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 ElementCompound

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, O 2

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 distinguished Ex. 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

Image References ( in order of appearance ) content/uploads/2010/06/friedland_industries_nonferrous_metals_copper.jpg&imgrefurl= crisis-levels/&usg=__fXrqVG5k-qfS9kDg-Z8- hYty8N8=&h=480&w=640&sz=185&hl=en&start=0&zoom=1&tbnid=wel3SnC69tUxzM:&tbnh=156&tbnw=208&prev=/images%3Fq%3Dcopper%26um%3D1%26hl%3Den%26safe%3Dstric t%26biw%3D1584%26bih%3D822%26tbs%3Disch:10%2C303&um=1&itbs=1&iact=rc&dur=597&ei=uFD0TIHfLIPHnAfI64WLCg&oei=uFD0TIHfLIPHnAfI64WLCg&esq=1&page=1&ndsp=28& ved=1t:429,r:26,s:0&tx=104&ty=93&biw=1584&bih=822 /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=8 00&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:0dur=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 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=/image s%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=1 94&tx=138&ty=189&ei=uFP0TJfhGZWpngebk-ytCg&oei=g1P0TMXWH4jdngeUiY3QAQ&esq=10&page=1&ndsp=31&ved=1t:429,r:2,s:0TJfhGZWpngebk-ytCg&oei=g1P0TMXWH4jdngeUiY3QAQ&esq=10&page=1&ndsp=31&ved=1t:429,r:2,s:0 CUNRa8OysEKNuVq8=&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=X1j0TP rVC5CinQej67XJCg&oei=Slj0TP-xI4eynAfcjJSCCg&esq=8&page=1&ndsp=29&ved=1t:429,r:1,s:0&ei=X1j0TP rVC5CinQej67XJCg&oei=Slj0TP-xI4eynAfcjJSCCg&esq=8&page=1&ndsp=29&ved=1t:429,r:1,s:0 pizza_2.jpg&imgrefurl= 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=nlv0TL72HoWpnAfU2ryV Cw&oei=lFv0TJ-3MIzGnAemkImCCg&esq=3&page=1&ndsp=25&ved=1t:429,r:7,s: /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%3 Den%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