Classification of Matter

The substance of which all physical objects are made

Pure Substances

Pure substances are either elements or compounds

Cannot be broken down into simpler components

Element Compound

Elements

When all the atoms in a substance are alike

There are 90 elements found in nature

More than 20 others have been made in labs

Here are some you may recognize

Oxygen, O2

Mercury, Hg

Compounds

When two or more elements combine

Have a fixed proportion

ex. Na(s) + Cl(g) NaCl(s) table salt

Compound or Element?

Mixtures

Material made up of two or more substances that can be separated

Review: What is a substance?- an element or compound in its simplest form

Here are just a few examples;

PIZZA!!!!!!

COOKIES!!!!!

Heterogeneous v. Homogeneous

Heterogeneous - a mixture which different materials can be easily

distinguishedEx. Granite, concrete, PIZZA!!!!!!!

Homogeneous- a mixture containing two or more substances blended evenly throughoute

Ex. Soft drinks, Vinegar, Coffee

What is a Solution?

A solution is…..

• A homogeneous mixture of particles,

• A mixture that remains uniformly mixed,

Colloids

Types of mixtures that never settle

Contain larger particles than solutions

Ex. Glue, Paint, Fog, Smoke, etc…

Suspensions

A heterogeneous mixture containing a liquid in which visible particles settle

They are neither solutions nor colloids

Ex. Muddy pond water

Text Reference

• Glencoe Physical Science, Teacher Edition 2002, Glencoe/McGraw-Hill. Columbus OH. Pg. 518-524

Image References (in order of appearance)• http://www.google.com/imgres?imgurl=http://www.etftrends.com/wp-content/uploads/2010/06/friedland_industries_nonferrous_metals_copper.jpg&imgrefurl=http://

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• http://www.google.com/imgres?imgurl=http://www.mynewsletterbuilder.com/ex/template_content_corner/ex110/images/water.jpg&imgrefurl=http://www.mynewsletterbuilder.com/ex/template_content_corner/ex110/lg.html&usg=__L8jYVvJDYIdXcuk3M0ez-HA426o=&h=640&w=800&sz=89&hl=en&start=0&zoom=1&tbnid=L73Dwc8okR-zSM:&tbnh=165&tbnw=216&prev=/images%3Fq%3Dwater%26um%3D1%26hl%3Den%26safe%3Dstrict%26biw%3D1584%26bih%3D822%26tbs%3Disch:1&um=1&itbs=1&iact=hc&vpx=800&vpy=264&dur=2615&hovh=201&hovw=251&tx=138&ty=106&ei=QVH0TO3TKunRnAeei_WICg&oei=QVH0TO3TKunRnAeei_WICg&esq=1&page=1&ndsp=27&ved=1t:429,r:10,s:0

• http://www.google.com/imgres?imgurl=http://www.oxyedge-chum.com/images/oxygen_edge.jpg&imgrefurl=http://www.oxyedge-chum.com/Products.htm&usg=__RIVUlLnccbq5VYwjBurq8HI85Xc=&h=2154&w=1602&sz=176&hl=en&start=0&zoom=1&tbnid=YWYc36QGnhFGrM:&tbnh=171&tbnw=125&prev=/images%3Fq%3Doxygen%26um%3D1%26hl%3Den%26safe%3Dstrict%26biw%3D1584%26bih%3D822%26tbs%3Disch:1&um=1&itbs=1&iact=hc&vpx=542&vpy=63&dur=97&hovh=260&hovw=194&tx=138&ty=189&ei=uFP0TJfhGZWpngebk-ytCg&oei=g1P0TMXWH4jdngeUiY3QAQ&esq=10&page=1&ndsp=31&ved=1t:429,r:2,s:0

• http://qwickstep.com/search/mercury-element-uses.html• http://www.google.com/imgres?imgurl=http://www.webschool.org.uk/revision/nacl.jpg&imgrefurl=http://www.webschool.org.uk/revision/

ioniccompounds.htm&usg=__mlkqURIEHwpCUNRa8OysEKNuVq8=&h=381&w=400&sz=41&hl=en&start=0&zoom=1&tbnid=hol0DYrtr9fWvM:&tbnh=162&tbnw=173&prev=/images%3Fq%3Dcompounds%26um%3D1%26hl%3Den%26safe%3Dstrict%26sa%3DN%26biw%3D1584%26bih%3D822%26tbs%3Disch:1&um=1&itbs=1&iact=hc&vpx=368&vpy=79&dur=4821&hovh=219&hovw=230&tx=134&ty=140&ei=X1j0TPrVC5CinQej67XJCg&oei=Slj0TP-xI4eynAfcjJSCCg&esq=8&page=1&ndsp=29&ved=1t:429,r:1,s:0

• http://www.google.com/imgres?imgurl=http://haacked.com/images/haacked_com/WindowsLiveWriter/IsPizzaBrainFood_770D/mmm-pizza_2.jpg&imgrefurl=http://haacked.com/archive/2008/03/21/is-pizza-brain-food.aspx&usg=__xmDv7Vjn9hjoM-NdI3lvpOmA11Q=&h=480&w=593&sz=88&hl=en&start=0&zoom=1&tbnid=HrgUPONY5u8OMM:&tbnh=161&tbnw=199&prev=/images%3Fq%3Dpizza%26um%3D1%26hl%3Den%26safe%3Dstrict%26biw%3D1584%26bih%3D822%26tbs%3Disch:1&um=1&itbs=1&iact=hc&vpx=358&vpy=259&dur=2678&hovh=202&hovw=250&tx=160&ty=102&ei=nlv0TL72HoWpnAfU2ryVCw&oei=lFv0TJ-3MIzGnAemkImCCg&esq=3&page=1&ndsp=25&ved=1t:429,r:7,s:0

• http://www.google.com/imgres?imgurl=http://medicineworld.org/images/blogs/10-2006/chocolate_chip-cookies.jpg&imgrefurl=http://medicineworld.org/cancer/lead/10-2006/chocolate-chip-cookies-lower-cholesterol.html&usg=__KOjSPkPhvcesLIfDjrF9aM-23X4=&h=260&w=354&sz=11&hl=en&start=0&zoom=1&tbnid=eaQW2Q7V8nSS3M:&tbnh=134&tbnw=182&prev=/images%3Fq%3Dchocolate%2Bchip%2Bcookies%26um%3D1%26hl%3Den%26safe%3Dstrict%26biw%3D1584%26bih%3D822%26tbs%3Disch:1&um=1&itbs=1&iact=rc&dur=433&ei=oVz0TJ2hDIqRnwemtNidCg&oei=oVz0TJ2hDIqRnwemtNidCg&esq=1&page=1&ndsp=32&ved=1t:429,r:7,s:0&tx=67&ty=63