MeasuringMeasuringLiquid VolumeLiquid VolumeTemperatureTemperature

DensityDensityObservation Observation

InferenceInferenceQuantitativeQuantitativeQualitativeQualitative

Review:Review:

1.1. Everything is made of _________________.Everything is made of _________________.

2.2. ________________ is described as anything that ________________ is described as anything that has volume and mass. has volume and mass.

3.3. Volume is ___________________________.Volume is ___________________________.

4.4. Volume can be measured in two waysVolume can be measured in two ways1.1. __________________________________________________________________________

2.2. __________________________________________________________________________

Matter

Matter

The amount of space an object takes up

Direct measurement w/ ruler (cm3)Water displacement (mL)

Review: Review:

5.5. You need the _________, _________, ________ of You need the _________, _________, ________ of a solid regular object to find volume. a solid regular object to find volume.

6.6. 1mL equals ______ cm1mL equals ______ cm3 .3 .

Length width Height

1

Look at the Sheet with the 3 linesLook at the Sheet with the 3 lines Using the Using the cm or mmcm or mm side of the ruler measure each side of the ruler measure each

line to the nearest line to the nearest mm.mm.

Put the first line of the cm side at the end of the line Put the first line of the cm side at the end of the line on the paper. on the paper.

Measure how long the line is Measure how long the line is The line is 7.7 cm longThe line is 7.7 cm long If you can convert your cm to mm like thisIf you can convert your cm to mm like this 7.7 cm = 77 mm7.7 cm = 77 mm

What is the length of each line?What is the length of each line?Measure in cm and mmMeasure in cm and mm

1. ____________cm ____________mm1. ____________cm ____________mm

2. ____________cm ____________mm2. ____________cm ____________mm

3. ____________cm ___________mm3. ____________cm ___________mm

15.4 154

6.1 61

19.2 192

Measuring Area 

  Measure the area in cm.

Convert the cm to mm and find the new area.

  L W A L W A

1.            

2.            

3.            

11.5 3.6 41.4

2.7 6.5 17.82

2.7 2.7 7.29

115 36 4140.

27 65 1782

27 27 729.

Practice converting these LengthsPractice converting these Lengths

1. 17.4 cm or ______ mm1. 17.4 cm or ______ mm

2. ______ cm or 14 mm2. ______ cm or 14 mm

3. 9.5 cm or ______ mm3. 9.5 cm or ______ mm

4. ______ cm or 51 mm4. ______ cm or 51 mm

5. 12.7 cm or ______ mm5. 12.7 cm or ______ mm

174

1.4

95

5.1

127

2*2*4 =16 cm3

4*2*3 =24 cm3

1*1*4 =4 cm3 2*6*4 =48 cm3

HW Reading a Metric RulerHW Reading a Metric RulerHow many

cm mm

90.5 905

39.7 397

22.1 221

82.5 825

HW Reading a Metric RulerHW Reading a Metric RulerHow many

cm mm

67.9 679

87.1 871

32.3 323

44.1441

Liquid VolumeLiquid Volume& &

Volume of Irregular objectsVolume of Irregular objects

1mL 2mL .2 mL .5mL

25 mL 36 mL 5.4 mL 14 mL

Read the Glassware LabRead the Glassware Lab

Station Maximum Measurement

Minimum Measurement

Volume of water

B.

C.

D.

E.

F.

G.

H.

100 mL 100 mL <100 mL

225 mL 25 mL 150 mL

100 mL 1 mL 84 mL

500 mL 500 mL <500 mL

200 mL 25 mL 135 mL

10 mL .2 mL 3.8 mL

50 mL 1 mL 41 mL

Station Maximum Measurement

Minimum Measurement

Volume of water

I.

J.

1,000 mL 50 mL 552 mL

25 mL 25 mL < 25 mL

# of the block Mass of block g Order from most to least dense

1   2 - 2 2   1 - 17   3 - 79    4 - 9

46 128.218.59.5 to 13

Explain why you were able to order the blocks by density even though you only knew the mass.

You can use mass to organize the blocks because You can use mass to organize the blocks because the volume is the same for all blocks. See an the volume is the same for all blocks. See an example… example…

Blocks 1,2,7,9 all have a volume of 17.6 g/cmBlocks 1,2,7,9 all have a volume of 17.6 g/cm33 so so block two’s density is 128 / 17.6 = 7.28 and block block two’s density is 128 / 17.6 = 7.28 and block nine’s density is 9.5 / 17.6 = .5 nine’s density is 9.5 / 17.6 = .5

Only the mass changes so you can organise the Only the mass changes so you can organise the density by looking at only mass. density by looking at only mass.

K H Da Base D C M

1. 256 m = _____________ dam  2. 97.25 cm = _____________ mm  3. 952 dag = _____________ g  4. .574 m = _____________ mm  5. 5.287 dL = _____________ daL  

25.6

972.5

9,520.

574.

.05287

K H Da Base D C M 6. 785.3 km = _____________ m  7. 84.363 L = ____________ dL 8. 872 hm = _____________ mm 9. 95,824 dam = ___________ dm 10. 8.26 kL = _____________ dL

785,300.

843.63

87,200,000

9,582,400

82,600

6 mL 12 mL 1.6 mL 3.4 mL 4.5 mL

60 mL 30 mL .4 mL 2.66 mL 8 mL

3.2 mL 4 mL 4 mL 1.5 mL 5.2 mL

Practice with Practice with Liquid VolumeLiquid Volume

3 mL 18 mL .8 mL 3.8 mL 2 mL

30 mL 15 mL .6 mL 1.6 mL 12 mL

Finding Solid Volume Finding Solid Volume Through Water Through Water DisplacementDisplacement

7 mL 38 mL 33 mL 20 mL 40 mL

40 – 20 = 20 mL water and 20 mL rock

Place a known quantity of water in the GC. Add object calculate change in water level. Change in the mass of the object.

4 mL13 mL9 mL

5 mL4 mL

.4 mL 3 mL 1 mL

1.8 mL 8 mL 4 mL

16 mL 3 mL 9 mL

TemperatureTemperature

Measure of the average Kinetic Energy of the Measure of the average Kinetic Energy of the particles in a sample of matterparticles in a sample of matter

What is Kinetic Energy?What is Kinetic Energy?

The energy of motion. The energy of motion.

The units of TemperatureThe units of Temperature What Units are used in the US?What Units are used in the US? Fahrenheit FFahrenheit Foo Creator: Creator:

Daniel FahrenheitDaniel Fahrenheit What units are used in most of What units are used in most of

Europe?Europe? Celsius CCelsius Coo Creator: Creator: Anders CelsiusAnders Celsius What is the Celsius scale based on?What is the Celsius scale based on? What units are used by scientists? What units are used by scientists? Kelvin KKelvin K Why is Kelvin not in degrees? Why is Kelvin not in degrees?

KelvinKelvin

Developed by Lord Kelvin in the mid 1800’sDeveloped by Lord Kelvin in the mid 1800’s

What happens at absolute zero?What happens at absolute zero?

Absolute Zero is the lowest temperature. Absolute Zero is the lowest temperature.

It is the place where all atomic It is the place where all atomic

motion stops.motion stops.

What Countries still use Fahrenheit?What Countries still use Fahrenheit?

USAUSA BurmaBurma LiberiaLiberia Jamaica Jamaica Belize Belize

Fill in the table.Fill in the table.

Conversion Formulas

C to FC to F O F = ( 9/5 X C ) + 32

F to CF to C O C = 5/9 X ( F - 32 )

C to KC to K K = OC + 273

K to CK to C OC = K - 273

Hint: 9/5 = 1.8 & 5/9= .556

Fill in the table using the formulas. Fill in the table using the formulas.

Temperature ScalesTemperature ScalesFahrenheit Fahrenheit OO F F

CelsiusCelsiusOO C C

KelvinKelvin

KK

Water BoilsWater Boils 212

Body Body Temperature Temperature

37

Room Room Temperature Temperature

293

Water Water FreezesFreezes

98.6

100 373

310

68 20

32 0 273

Comparing the ScalesComparing the Scales

1. “1. “The weather forecaster predicts that today’s high will The weather forecaster predicts that today’s high will be 70 be 70 oo .” .”

Which scale is being used? ____________Which scale is being used? ____________

On the Celsius scale? ___________On the Celsius scale? ___________

On the Kelvin scale?____________On the Kelvin scale?____________

Fahrenheit

21.1 oC

294.1 K294.1 K

Comparing the ScalesComparing the Scales

2. “2. “It was so cold yesterday that the temperature only It was so cold yesterday that the temperature only reached 275!” reached 275!”

Which scale is being used? ____________Which scale is being used? ____________

On the Celsius scale? ___________On the Celsius scale? ___________

On the Fahrenheit scale?____________On the Fahrenheit scale?____________

Kelvin

2 oC

35.6 35.6 oo F F

Comparing the ScalesComparing the Scales

3. “3. “Today’s temperature of 42Today’s temperature of 42oo in Chicago set a record in Chicago set a record high for the month of August. high for the month of August.

Which scale is being used? ____________Which scale is being used? ____________

On the Kelvin scale? ___________On the Kelvin scale? ___________

On the Fahrenheit scale?____________On the Fahrenheit scale?____________

Celsius

315 K

107.6 107.6 oo F F

Temperature Homework Temperature Homework

1. 1. 100100 212212 373373

CelsiusCelsius Fahrenheit Fahrenheit KelvinKelvin

2. 2. 0 (freezing point)0 (freezing point) 3232 273273

3. 3. 3737 98.698.6 310310

4. 4. -273-273 -459-459 0 (0 (absolute zero)absolute zero)

5. 5. 2020 6868 293293

6. 6. 1212 53.653.6 285285

8. 8. -261.1-261.1 -437.8-437.8 1212

7. 7. -11.1-11.1 1212 262262

9. 9. 3030 8686 303303

CelsiusCelsius Fahrenheit Fahrenheit KelvinKelvin

12. 12. 5050 122122 323323

14. 14.

-223-223 -369-369 5050

10. 10. -1.1-1.1 3030 272272

11. 11.

-243-243 -405-405 3030

13. 13. 1010 5050 283283

15. 15. 7575 167167 348348

16.16. 23.823.8 7575 297297

17. 17. -198-198 -324-324 7575

Temperature Homework Temperature Homework CelsiusCelsius Fahrenheit Fahrenheit KelvinKelvin

19. 19. 148148 300300 422422

21. 21. Temperature: Average kinetic energy of the partoicles Temperature: Average kinetic energy of the partoicles in a substance. in a substance.

18. 18. 120120 248248 393393

20. 20. 26.826.8 80.380.3 300300

22. Absolute Zero: All Kinetic energy in a substance is 22. Absolute Zero: All Kinetic energy in a substance is gone. Temperature where all atomic motion stops. gone. Temperature where all atomic motion stops.

The numeric value is 0 K. The numeric value is 0 K.

Metric ConversionsMetric Conversions

KK HH DaDa BB DD CC MM

Base units are Meters, Liters, Grams, Watts, Base units are Meters, Liters, Grams, Watts, Newtons, and any other units we learn this Newtons, and any other units we learn this year. year.

ilo

ecto

eca

Base units

eci

enti

illi

KK HH DaDa BB DD CC MMKyle

Hates

Because

CostMoney

Dates

Dates

KK HH DaDa BB DD CC MM Let’s look at a metric ruler…Let’s look at a metric ruler… How many meters are in a meter?How many meters are in a meter? 11 How many How many decidecimeters are in a meter?meters are in a meter? 1010 How many How many centcentimeters are in a meter?imeters are in a meter? 100100 How many How many millimillimeters are in a meter?meters are in a meter? 10001000

KK HH DaDa BB DD CC MM Let’s look at a metric ruler in the other direction…Let’s look at a metric ruler in the other direction… How many meters are needed to make a How many meters are needed to make a decadecameter?meter? 1010 How many meters are needed to make a How many meters are needed to make a hectohectometer?meter? 100100 How many meters are needed to make a kHow many meters are needed to make a kiloilometer?meter? 10001000

47424.6mL= _____________hL47424.6mL= _____________hL Put your finger on the units that you are given Put your finger on the units that you are given

which are mL. which are mL. Move your finger left to hL, and count the Move your finger left to hL, and count the

number of moves. number of moves. Five to the left. Five to the left. Move the decimal the name number of places Move the decimal the name number of places

in the same direction. in the same direction.

KK HH DaDa BB DD CC MM

.474246

5.0342 kL= _____________L5.0342 kL= _____________L Put your finger on the units that you are given Put your finger on the units that you are given

which are kL. which are kL. Move your finger left to L, and count the Move your finger left to L, and count the

number of moves. number of moves. Three to the right. Three to the right. Move the decimal the name number of places Move the decimal the name number of places

in the same direction. in the same direction.

KK HH DaDa BB DD CC MM

5034.2

1. 1.

3770mL =_________L3770mL =_________L

2. 2.

9200L = _________kL9200L = _________kL

3. 3.

37g = ___________kg37g = ___________kg

4. 4.

5130L =________ kL5130L =________ kL

5.5.

3240mg = ________dg3240mg = ________dg

6.6.

6300m = ________km6300m = ________km

7. 7.

24.9kg ___________ g24.9kg ___________ g

8. 8.

430000g= ________hg430000g= ________hg9. 9.

23.044daL=_______ mL23.044daL=_______ mL

10. 10.

412L = _________ mL412L = _________ mL

11. 11.

230 L= __________kL230 L= __________kL

12. 12.

157.33cm= _______m157.33cm= _______m

13. 13.

210mL= ________daL210mL= ________daL

14. 14.

7298.3mL= _______L7298.3mL= _______L

15. 15.

1.23dam= _______cm1.23dam= _______cm

16. 16.

520L= __________dL520L= __________dL

17. 17.

165m= _________mm165m= _________mm

18. 18.

230cm= __________m230cm= __________m

19. 19.

417km = ________m417km = ________m

20. 20.

723.44mg= _______hg723.44mg= _______hg

21. 21.

281 m= _________mm281 m= _________mm

3.77 9.2 0.037

5.13 32.4 6.3

24,900 4,300 230,440

412,000 .23 1.5733

0.021 7.2983 1,230

5,200 165,000 2.3

417,000.0072344

281,000

Metric ConversionMetric Conversion1.  256 m = ___________ dam

2.  97.25 cm = ___________ mm

3.  952 dag = ___________ mg

4.  .574 m = ___________ cm

5.  5.287 dL = ___________ mL

6.  785.3 km = ___________ m

7.  84.363 km = __________ dm

8.  872 km = ___________ mm

9.  95,824 dam = _________ dm

10.  8.26 kL = ___________ dL

11.  36 mm = ___________ cm

12.  857 cm = ___________ mm

13.  8.52 mg = ___________ g

14.  975 hm = ___________ cm

15.  9,824 cm = ___________ m

16.  74.21 cm = __________ dam

17.  .254 g = ___________ kg

18.  96 mm = ___________ hm

19.  12.5 cm = ___________ m

20.  .85 mL = ___________ L

25.6

972.5

9,520,000

57.4

528.7

785,300

843,630

872,000,000

9,582,400

82,600

3.6

8,570

.00852

9,750,000

98.24

.07421

.000254

.00096

.125

.00085

21.  86 g = __________ mg

22.  87.2 mm = __________ cm

23.  1 dm = __________ cm

24.  973.5 cm = __________ dL

25.  .534 cm = __________ m

26.  984 g = __________ kg

27.  8.64 dam = __________ hm

28.  64.3 mL = __________ L

29.  8.47 km = __________ m

30.  74,201 mm = __________ km

Metric ConversionMetric Conversion31.  .24 mg = __________ kg

32.  7.4 kL = __________ L

33.  874 m = __________ cm

34.  1 hm = __________ km

35.  8.412 mg = __________ dg

36.  68.2 mg = __________ g

37.  8.5743 cm = __________ km

38.  95,870 dam = _________ mm

39.  547 kL = __________ mL

40.  6.5 km = __________ hm

Finding DensityFinding Density

Density WorksheetDensity Worksheet Density Density is the is the ratio ratio of the of the mass mass of the substance to of the substance to the the volume volume of the of the substance at a substance at a given temperature.given temperature.

Density has units Density has units

of of g/ cm3 or g/mL g/ cm3 or g/mL for liquids and for liquids and solids. solids.

D

M

V

Density Calculations Worksheet I

1. Find the unknown quantity1. Find the unknown quantity

A) D= 3 g/mL V=100mL M= ?

M= D * V

B) D= ? V= 950 mL M= 95 g

D= M/V

C) D= 0.5 g/cm3

V= ? M= 20 g

V= M/D

3 * 100=

300 g

95 / 950=

= .1 g/mL

20 / 0.5 =

= 40 cm3

2. 2. Find the unknown quantity (CONVERT FIRST to g or mL)

A) D= 24 g/mL V=1.2L=

____________mL

M= ?

M= D * V

B) D= ? V= 100 mL M= 1.5 kg____________ g

D= M/V

C) D= ? V= 0.52 L __________mL M= 500 mg____________g

D = M /V3 * 100=

300 g

1,500 / 100=

= 15 g/mL.5 / 520 =

= .00096 g/cm3

1,2001,500

520

.5

WORD PROBLEMSWORD PROBLEMS

2. Mercury metal is poured into a graduated cylinder that holds exactly 22.5 mL. The

mercury used to fill the cylinder weighs 306.0 g. From this information, calculate the density

of mercury.

D = M = 306 g = 13.6 g/mL V 22.5 mL

1. A block of aluminum occupies a volume of 15.0 mL and weighs

40.5 g. What is its density?

D = M = 40.5 g = 40.5 g = 2.7 g/cm3

V 15 mL 15 cm3

33. What is the weight of the ethanol that exactly fills a 200.0 mL container? The density of ethanol is 0.789 g/mL.

M = DxV = 0.789 g/mL x 200 mL = 157.8 g

4. A rectangular block of copper metal weighs 1896 g. The dimensions of the block are 8.4 cm by 5.5 cm by 4.6 cm. From this data, what is the density of copper? (hint: find the volume of a

block first)V = L x W x H = 8.4 cm x 5.5 cm x 4.6 cm = 212.52 cm3

 THEN

D = M = 1896 g = 8.92 g/mL V 212.52 cm3

5. What volume of silver metal will weigh exactly 2500.0 g. The density

of silver is 10.5 g/cm3.

V = M = 2500 g = 238.1 cm3

D 10.5 g/cm3

6. Find the mass of 250.0 mL of benzene. The density of benzene is

0.8765 g/mL.

M = DxV = 0.8765 g/mL x 250 mL = 219.13 g

7. A block of lead has dimensions of 4.50 cm by 5.20 cm by 6.00 cm. The

block weighs 1587 g. From this information, calculate the density of

lead.V = L x W x H = 4.5 cm x 5.2 cm x 6 cm = 140.4 cm3

D = M = 1587 g = 11.3 g/cm3 V 140.4 cm3

8. 28.5 g of iron shot is added to a graduated cylinder containing 45.50 mL of water (V1). The water level rises to the 49.10 mL (V2) mark. From this information, calculate the density of iron.V = V2 – V1 = 49.1 – 45.5 = 3.6 mL = 3.6 cm3

D = M = 28.5 g = 7.92 g/cm3 V 3.6 cm3

1. A Silver-colored coin has a mass of 18.9 grams and a volume of 1.12 mL. Is the coin pure silver? (Hint: The density of silver is 10.5 g/mL.)

Work Answer

D = D = MM 18.918.9

V 1.12V 1.12

16.9 g/mL16.9 g/mL

NoNo

2. What volume would a 0.871 gram sample of air occupy if the density of air is 1.29 g/L?

Work Answer

V = V = MM .871.871

D 1.29D 1.29 .68 L.68 L

Work Answer

D = D = MM 225225

V 236.6V 236.6

1. 1. .95g/mL .95g/mL

2. 2. yesyes

Work Answer

M= D * V 237 * 1.59M= D * V 237 * 1.59 376.8 g376.8 g

4. A cup of sugar has a volume of 237 mL. What is the mass of the cup of sugar if the density is 1.59 g/mL?

3. Pumice is volcanic rock that contains many trapped air bubbles. A 225 gram sample occupied 236.6 mL. 1. What is the density of pumice? 2. Will pumice float on water? The density of water is 1.0 g/mL.)

Work Answer

M= D * V 1 * 1 = 1 g/mLM= D * V 1 * 1 = 1 g/mL

1 * .68 = .68 g/mL1 * .68 = .68 g/mL

Water has more Water has more densitydensity

Work Answer

V = V = MM 175175

D .620D .620

282.25L282.25L

5. Which has the greater mass, 1 liter of water or l liter of gasoline? The density of water is 1.00 g/mL and that of gasoline is approximately 0.68 g/mL.

6. A crumpet recipe calls for 175 grams of flour. According to Julia Child's data, the density of flour is 0.620 g/mL. How many mL of flour are needed for this recipe?

Work Answer

D = D = MM 32.632.6

V 2.9V 2.9

11.2 11.2 g/cmg/cm33

7. A sample of lead is found to have a mass of 32.6 g. A graduated cylinder contains 2.8 mL of water. After the lead sample is added to the cylinder the water level reads 5.7 mL. Calculate the density of the lead sample.

8. From their density values, decide whether each of the following substances will sink or float when placed in sea water, which has a density of1.025 g/mL. Place an S on the

line if it sinks and an F on the line if it floats.

A. Gasoline 0.66 g/mL ________ B. Asphalt l.2 g/cm3 __________

C. Mercury 13.6 g/mL __________D. Cork 0.26 g/ cm3 __________

E. Distilled water 1 g/mL ______ F.Plastic Bag .88 g/ cm3 ________

Float Sink

Sink Float

Float Float

Observation InferenceObservation Inference

Observations vs. InferencesObservations vs. InferencesObservations:Observations: Something that you experience with your 5 Something that you experience with your 5

senses senses

Inferences:Inferences: a statement, conclusion or reflection a statement, conclusion or reflection

Quantitative:Quantitative: an observation that is expressed using an observation that is expressed using numbers numbers

QualitativeQualitative: An observation that is described in terms of : An observation that is described in terms of the qualities of the object (made using 5 senses)the qualities of the object (made using 5 senses)

REMEMBER!REMEMBER! Observations must be Observations must be specificspecific and and accurateaccurate, not , not

relative, so that it means the same to everyone. relative, so that it means the same to everyone. ExampleExample: :

Incorrect - the burning bag smelled Incorrect - the burning bag smelled nastynasty Correct - the burning bag smelled Correct - the burning bag smelled similar to rotten eggssimilar to rotten eggs

QualitativeQualitative observationsobservations – – Example: Mr. Jones has blue eyes Example: Mr. Jones has blue eyes

QuantitativeQuantitative observationsobservations Example: Mr. Jones has two eyes Example: Mr. Jones has two eyes InferenceInference – –

Example: you leave the movie theater and see the ground Example: you leave the movie theater and see the ground is wet so you infer that it rained. is wet so you infer that it rained.

Obs.

Inf.

Obs.

Obs. Inf.

Inf.

The ice cream in the freezer was The ice cream in the freezer was melted melted

The lights in the house go out during The lights in the house go out during a thunderstorm. a thunderstorm.

Water is splashing down the Water is splashing down the window. window.

Using what you just learned!Using what you just learned!On the next slide there is a On the next slide there is a

photo. photo. Use the photo to make. . .Use the photo to make. . .

inferencesinferencesobservationsobservations

qualitative observationsqualitative observationsquantitative observationsquantitative observations

What do you think?What do you think?

Review For the Review For the Intro to Science QuizIntro to Science Quiz

Read the Ruler in cm & mm!Read the Ruler in cm & mm!59.9 cm 599mm

54.9 cm 549 mm

79.7 cm 797 mm

46.5 cm 465 mm

Fill in the Formulas for a Fill in the Formulas for a rectangle rectangle

Perimeter= ____________________Perimeter= ____________________

Area =________________________Area =________________________

Volume: ______________________Volume: ______________________

Side + Side + Side + Side

Length * Width

Length * Width * Height

Shape 1

Shape 2

Shape 1

L= 20 cm _________

W= 5 cm __________

H= 6 cm __________

P= __________ cm

A= __________cm2

V= ___________mm3

Shape 2

L= 2.2 m _________

W= .6 m __________

H= .5 m __________

P= __________ dm

A= __________m2

V= ___________dm3

200 mm

50 mm

60 mm

52

100 or 120

600,000

L

H

W

L

H

W

22 dm

6 dm

5 dm

54

1.1 or 1.32

660

1.  86 g = _____________ mg

2.  87.2 dam = _____________ dm

3.  1,776 m = _____________ mm

4.  73.5 cL = _____________ dL

5.  22.534 cm = _____________ m

6.  984 g = _____________ kg

7.  48.647 kg = _____________ dag

Metric ConversionMetric Conversion

86,000

8,720

1,776,000

7.35

.22534

.984

4864.7

K H Da Base D C M

Temperature ReviewTemperature Review

1. 44

Celsius Fahrenheit Kelvin

2. 76

3. 520

4. 88

5. 310

What is temperature? ______________________________________

What is the difference between 0 oC and 0 K? _________________ _______________________________________________________

_____________________________________________________________________________

6.67 279.81

168.8 349

246.85 476.33

31.1 304.1

36.85 98.33

Average KE of particles in a substance

O C is the Freezing point of water but 0K is where atomic motion stops.

Review Liquid VolumeReview Liquid VolumeAlways read meniscus down. Always read meniscus down.

33 mL

58 mL

14.5 mL

1mL = _____cm3

The density of water is

_______g/cm3

1

1

Explain how you would find the volume Explain how you would find the volume of the rock.of the rock.

Place water in the Place water in the Graduated cylinderGraduated cylinder

Measure the waterMeasure the water Place object in the Place object in the

waterwater Measure level of Measure level of

water and objectwater and object Subtract water from Subtract water from

totaltotal The difference is the The difference is the

volume of the objectvolume of the object6mL 7 mL Rock’s volume = 1mL

5.6 - 4.8 = .8 mL

38 - 32 = 6 mL

5 – 3.4 = 1.6 mL

69 – 65 = 4 mL

What is the formula for What is the formula for Volume?Volume?

Length * Width * HeightLength * Width * Height

V = L * W * H V = L * W * H What is the formula for What is the formula for

density?density?

D

M

VD= M / VD= M / V

M= D * VM= D * V

V= M / DV= M / D

Density ReviewDensity Review

1. 1. 1212 22

Mass (g)Mass (g) Volume (cmVolume (cm33)) Density (g/cmDensity (g/cm33))

2. 2. 88 1616

3. 3. 1010 5050

4. 4. 3030 2222

5. 5. 1919 44

How does sample size relate to density? _______________________

How does slope relate to density? ____________________________ _______________________________________________________

_____________________________________________________________________________

6

0.5

500

1.36

4.75

Size does not effect density

Slope is the densityThe steeper the slope the higher the density….

Observations vs. InferencesObservations vs. InferencesObservations:Observations: Something that you experience with your 5 Something that you experience with your 5

senses senses

Inferences:Inferences: a statement, conclusion or reflection a statement, conclusion or reflection

Quantitative:Quantitative: an observation that is expresses using an observation that is expresses using numbers numbers

QualitativeQualitative: An observation that is described in terms of : An observation that is described in terms of the qualities of the object (made using 5 senses)the qualities of the object (made using 5 senses)

Make Make observations observations & inferences & inferences

about this about this photo. Are photo. Are

they they Quantitative Quantitative

or or Qualitative?Qualitative?

E Density = ___________

D Density = ___________

C Density = ___________

B Density = ___________

A Density = ___________

VOLUME (cm3)

MA

SS

(g)

The Density of 5 Samples of Matter 4 g/cm3 Sink

2 g/cm3 Sink

1 g/cm3 Sink/Float

.75 g/cm3 Float

.5 g/cm3

Float

Reading a Metric RulerReading a Metric RulerHow many

cm mm

90.1 901

82.9 829

18.9 189

88.7 887

77.1 771

Quiz FridayQuiz Friday Using / reading a metric rulerUsing / reading a metric ruler Perimeter, Area, Volume of rectangles Perimeter, Area, Volume of rectangles Temperature conversionsTemperature conversions Temperature scales- Fahrenheit, Celsius, Kelvin Temperature scales- Fahrenheit, Celsius, Kelvin Define: Temperature & Absolute Zero Define: Temperature & Absolute Zero Metric Conversions: Know what the Meter, Liter and Metric Conversions: Know what the Meter, Liter and

Gram measure. Gram measure. DensityDensity Reading a Graduated CylinderReading a Graduated Cylinder Using a graduated cylinder to measure the volume of Using a graduated cylinder to measure the volume of

irregular solidsirregular solids Quantitative & Qualitative Observations & Inferences Quantitative & Qualitative Observations & Inferences

Lab Skills Review LabLab Skills Review Lab

1. Which pieces of lab equipment would be useful for pouring liquids?  Beaker or Graduated Cylindar 

2. Which pieces of equipment are measuring devices? Give examples…  

3. What are some uses of the other items that are non-measuring devises? Microscope, Scissors, Goggles, Hand Lens, maybe Graph Paper 

4. Which piece of equipment will protect your eyes from splashes of liquid, shattered glass and flying chips of rock? Goggles

  Tool Units

Temperature of a liquid  Thermometer  oC

Mass of an object  Triple Beam Balance  Grams

Duration of an event  Timer  Sec.

Length of an object  Ruler  cm

Volume of a liquid  Graduated Cylinder  mL

Volume small regular solid

 Ruler  cm3

Volume large regular solid

 Meter Stick  m3

Volume irregular solid  Graduated Cylinder  mL

Density: Density: is the ratio of the mass of an object to its volume

8. A kilogram of rocks and a kilogram of feather (finch) have the same mass, but the rocks take up less space. The rocks are said to be denser than the feathers.

What instruments would be needed to determine the density of a small pebble? Balance and ruler or Graduated cylinder.

Describe the procedure you would use to find the density. Mass item, measure volume, divide.

What is the formula for density? D = M / V

What Should we learn?What Should we learn?

The Density of Galena

0123456789

4 8 12 16 20 24 28 32

Volume (cm3)

Mas

s (g

)

E Density = ___________

D Density = ___________

C Density = ___________

B Density = ___________

A Density = ___________

VOLUME (cm3)

MA

SS

(g)

The Density of 5 Samples of Matter 4 g/cm3 Sink

2 g/cm3 Sink

1 g/cm3 Sink/Float

.75 g/cm3 Float

.5 g/cm3

Float

How does sample size relate to density?

How does slope relate to density?

What kind of items would sample size E & A represent?

Density of objects labDensity of objects lab

  MASS (g) VOLUME (cm3) DENSITY (g/cm3)

Aluminum Bar  33.2 11.25  2.95 A Cube  5  1.7  2.94B Cube  5  1.7  4.25

Steele Sphere  8.5  2  1.45 Glass Sphere  2.9  2  

•Which item has the highest density? Steel Sphere•Which item has the lowest density? Glass Sphere•Which of the two cubes had the highest density? Both very close•Using the information in the chart above. What metal do you think

cube A is made of? Aluminum Cube B? Aluminum •Look at the data you have on the bar and the cubes. Does the

density of an item change with An increase in volume? No

  MASS (g) VOLUME (cm3) DENSITY (g/cm3)

________ Rock

 3.9  2 1.95 

________Rock

 5.1  2  2.55

________ Rock

 5.9  2  4.22

•What effect does the shape of the rock have on density? No effect

•The rocks above make up much of earth’s crust. Using this information what is the approximate density of earth’s crust? About 2.9 g/cm3

•Assume that a plastic bottle is heated and its volume expands but its mass stays the same. What will happen to its density? Decrease

Density of WaterDensity of Water

1.1. Mass the cylinderMass the cylinder

2.2. Place 50 mL of water into the cylinder Place 50 mL of water into the cylinder

3.3. Mass the water and cylinder Mass the water and cylinder

4.4. (Cylinder + water) - cylinder = water (Cylinder + water) - cylinder = water

5.5. So v = 50 cmSo v = 50 cm33 And m = 49.1 g And m = 49.1 g

6.6. 49.1 / 50 = .98 g/ cm49.1 / 50 = .98 g/ cm33

7.7. Very close to the true density of 1 g/cmVery close to the true density of 1 g/cm33

Substance Cube # Mass Volume Density S or F

Acrylic 1  18.1  15.6  1.2  S Aluminum  2  44.0  15.6   2.8  S

Brass  5  136.9  15.6   8.7  SCopper  3  143.1  15.6  9.1  S

Oak  8  13.1  15.6  0.80  FPine  9  7.8  15.6  0.50  F

Polypropylene  7  14.0  15.6  0.90  F

PVC  6  22.5  15.6  1.44  SSteel  4  126.1  15.6  8.1  S

* Look back to the last page how do your densities compare to the ones listed on the front. If they are all similar explain what steps you took to ensure accuracy. If they are very different explain what you could do in the future to ensure accuracy.

* Look at your predictions for floating and sinking. Using the densities you calculated how can you be certain that an object will float or sink in water based on its density alone?

Type of substance: Acrylic   Mass (g) Volume (cm3) Density (g/cm3) Sink or

float?One block  18.1  15.6  1.2 S

Both blocks  36.4  31.2  1.2  S

As volume increases mass _______________.

As volume decreases mass __________________.

As the mass and volume of a substance increase, the density of that substance ____________________.

Look at the slope of the line. What does the slope represent? __________________________

What do you predict would happen to density if there were three blocks? _____________________

Measuring Liquid Measuring Liquid Volume Quiz HelpVolume Quiz Help

Step 1Step 1

Work out what it Work out what it counts by…counts by…

Let’s focus on the distance between Let’s focus on the distance between the two numbers…the two numbers…

59

58

57

56

55

54

53

52

51

See how there are 10

lines between 50

and 60 ?

It must count by 1 mL…It must count by 1 mL…

59

58

57

56

55

54

53

52

51

Step 2Step 2

Now we read the Now we read the water level. Because water level. Because it counts by 1mL and it counts by 1mL and we don’t guess the we don’t guess the answer must be a answer must be a whole number. whole number.

Look at where the meniscus isLook at where the meniscus is

59

58

57

56

55

54

53

52

51

56 mL56 mL

Step 1 again.Step 1 again.

Work out what it Work out what it counts by…counts by…

Let’s focus on the distance between Let’s focus on the distance between the two numbers…the two numbers…

3.9

3.8

3.7

3.6

3.53.4

3.3

3.2

3.1

See how there are

also 10 lines here

between 3 and 4?

It must count by .1 mL…It must count by .1 mL…

3.9

3.8

3.7

3.6

3.53.4

3.3

3.2

3.1

Step 2 Step 2 againagain

Now we read Now we read the water level. the water level. Because it Because it counts by .1mL counts by .1mL and the answer and the answer must be a whole must be a whole number with number with one decimal one decimal point. point.

3.9

3.8

3.7

3.6

3.5

3.4

3.3

3.2

3.1

Look at Look at where the where the

meniscus ismeniscus is

Must be Must be 4.3 mL4.3 mL