Madison+Smith

= ﻿ Oxygen!! = =Have you ever wondered what you were breathing?=
 * [[image:madison_tanner_smith_is_hotttttt_and_has_no_penis..png width="117" height="115"]] ||

Well, you're breathing oxygen! Oxygen is a wonderful element! Without it,you wouldn't be living nor would there wouldn't be any plants or animals. Oxygen is what keeps you living! It fuels you're body so that you can do the different activities and fun stuffthat keep your body fit and happy! Oxygen is in group 16, which also includes Sulfur, Selenium, Tellurium and Polonium. Oxygen has 6 valence electrons along with an atomic number of 8 and a mass of 15.999.

Oxygen has plenty of uses! the main use is for breathing and other respitory uses. not only can people use it to breathe. You can also use oxygen for oxidation purposes such as burning something. for fire to be created, you need to use oxygen to help create it!

Without oxygen, nobody would be able to survive. This is why you NEED to buy it!

Call: **1-800-OXYGEN** now!!!

 * ASsIGNMENT 2: Classification of Matter Flowchart**




 * ==**ASSIGNMENT 1: Physical and Chemical Properties and Changes**==

__**Physical property-**__ Characteristics of a substance that can be observed without changing the identity of the substance. __**Chemical property-**__ Properties that describe how a substance changes into other substances. __**Physical Change**__ - A change from one state to another without a change in its chemical composition.
 * __Chemical Change__** - Any process determined by the atomic and molecular composition and structure with the substances involved

paper isn't anything to do with chemicals i is a physical property. || only the shape has changed not the paper itself. Because nothing chemically caused the paper to change means that it's a physical change. ||
 * [[image:http://www.business-supply.com/sku_images/image/RIV04159_1_1.JPG width="240" height="240"]] || The color of the paper is white. This would be considered a
 * physical property** Since the color of the
 * [[image:http://t0.gstatic.com/images?q=tbn:ANd9GcRAyfOS8Nn-g3oPQb_2uaaOBuCn9tPfhuDOvYh15xC1DtqCF5A&t=1&usg=__rF9Gi3ujqObWWPS75GX-Ya5Xxcs= width="259" height="195" link="http://www.google.com/imgres?imgurl=http://tmacwright.files.wordpress.com/2008/05/grulla-en-origami.jpg&imgrefurl=http://amplicate.com/love/origami&usg=__lXHArkw8aBTr8Kp4tra4tgn6WhM=&h=569&w=756&sz=230&hl=en&start=0&zoom=1&tbnid=zekUetjOnTCdbM:&tbnh=161&tbnw=208&prev=/images%3Fq%3Dorigami%26um%3D1%26hl%3Den%26client%3Dfirefox-a%26sa%3DN%26rls%3Dorg.mozilla:en-US:official%26biw%3D1600%26bih%3D684%26tbs%3Disch:1&um=1&itbs=1&iact=hc&vpx=1300&vpy=310&dur=223&hovh=195&hovw=259&tx=151&ty=115&ei=74DcTKZyhcaVB4m93NwF&oei=74DcTKZyhcaVB4m93NwF&esq=1&page=1&ndsp=21&ved=1t:429,r:13,s:0"]] || This is an example of a **physical change** because

rust and not just changing the color but changing the chemical composition it is a chemical change. || it went from steel into rust which is a whole new substance.
 * [[image:http://t2.gstatic.com/images?q=tbn:ANd9GcQkjbHCpUkSf0BrHSMdM8XMv0Uvmy_C1mcMb7QzbAQJ0XDF-Kk&t=1&usg=__ZTQTdlUHCD-pNW2LJS6FL6BxWGU= width="235" height="215" link="http://www.google.com/imgres?imgurl=http://www.cvshealthresources.com/Imagebank/Articles_images/RustyNail.jpg&imgrefurl=http://www.cvshealthresources.com/topic/tetanus&usg=__0vsFHSgIPAAj2q-jx6o3rVmXDDA=&h=275&w=300&sz=77&hl=en&start=0&zoom=1&tbnid=uPiCOEe8MidOWM:&tbnh=161&tbnw=163&prev=/images%3Fq%3Drusty%2Bnail%26um%3D1%26hl%3Den%26client%3Dfirefox-a%26sa%3DN%26rls%3Dorg.mozilla:en-US:official%26biw%3D1600%26bih%3D684%26tbs%3Disch:1&um=1&itbs=1&iact=hc&vpx=531&vpy=116&dur=95&hovh=215&hovw=235&tx=99&ty=149&ei=eITcTPkwxZuWB_b5pecF&oei=eITcTPkwxZuWB_b5pecF&esq=1&page=1&ndsp=24&ved=1t:429,r:2,s:0"]] || This nail is rusty which represents a **chemical**
 * property**. Because oxygen changed the steel into
 * [[image:http://www.freefoto.com/images/07/41/07_41_1---Rusty-Chain_web.jpg?&k=Rusty+Chain width="262" height="180"]] || This is an example of a **chemical change** because

Below is how the steel turned into rust. 4Fe + 3O2 + 6H2O ---> 4Fe(OH)3 ||