Metric System

Metric SystemMetric System

Measurement and SIMeasurement and SI

Bell Work 8/16/10Bell Work 8/16/10

Please answer the following questions Please answer the following questions in the Bell Work section of your in the Bell Work section of your science journalscience journal

1.1. What instrument is used to What instrument is used to measure length?measure length?

2.2. Why do you think it is important to Why do you think it is important to know how to measure length?know how to measure length?

Metric SystemMetric System

1.1. Referred to as the international Referred to as the international system of units or SIsystem of units or SI

2.2. Based on the number 10Based on the number 10

3.3. Measuring system used by all Measuring system used by all scientistsscientists

4.4. Used to measure length, volume, Used to measure length, volume, mass, weight, density, and mass, weight, density, and temperaturetemperature

LengthLength1.1. Used to measure from one point to anotherUsed to measure from one point to another2.2. Instrument used to measure length is the Instrument used to measure length is the

metric rulermetric ruler3.3. Basic unit of length is the meterBasic unit of length is the meter

kilometer- kmkilometer- km hectometer- hmhectometer- hm decameter- damdecameter- dam meter-mmeter-m decimeter- dmdecimeter- dm centimeter- cmcentimeter- cm millimeter – mmmillimeter – mm

4.4. In space, distance is measured in light yearsIn space, distance is measured in light years A light year is the distance light travels in a yearA light year is the distance light travels in a year


1.1. What is the metric system used What is the metric system used to measure?to measure?

2.2. What is the metric system What is the metric system referred to as?referred to as?

3.3. What is the basic unit for length?What is the basic unit for length?4.4. In space, what is distance In space, what is distance

measured in?measured in?

Homework 8/17/10Homework 8/17/10

Practice measuring the following items Practice measuring the following items at your house. Remember to use at your house. Remember to use centimeters as your unit.centimeters as your unit.

1.1. The width of your front doorThe width of your front door

2.2. The height of a glass or cupThe height of a glass or cup

3.3. One item of your choiceOne item of your choice For each write down the item and the For each write down the item and the

measurement for the itemmeasurement for the item

Bell Work 8/18/10Bell Work 8/18/10Using a ruler and centimeters (cm) Using a ruler and centimeters (cm)

measure the length of the lines measure the length of the lines on the piece of paper at your on the piece of paper at your table. Please share with your table. Please share with your partner and don’t write on the partner and don’t write on the paper.paper.

Example: 6.3 cmExample: 6.3 cm Length of line 1:Length of line 1: Length of line 2:Length of line 2: Length of line 3:Length of line 3: Length of line 4:Length of line 4:

VolumeVolume1.1. Volume is the amount of space an object takes Volume is the amount of space an object takes

upup2.2. Volume can be measured for liquids and solids.Volume can be measured for liquids and solids.3.3. LiquidsLiquids

Basic unit of liquid volume is the liter (L)Basic unit of liquid volume is the liter (L) kiloliter – kLkiloliter – kL hectoliter – hLhectoliter – hL dekaliter – daLdekaliter – daL liter – Lliter – L deciliter – dLdeciliter – dL centiliter – cLcentiliter – cL millimeter – mLmillimeter – mL

4.4. The instrument used to measure liquid volume The instrument used to measure liquid volume is the is the graduated cylindergraduated cylinder

5.5. Meniscus – Measure to this line.Meniscus – Measure to this line.

Volume (cont.)Volume (cont.)6.6. SolidsSolids

Basic unit of solid volume is cubic Basic unit of solid volume is cubic meters (m^3)meters (m^3)

cubic kilometer- km^3cubic kilometer- km^3 cubic hectometer- hm^3cubic hectometer- hm^3 cubic decameter- dam^3cubic decameter- dam^3 cubic meter-m^3cubic meter-m^3 cubic decimeter- dm^3cubic decimeter- dm^3 cubic centimeter- cm^3cubic centimeter- cm^3 cubic millimeter – mm^3cubic millimeter – mm^3

Volume (cont.)Volume (cont.)7.7. To calculate the volume of a solidTo calculate the volume of a solid

length x width x heightlength x width x height l x w x hl x w x h Instrument used to measure solid volume is the Instrument used to measure solid volume is the

metric rulermetric ruler

8.8. Solid Volume can also be measured by Solid Volume can also be measured by water displacement using a water displacement using a graduated graduated cylindercylinder

1.1. Record the volume of water in the cylinderRecord the volume of water in the cylinder2.2. Place the object in the cylinder and record Place the object in the cylinder and record

the new volumethe new volume3.3. Measurement 2 – measurement 1 = volume Measurement 2 – measurement 1 = volume

of the objectof the object


1.1. What is volume?What is volume?

2.2. What is the basic unit for liquid What is the basic unit for liquid volume?volume?

3.3. What is the basic unit for solid What is the basic unit for solid volume?volume?

4.4. How do you calculate the volume of How do you calculate the volume of a solid?a solid?


1.1. What is the volume of a solid with What is the volume of a solid with these measurements?these measurements?

Length Length 3 cm3 cm width width 2 cm2 cm height height 4 4 cmcm

2.2. How do you find the volume of an How do you find the volume of an irregular solid?irregular solid?

MassMass1.1. Mass is the amount of matter in an object.Mass is the amount of matter in an object.2.2. Basic unit of mass is a gram (g)Basic unit of mass is a gram (g)3.3. Large objects are measured in kilograms (kg)Large objects are measured in kilograms (kg)4.4. Small objects are measured in grams (g) or Small objects are measured in grams (g) or

milligrams (mg)milligrams (mg) kilogram – kgkilogram – kg hectogram – hghectogram – hg dekagram – dagdekagram – dag gram – ggram – g decigram – dgdecigram – dg centigram – cgcentigram – cg milligram – mgmilligram – mg

5.5. Most often used are the kg, g, and the mgMost often used are the kg, g, and the mg6.6. Instrument used to measure mass is the Instrument used to measure mass is the triple triple

beam balancebeam balance

DensityDensity

1.1. Shows a relationship between mass Shows a relationship between mass and volumeand volume

2.2. To calculate density we divide mass To calculate density we divide mass by volume by volume

d=m/vd=m/v

3.3. Units for density depend on size of Units for density depend on size of objectobject

Large objects = kg/LLarge objects = kg/L Small objects = g/mLSmall objects = g/mL


1.1. What is mass?What is mass?

2.2. What instrument is used to find mass?What instrument is used to find mass?

3.3. What is density?What is density?

4.4. What is the formula used for density?What is the formula used for density?


1.1. What units are most often used for What units are most often used for mass?mass?

2.2. What units are used for density?What units are used for density?

TemperatureTemperature

1.1. Measured in degrees CelsiusMeasured in degrees Celsius

2.2. Freezing = 0 degrees CelsiusFreezing = 0 degrees Celsius

3.3. Boiling = 100 degrees CelsiusBoiling = 100 degrees Celsius


1.1. What instrument is used to What instrument is used to measure temperature?measure temperature?

2.2. What is the freezing point in What is the freezing point in degrees Celsius?degrees Celsius?

3.3. What is the boiling point in degrees What is the boiling point in degrees Celsius?Celsius?


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

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

3.3. How many centigrams are in 1 How many centigrams are in 1 gram?gram?

WeightWeight

1.1. Weight is the measure of Weight is the measure of attraction between objects attraction between objects due to gravity.due to gravity.

2.2. Basic unit of weight is the Basic unit of weight is the Newton (N)Newton (N)

Tools for MeasuringTools for Measuring

1.1. A A metric rulermetric ruler is used to find is used to find lengthlength

2.2. A A graduated cylindergraduated cylinder is used to fine is used to fine the the volumevolume of a liquid or an of a liquid or an irregular solidirregular solid

3.3. A A metric rulermetric ruler is used to find the is used to find the volumevolume of a rectangular object of a rectangular object

4.4. A A triple beam balancetriple beam balance is used to is used to find the find the massmass of an object of an object


1.1. 1000 g = ______ kg1000 g = ______ kg

2.2. 200 mL = ______ L200 mL = ______ L

3.3. 1 m = ______ Dkm1 m = ______ Dkm

4.4. 77 g = ______ mg77 g = ______ mg


1.1. 25 kg = ______ mg25 kg = ______ mg

2.2. 345 cL = ______ HL345 cL = ______ HL

3.3. 980 m = ______ mm980 m = ______ mm

4.4. 23700 g = ______ kg23700 g = ______ kg


1.1. 98 Hg = ______ mg98 Hg = ______ mg

2.2. 222 KL = ______ L222 KL = ______ L

3.3. 2706 mm = ______ Dkm2706 mm = ______ Dkm

4.4. 5 g = ______ kg5 g = ______ kg


What is the base unit for the following?What is the base unit for the following?

LengthLength VolumeVolume MassMass

Metric System

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