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8.11. Mixtures. 8.11 Warm up – Find dv/iv.

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8.11

Mixtures


8 11 warm up find dv iv
8.11 Warm up – Find dv/iv

  • Esther became interested in insulation while her parent’s 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 iv1
8.11 Warm up – Find dv/iv

  • Esther became interested in insulation while her parent’s 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.


Announcements
Announcements

  • 8/8: Quiz #2 Scores recorded

  • 8/8: Lab Book Checks

  • This week:

    • 8/15: SF: 2 Project Proposal Forms DUE

    • 8/15: Quiz #3 – Mixtures & Matter


Science fair
Science Fair

  • 7/29: Parent Letter

  • 8/8: Project Topic Survey + 4 articles

  • 8/15: Project Proposal Forms (2)

  • 8/22: Hypothesis Development Form

  • 8/29: Final Project Approval for all projects

  • REVIEW PROJECTS:

    • 9/3 & 4: Mandatory Meeting for projects needing review

    • 9/5: Research Paper DUE & Materials and Methods Paper DUE

    • 9/9: Review Forms due to district

  • Non REVIEW PROJECTS:

    • 9/9: Research Paper DUE

    • 9/12: Materials and Methods Paper DUE


Learning goal classify mixtures as being homogeneous or heterogeneous
LEARNING goal:Classify mixtures as being homogeneous or heterogeneous

  • 1 can compare the different types of mixtures

  • I can explain the different types of mixtures

  • I know about mixtures

  • I need to review mixtures


What s the big deal about mixtures
What’s 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 properties

  • Engineers use this in creating new materials, structures and devices

  • In the biomedical field, they have to be aware of how materials would or would not interact with the body


Review matter
Review Matter

  • What are the 3 states of matter?

  • SOLID, LIQUID GAS

  • http://www.harcourtschool.com/activity/states_of_matter/


Review matter1
Review Matter

  • What is matter made up of?

  • Elements

    • Pure substance that cannot be broken down into any other substances

    • Simplest substances

    • Identified by certain chemical & physical properties

  • Ex:

    • Gold

    • Aluminum

    • Zinc

    • Oxygen


Elements
Elements

  • Particles of elements = atoms


Compounds
COMPOUNDS

  • When 2 or more elements are chemically combined to form a pure substance

  • Usually has properties different from the original element properties

  • EX:

    • H2O

    • H2O2

    • NaCl


Mixtures
Mixtures

  • What is a mixture?

  • A mixture is when two or more different substances are mixed together but are not combined chemically

  • There are 2 types of mixtures

    • Heterogeneous – hetero = different / geeous = kind

    • Homogeneous – homo = same / geneuos = kind


Mixtures1
Mixtures

HETEROGENEOUS

HOMOGENEOUS

A mixture that has different components that can be seen with the human eye

Ex:

Trail mix

A mixture that has the same composure throughout

Different parts cannot be seen

Ex:

Salt water



Come up with 3 more mixtures each
Come up with 3 more mixtures each

Heterogenous

Homogenous

Trail mix

Candy

Curdito

Cereal

Milk

Powerade

Pupusa

Ice cream

waffle


8 12 mixtures vs compounds

8.12 Mixtures vs compounds


8 12 warm up classify the following as
8/12 Warm UpClassify the following as:

Heterogeneous

Homogeneous

Lucky Charms

Soil

Balsamic vinaigrette

Crystal light

Sandy water

air

Orange juice


8 12 warm up classify the following as1
8/12 Warm UpClassify the following as:

Heterogeneous

Homogeneous

Crystal light

Lucky Charms

Orange juice

Balsamic vinaigrette

Air

Sandy water

Soil


Learning goal classify mixtures as being homogeneous or heterogeneous1
LEARNING goal:Classify mixtures as being homogeneous or heterogeneous

  • 4 - 1 can compare the different types of mixtures

  • 3 - I can explain the different types of mixtures

  • 2 - I know about mixtures

  • 1 - I need to review mixtures


Announcements1
Announcements

  • 8/8: Quiz #2 – if absent, come see me

  • This week:

    • 8/15: SF: 2 Project Proposal Forms DUE

    • 8/15: Quiz #3 – Mixtures & Matter

    • 9/5 or 9/9 Research Paper Due


Learning goal distinguish solubility
LEARNING goal:Distinguish Solubility

  • 4 - 1 can compare the different types of solubility

  • 3 - I can explain the different types of solubility

  • 2 - I know about solubility

  • 1 - I need to review solubility


Solutions
Solutions

Solvent

Solute

Substance doing the dissolving

Ex: Water

Substance getting dissolved

Ex: Sugar



Learning goal distinguish solubitlity
LEARNING goal:Distinguish Solubitlity

  • 4 - 1 can compare the different types of solubility

  • 3 - I can explain the different types of solubility

  • 2 - I know about solubility

  • 1 - I need to review solubility


Learning goal classify properties based on physical or chemical
LEARNING goal:Classify properties based on physical or chemical

  • 4 - 1 can compare the different types of properties

  • 3 - I can explain the different types of properties

  • 2 - I know about properties

  • 1 - I need to review properties


What s the difference between a mixture compound
What’s the difference between a mixture & compound?

  • One is chemically combined

  • The other is physically combined


Properties
Properties

  • What is a property?

  • Describes, talks about it’s ability to…

  • Can be physical or chemical

  • Physical property: characteristic/ability of a substance without changing it to something new

  • Chemical property: characteristic of a substance that doeshave the ability to turn into something new




Examples
Examples

PHYSICAL

CHEMICAL


Make a thinking map base it on one or more of these concepts
Make a thinking MapBase it on one or more of these concepts:

  • Mixtures, compounds, elements

  • Homogeneous & heterogeneous

  • Solvent & Solute

  • Physical & Chemical Properties


Learning goal classify properties based on physical or chemical1
LEARNING goal:Classify properties based on physical or chemical

  • 4 - 1 can compare the different types of properties

  • 3 - I can explain the different types of properties

  • 2 - I know about properties

  • 1 - I need to review properties


Headbands
Headbands

  • Each person makes 6 cards with key words we’ve learned from this whole year

    • Measuring, lab safety, experiments, mixtures…

  • Put all the cards in the center of the table

  • Person #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 couldn’t say it’s the opposite of independent

  • 30 sec to get as many cards guessed

  • Count how many you had

  • Reshuffle – person #2 goes…


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