New Seating Chart Period 1

Baltazar Nancy

Freddy Johnathan

Yailyn Jamie

Marcos Jan

Marisol Jimmy

Onica Vincent

Romale Tania

Marco

Reynel Joshua

Isadora

Front of Room

Back of Room

New Seating Chart Period 3

Zachary Eric

Giovanni

Vanessa

Andrea Anthony

Adan Cristhian G.

Diego Magdalena

Santiago

Christopher

Rosa Taviona

JessicaJoshua

Edwin Jasmine

Monica Christian R.

Megan

Angelo Francisco

Isabel Wil

Melissa Betsy

Manuel Q. Raul

Moises

Katie Ryan

Manuel S.

Front of Room

Back of Room

New Seating Chart Period 6

Wenndy Anayeli

Andy Carla

Yusuf Samuel

Tania Jaime

Kelvin Rigoberto

Gabriela Maria

MayraJacob

MarioJhony

Laura Gustavo

DavidMarlen

Chloe

IvetteRaul

Crystal Sandra

Madeline

Jonathan

Front of Room

Back of Room

New Seating Chart Period 7

Dantrell Keti

Lazaro Junior

Myles Joseph

Christian Ricky

Sandy Arnold

Jovan Rosalie

Angelica Michael

JulioJazmine

JaniGabriel

Angel QJaime

Gustavo

Tianna Martin

James Kendale

Celerina Yvette

Tania Jenny

Luis Jocelyn

Angel J. Juan

Jennyshka Jennifer

Front of Room

Back of Room

New Seating Chart Period 9

MatthewJose G.

Yasmin Christian

Joanna Kenny

Jose Agustin

Monica Diana

Viviana Miya

Joshua Leslie

Brenda Toriana

Lucas Maria

RicardoOscar

Jose C.

Myeisha Leslie

Marcos Andrez

Ana Jimmy

Jennifer Renato

Zachary Evelyn

Dario Deshaunna

Steven Elizabeth

Front of Room

Back of Room

Do Now: (3 min)On a SEPARATE sheet of paper, write your name,

period and date. Answer the following questions (the copier broke - this is your Do Now sheet for the next two weeks)

1. Explain the difference between a heterogeneous

and a homogeneous mixture.2. Are the following examples elements,

compounds, homogeneous or heterogeneous mixtures?

1 2 3

Do Now Discussion• Explain the difference between a

heterogeneous and a homogeneous mixture.

One can see all the separate parts of a heterogeneous mixture while a homogeneous mixture looks the same throughout.

• Are the following examples elements, compounds or mixtures?1 2 3

Mixture! Element! Compound!

Separating Mixtures

10/19/09Cornell Notes

Last Week: (don’t write this)

Matter

Pure Substance

Mixture

Element Compound

Heterogeneous

Homogenous

Why would we separate a mixture?

Cleaning waterOil processingMaking candySalt and Sugar Production

Mixture

A physical blend of pure substances

Physical blends mean – we can separate and sort the separate parts based on physical properties◦Boiling or melting points◦Size◦State of matter

Filtration

Uses a barrier to separate a solid from a liquid or gas in a mixture. Liquids and gases pass through and solid stays behind.

DistillatonSeparate

homogeneous mixtures made of liquids using the different boiling points of each part

Heat a mixture, the part with the lowest boiling point turns into a vapor, can be condensed and collected.

Water purification

Crystallization

the formation of pure solid particles of a substance from a solution containing the dissolved substance

Practice!Examples of mixtures will be placed on

the boardYour task: You have 2 minutes to:

1. Write down the example2. Write down which separation technique

you would use3. Explain why (1-2 sentences)

You can work in your group, but you must have your own answer sheet.

At the end, will grade our answers as a class.

Example #1Before we can drink water from a river, we

must remove all the dirt.

What technique do we use?Why do we use that technique?

Example #2Salt is an important ingredient in many

dishes and people have been getting salt from the ocean since ancient times.

What separation technique do we use?Why do we use that technique?

Example #3Oil drillers take crude oil from the ground, but

it must be processed in order for us to get gasoline, diesel fuel and materials for plastics.

What separation technique do we use?Why do we use that technique?

Example #4I made some kool-aid, but I want the

sugar back.

What separation technique do I use?Why do I use that technique?

Example #5There is a lot of dust in the air and we need to

get rid of it because Ms. Akagi is allergic to dust (but not really).

What separation technique do we use?Why do we use that technique?

GradingGather your group members

papers togetherTrade with another groupEach person will grade another

person’s paper2 points per question (10 points

total)◦1 point for the correct separation

technique◦1 point for a correct explanation

Example #1Before we can drink water from a river, we

must remove all the dirt.

Filtration!Remove a solid from a liquid

Example #2Salt is an important ingredient in many

dishes and people have been getting salt from the ocean since ancient times.

Crystallization!Salt is dissolved in the water

Example #3Oil drillers take crude oil from the ground, but

it must be processed in order for us to get gasoline, diesel fuel and materials for plastics.

Distillation!Oil is a homogeneous mixture!

Example #4

I made some kool-aid, but I want the sugar back.

Crystallization!The kool-aid mix and sugar are

dissolved in the water!

Example #5There is a lot of dust in the air and we

need to get rid of it because Ms. Akagi is allergic to dust (but not really).

Filtration!Remove a solid from a gas

Grading:2 points per question

◦1 point for correct technique◦1 point for correct explanation

Put the number of points out of ten at the top of the paper

Collect the papers in your groupsHave one person bring them up

to the front

RemindersHomework is due on Thursday!Lab fee $10 in Room 225 A

◦(free homework pass if paid by 10/22)

Test on 10/30/09 (next Friday)You need a calculator EVERYDAY

for the next two weeks!