8.11

8.11Mixtures8.11 Warm up Find dv/ivEsther became interested in insulation while her parents new house was being built. She decided to determine which insulation transferred the least heat. She filled each of 5 jars half-full with water. She sealed each jar with a plastic lid. Then she wrapped each jar with a different kind of insulation. She put the jars outside in the direct sunlight. Later, she measured the temperature of the water in each jar.

8.11 Warm up Find dv/ivEsther became interested in insulation while her parents new house was being built. She decided to determine which insulation transferred the least heat. She filled each of 5 jars half-full with water. She sealed each jar with a plastic lid. Then she wrapped each jar with a different kind of insulation. She put the jars outside in the direct sunlight. Later, she measured the temperature of the water in each jar.

Announcements8/8: Quiz #2 Scores recorded8/8: Lab Book ChecksThis week:8/15: SF: 2 Project Proposal Forms DUE 8/15: Quiz #3 Mixtures & MatterScience Fair7/29: Parent Letter8/8: Project Topic Survey + 4 articles8/15: Project Proposal Forms (2)8/22: Hypothesis Development Form8/29: Final Project Approval for all projectsREVIEW PROJECTS:9/3 & 4: Mandatory Meeting for projects needing review9/5: Research Paper DUE & Materials and Methods Paper DUE9/9: Review Forms due to districtNon REVIEW PROJECTS:9/9: Research Paper DUE9/12: Materials and Methods Paper DUE

LEARNING goal:Classify mixtures as being homogeneous or heterogeneous 1 can compare the different types of mixturesI can explain the different types of mixturesI know about mixturesI need to review mixturesWhats the big deal about mixtures?Designers have to research their materials and products when coming up with new products.They look at the chemical and physical propertiesEngineers use this in creating new materials, structures and devicesIn the biomedical field, they have to be aware of how materials would or would not interact with the bodyReview MatterWhat are the 3 states of matter?SOLID, LIQUID GAShttp://www.harcourtschool.com/activity/states_of_matter/

Review MatterWhat is matter made up of?ElementsPure substance that cannot be broken down into any other substances Simplest substancesIdentified by certain chemical & physical propertiesEx: GoldAluminumZincOxygen

ElementsParticles of elements = atoms

COMPOUNDSWhen 2 or more elements are chemically combined to form a pure substanceUsually has properties different from the original element propertiesEX:H2OH2O2NaCl

MixturesWhat is a mixture?A mixture is when two or more different substances are mixed together but are not combined chemicallyThere are 2 types of mixturesHeterogeneous hetero = different / geeous = kindHomogeneous homo = same / geneuos = kind

MixturesHETEROGENEOUSHOMOGENEOUSA mixture that has different components that can be seen with the human eyeEx:Trail mixA mixture that has the same composure throughoutDifferent parts cannot be seenEx:Salt water

Name that mixture

Come up with 3 more mixtures eachHeterogenousHomogenousTrail mixCandyCurditoCereal

MilkPoweradePupusaIce creamwaffle

8.12 Mixtures vs compounds8/12 Warm UpClassify the following as:HeterogeneousHomogeneousLucky CharmsBalsamic vinaigretteSoilOrange juiceSandy waterCrystal lightair8/12 Warm UpClassify the following as:HeterogeneousHomogeneousLucky CharmsBalsamic vinaigretteSoilOrange juiceSandy waterCrystal lightAirLEARNING goal:Classify mixtures as being homogeneous or heterogeneous 4 - 1 can compare the different types of mixtures3 - I can explain the different types of mixtures2 - I know about mixtures1 - I need to review mixturesAnnouncements8/8: Quiz #2 if absent, come see meThis week:8/15: SF: 2 Project Proposal Forms DUE 8/15: Quiz #3 Mixtures & Matter

9/5 or 9/9 Research Paper DueLEARNING goal:Distinguish Solubility4 - 1 can compare the different types of solubility3 - I can explain the different types of solubility2 - I know about solubility1 - I need to review solubilitySolutionsSolventSoluteSubstance doing the dissolvingEx: WaterSubstance getting dissolvedEx: Sugar

Can you think of other examplesSolventSoluteLEARNING goal:Distinguish Solubitlity4 - 1 can compare the different types of solubility3 - I can explain the different types of solubility2 - I know about solubility1 - I need to review solubilityLEARNING goal:Classify properties based on physical or chemical4 - 1 can compare the different types of properties3 - I can explain the different types of properties2 - I know about properties1 - I need to review propertiesWhats the difference between a mixture & compound?One is chemically combined The other is physically combinedPropertiesWhat is a property?Describes, talks about its ability toCan be physical or chemicalPhysical property: characteristic/ability of a substance without changing it to something newChemical property: characteristic of a substance that does have the ability to turn into something newPhysical & Chemical CharacteristicsPHYSICALCHEMICALCan change its appearance physicallyCan change what it is made up of (can change the atoms to make a new thing); can reactMarshmallow ExampleExamplesPHYSICALCHEMICALMake a thinking MapBase it on one or more of these concepts:Mixtures, compounds, elementsHomogeneous & heterogeneousSolvent & SolutePhysical & Chemical Properties

LEARNING goal:Classify properties based on physical or chemical4 - 1 can compare the different types of properties3 - I can explain the different types of properties2 - I know about properties1 - I need to review propertiesHeadbandsEach person makes 6 cards with key words weve learned from this whole yearMeasuring, lab safety, experiments, mixturesPut all the cards in the center of the tablePerson #1 puts a card on head and the group tries to explain the card without telling them any part of the actual word.Ex: Dependent Variable you couldnt say its the opposite of independent30 sec to get as many cards guessedCount how many you hadReshuffle person #2 goes