solids, liquids and gases

<body topmargin=0 leftmargin=0 marginheight=0 marginwidth=0> <table cellpadding=0 cellspacing=0 border=0 height="100%"><tr> <td valign="top" width=200 BGCOLOR="#003333" TEXT="#F7F7FF" background="03fd4c00dduajq.png"> <div> <TABLE BORDER="0" CELLPADDING="2" CELLSPACING="0" WIDTH="95" BORDERCOLORLIGHT="#C0C0C0" BORDERCOLORDARK="#808080" FRAME="BOX" RULES="ALL" HSPACE="0" VSPACE="0" > <tR> <tD VALIGN=TOP HEIGHT= 46 WIDTH="91"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="46" ALIGN="bottom" WIDTH="91" HSPACE="0" VSPACE="0"></tD> </tR> </TABLE></div> <div> <A HREF="index.htm" TARGET="_top" TITLE="Science For All"><U>home</U></A></div> <div> <A HREF="site_map_and_site_search_engine.htm" TARGET="_top" TITLE="Science for all site map"><U>Site map + site search engine</U></A></div> <bR> <div> <A HREF="id56.htm" TARGET="_top" TITLE="Student pages switchboard"><U>Switchboard</U></A></div> <div> <B><IMG BORDER="0" SRC="Symb075c00b700c8ffffff00.png" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">solids, liquids and gases</B></div> <div> <A HREF="slg_structure.htm" TARGET="_top" TITLE="Solids, liquids and gases their molecul"><U>Solids, liquids and gases - their 'molecular' structure</U></A></div> <div> <A HREF="id63.htm" TARGET="_top" TITLE="Changes of state"><U>Changes of state</U></A></div> <div> <A HREF="id69.htm" TARGET="_top" TITLE="Air resistance"><U>Air resistance</U></A></div> <div> <A HREF="id79.htm" TARGET="_top" TITLE="Mass and weight"><U>Mass and weight</U></A></div> <div> <A HREF="id81.htm" TARGET="_top" TITLE="Conduction of heat"><U>Conduction of heat</U></A></div> <div> <A HREF="id92.htm" TARGET="_top" TITLE="Static Electricity"><U>Static Electricity</U></A></div> <div> <A HREF="id129.htm" TARGET="_top" TITLE="Acid Rain factfile"><U>Acid Rain factfile</U></A></div> <bR> </td> <td valign="top" BGCOLOR="#FFFFFF" TEXT="#080000" bgproperties="fixed" background="0f8a0a03.png"> <div> solids, liquids and gases</div> <bR> <div> You are visiting the Science For All site</div> <div> <IMG SRC="0f7f4040.png" border=0 width="500" height="4" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <DIV ALIGN="LEFT"></DIV> <div> Search the internet for more information about solids, liquids and gases.</div> <bR> <div>  <IMG SRC="http://service.bfast.com/bfast/serve?bfmid=31103363&siteid=35044309&bfpage=football" BORDER="0" WIDTH="1" HEIGHT="1" NOSAVE > <FORM ACTION="http://service.bfast.com/bfast/click" > <INPUT TYPE="hidden" NAME="siteid" VALUE="35044309" > <INPUT TYPE="hidden" NAME="bfpage" VALUE="football"> <INPUT TYPE="hidden" NAME="bfmid" VALUE="31103363" > <TABLE CELLPADDING="0" CELLSPACING="0" BORDER="0"> <TR> <TD BGCOLOR="#009900"><IMG SRC="http://www.ask.co.uk/docs/about/questionboxes/questionbox16_a.gif" WIDTH="120" HEIGHT="73"></TD> </TR> <TR><FORM ACTION="http://www.ask.co.uk/main/askjeeves.asp" METHOD="GET"> <TD BGCOLOR="#009900" ALIGN="center" BACKGROUND="http://www.ask.co.uk/docs/about/questionboxes/questionbox16_b.gif" WIDTH="120" HEIGHT="21"><INPUT TYPE="text" NAME="ask" SIZE="13"> <INPUT TYPE="hidden" NAME="scope" VALUE="web"> <INPUT TYPE="hidden" NAME="origin" VALUE="nnnn"> <INPUT TYPE="hidden" NAME="qSource" VALUE="n"></TD> </TR> <TR> <TD BGCOLOR="#009900"><INPUT TYPE="image" SRC="http://www.ask.co.uk/docs/about/questionboxes/questionbox16_c.jpg" BORDER="0" WIDTH="120" HEIGHT="40"></TD> </FORM></TR> </TABLE> </FORM>  </div> <bR> <bR> <div> Solids, liquids and gases are the three states of matter. All matter is made from small particles. These particles are called atoms and molecules. </div> <bR> <div> The things that you need to know about solids, liquids and gases (in order of difficulty) are:</div> <div> <IMG BORDER="0" SRC="Symb075c00b70118ff990000.png" HEIGHT="19" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">What are their <A HREF="#solids" TITLE="solids, liquids and gases"><U>general properties</U></A>?</div> <div> <IMG BORDER="0" SRC="Symb075c00b70118ff990000.png" HEIGHT="19" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">How are these properties related to the <A HREF="#uses" TITLE="solids, liquids and gases"><U>uses</U></A> of solids, liquids and gases?</div> <div> <IMG BORDER="0" SRC="Symb075c00b70118ff990000.png" HEIGHT="19" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Why do they have these properties?</div> <div> <IMG BORDER="0" SRC="Symb075c00b70118ff990000.png" HEIGHT="19" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Why do solids melt, liquids freeze and boil etc.?</div> <bR> <div> Firstly, let us deal with the <FONT SIZE="4" COLOR="#FF0033" FACE="Arial" >general properties</FONT> of the three states of matter.</div> <bR> <div>  <A NAME="solids"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="1" ALIGN="bottom" WIDTH="1" HSPACE="0" VSPACE="0" ></A>Solids</div> <bR> <div> Keep their shape unless they are broken</div> <div> Do not flow</div> <div> Cannot be compressed (keep the same volume)</div> <bR> <bR> <div> Liquids</div> <bR> <div> Do not keep their shape, they take the shape of the container thay are in</div> <div> Flow</div> <div> Cannot be compressed (keep the same volume)</div> <bR> <div> Gases</div> <bR> <div> Do not keep their shape, they completely fill the container that they are in</div> <div> Flow, spread out quickly from where they are to start with (this is called diffusion)</div> <div> Can be compressed (squashed into a much smaller volume)</div> <bR> <bR> <div> Secondly, let us deal with the <FONT SIZE="4" COLOR="#FF0033" FACE="Arial" >uses</FONT> of the three states of matter.</div> <bR> <div>  <A NAME="uses"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="1" ALIGN="bottom" WIDTH="1" HSPACE="0" VSPACE="0" ></A>Solids</div> <bR> <div> Solids are used where we need something to keep its shape or to support something. This is because they keep their shape, stay where they are put and cannot be compressed. </div> <bR> <DIV ALIGN="LEFT"></DIV> <div> <IMG SRC="10a645b0.png" border=0 width="100" height="91" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <div> Imagine a chair. Try to imagine what it would be like if the chair was made from a liquid. Would it keep its shape? Would it support your weight? Would it stay where you put it?</div> <bR> <div> Now, think why bike frames, scaffolding poles and motor vehicle bodies are made from solids.</div> <bR> <DIV ALIGN="LEFT"></DIV> <div> <IMG SRC="10db1640.png" border=0 width="177" height="100" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <bR> <div>  <A NAME="liquids"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="1" ALIGN="bottom" WIDTH="1" HSPACE="0" VSPACE="0" ></A>Liquids</div> <bR> <div> Liquids are used where we need something to flow e.g. for making a drink, or when we need something to take up the shape of a container such as a mould. A good example of this is making a jelly. The jelly (solid) has to be turned into a liquid (in this case by dissolving) so that it takes up the shape of the mould. It is then left to set (i.e. go solid again) so that it keeps its shape when removed from the mould.</div> <DIV ALIGN="LEFT"></DIV> <div>  <img src="HTMLobj-291/aniGif.gif" alt="hot drink" border="0" align="bottom" width="36" height="101">  </div> <bR> <div> A drink has to be a liquid. What general property of liquids are important for their use as drinks? </div> <bR> <div> Now think why swimming pools are filled with water and why shampoo and shower gel are liquids.</div> <bR> <div> Gases</div> <bR> <div> Gases are used when we need something to spring back after it has been squashed e.g. in a tyre or when we need something to spread out e.g. fly killer spray. This is because gases can be compressed by a lot and, when you release tha force that is compressing the gas, it will go back to its original state. If a gas is released from a container, it will spread out wherever it can so if you spray some fly killer at one end of a room, given time, it will spread throughout the room. </div> <bR> <DIV ALIGN="LEFT"></DIV> <div> <IMG SRC="1279b940.png" border=0 width="155" height="148" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <bR> <div> Why does a squirt or two of air freshener at one end of the room make the whole room smell better? What general property of gases is important here?</div> <bR> <div> Now think why smoking a cigarette is so harmful to people other than the smoker (hint: the products of burning are mainly gases). Why does a basketball bounce but a tenpin bowling ball doesnt bounce anywhere near as much?</div> <bR> <div> Click <A HREF="slg_structure.htm" TARGET="_top" TITLE="Solids, liquids and gases their molecul"><U>here</U></A> to find out why solids, liquids and gases have their general properties.</div> <bR> </td> </tr></table></body>