Liter = 1,000 milliliters For Extra Credit:How many liters are in 1 kiloliter?

1 Liter x 1,000 = 1 kiloliter1 Liter x 1,000 = 1 kiloliter

Classwork1. The Eiffel Tower is 300 meters tall. How tall is the Eiffel Tower in Centimeters?

2. What unit of length would you use to measure the distance between Paris and Rome?

3. What unit of mass would you use to measure the mass of:a.) Baseballb.) Person

Homework Based on your knowledge and reasoning ability please answer the following questions:

1. What does each unit represent.

a.) mm = b.) cm =

c.) mL = d.) km =

2. How much does each one equal?

a.) 1 m = cm b.) 1 cm = mm

c.) 1 L = mL d.) 100 mm = cm

3. Which measurement is the largest. (Circle your answer)

a.) 145 m or 145 km b.) 150 cm or 150 m

c.) 2 liters or 1,500 mL d.) 2,000 g or 2 kg

Classwork Answers1. The Eiffel Tower is 300 meters tall. How tall is the Eiffel Tower in Centimeters?

2. What unit of length would you use to measure the distance between Paris and Rome?

3. What unit of mass would you use to measure the mass of:a.) Baseballb.) Person

1 meter = 100 centimeters

300 meters = 30,000 cm

Kilometers

Grams

Kilograms

Homework Based on your knowledge and reasoning ability please answer the following questions:

1. What does each unit represent.

a.) mm = millimeter b.) cm = centimeter

c.) mL = milliliter d.) km = kilometer

2. How much does each one equal?

a.) 1 m = 100 cm b.) 1 cm = 10 mm

c.) 1 L = 1,000 mL d.) 100 mm = 10 cm

3. Which measurement is the largest. (Circle your answer)

a.) 145 m or 145 km b.) 150 cm or 150 m

c.) 2 liters or 1,500 mL d.) 2,000 g or 2 kg 2,000g = 2kg