Make Your Own Rock Candy

<h2> <i>This Experiment Requires Adult Help:</i></h2> <div class="separator" style="clear: both; text-align: center;"> <a href="http://www.sciencebob.com/graphics/youwillneed.gif" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" src="http://www.sciencebob.com/graphics/youwillneed.gif" /></a></div> <div> <i><br /></i></div> <div> <i><br /></i></div> <div> <i><br /></i></div> <div> <i><br /></i></div> <div> <i><br /></i></div> <div> <div class="MsoListParagraphCxSpFirst" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <!--[if !supportLists]--><span style="font-family: Symbol; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;">·<span style="font-family: 'Times New Roman'; font-size: 7pt;">      </span><span style="font-family: 'Times New Roman';"><span style="font-size: x-small;"> 1:</span></span><span style="font-family: 'Times New Roman'; font-size: 7pt;"> </span></span><!--[endif]-->A wooden skewer (you can also use a clean wooden chopstick)               <br /> <div class="separator" style="clear: both; text-align: center;"> <a href="http://www.sciencebob.com/graphics/rock_candy.jpg" imageanchor="1" style="clear: right; float: right; margin-bottom: 1em; margin-left: 1em;"><img border="0" height="320" src="http://www.sciencebob.com/graphics/rock_candy.jpg" width="157" /></a></div> <o:p></o:p></div> <div class="MsoListParagraphCxSpMiddle" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <!--[if !supportLists]--><span style="font-family: Symbol; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;">·<span style="font-family: 'Times New Roman'; font-size: 7pt;">     </span><span style="font-family: 'Times New Roman';"><span style="font-size: x-small;"> 2:</span></span></span><span style="font-family: Symbol; text-indent: -0.25in;"><span style="font-family: 'Times New Roman'; font-size: 7pt;">  </span></span><span style="text-indent: -0.25in;">A clothespin</span></div> <div class="MsoListParagraphCxSpMiddle" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <o:p></o:p></div> <div class="MsoListParagraphCxSpMiddle" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <!--[if !supportLists]--><span style="font-family: Symbol; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;">·<span style="font-family: 'Times New Roman'; font-size: 7pt;">     </span><span style="font-family: 'Times New Roman';"><span style="font-size: x-small;">  3:</span></span><span style="font-family: 'Times New Roman'; font-size: 7pt;"> </span></span><!--[endif]-->1 cup of water<o:p></o:p></div> <div class="MsoListParagraphCxSpMiddle" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <!--[if !supportLists]--><span style="font-family: Symbol; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;">·<span style="font-family: 'Times New Roman'; font-size: 7pt;">       </span><span style="font-family: 'Times New Roman';"><span style="font-size: x-small;">4: </span></span></span><!--[endif]-->2-3 cups of sugar<o:p></o:p></div> <div class="MsoListParagraphCxSpLast" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <!--[if !supportLists]--><span style="font-family: Symbol; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;">·<span style="font-family: 'Times New Roman'; font-size: 7pt;">     </span><span style="font-family: 'Times New Roman';"><span style="font-size: x-small;"> 5: </span></span></span><!--[endif]-->A tall narrow glass or jar<o:p></o:p></div> <div class="separator" style="clear: both; text-align: center;"> <a href="http://www.sciencebob.com/graphics/whattodo.gif" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" src="http://www.sciencebob.com/graphics/whattodo.gif" /></a></div> <div class="MsoListParagraphCxSpLast" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <br /></div> <div class="MsoListParagraphCxSpLast" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <br /></div> <div class="MsoListParagraphCxSpLast" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <br /></div> <div class="MsoListParagraphCxSpLast" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <span style="font-family: Wingdings; text-indent: -0.25in;"><br /></span> <span style="font-family: Wingdings; text-indent: -0.25in;"><br /></span> <span style="font-family: Wingdings; text-indent: -0.25in;">Ø<span style="font-family: 'Times New Roman'; font-size: 7pt;">  </span></span><span style="text-indent: -0.25in;">Clip the wooden skewer into the clothespin so that it hangs down inside the glass and is about 1 inch (2.5 cm) from the bottom of the glass. (as shown)</span></div> <div class="MsoListParagraphCxSpFirst" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <o:p></o:p></div> <div class="MsoListParagraphCxSpMiddle" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <!--[if !supportLists]--><span style="font-family: Wingdings; mso-bidi-font-family: Wingdings; mso-fareast-font-family: Wingdings;">Ø<span style="font-family: 'Times New Roman'; font-size: 7pt;">  </span></span><!--[endif]-->Remove the skewer and clothespin and put them aside for now.<o:p></o:p></div> <div class="MsoListParagraphCxSpMiddle" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <!--[if !supportLists]--><span style="font-family: Wingdings; mso-bidi-font-family: Wingdings; mso-fareast-font-family: Wingdings;">Ø<span style="font-family: 'Times New Roman'; font-size: 7pt;">  </span></span><!--[endif]-->Get a helpful adult!<o:p></o:p></div> <div class="MsoListParagraphCxSpMiddle" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <!--[if !supportLists]--><span style="font-family: Wingdings; mso-bidi-font-family: Wingdings; mso-fareast-font-family: Wingdings;">Ø<span style="font-family: 'Times New Roman'; font-size: 7pt;">  </span></span><!--[endif]-->Pour the water into a pan and bring it to boil.<o:p></o:p></div> <div class="MsoListParagraphCxSpMiddle" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <!--[if !supportLists]--><span style="font-family: Wingdings; mso-bidi-font-family: Wingdings; mso-fareast-font-family: Wingdings;">Ø<span style="font-family: 'Times New Roman'; font-size: 7pt;">  </span></span><!--[endif]-->Pour about 1/4 cup of sugar into the boiling water, stirring until it dissolves.<o:p></o:p></div> <div class="MsoListParagraphCxSpMiddle" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <!--[if !supportLists]--><span style="font-family: Wingdings; mso-bidi-font-family: Wingdings; mso-fareast-font-family: Wingdings;">Ø<span style="font-family: 'Times New Roman'; font-size: 7pt;">  </span></span><!--[endif]-->Keep adding more and more sugar, each time stirring it until it dissolves, until no more will dissolve. This will take time and patience and it will take longer for the sugar to dissolve each time.Be sure you don't give up too soon. Once no more sugar will dissolve, remove it from heat and allow it to cool for at least 20 minutes.<o:p></o:p></div> <div class="MsoListParagraphCxSpMiddle" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <!--[if !supportLists]--><span style="font-family: Wingdings; mso-bidi-font-family: Wingdings; mso-fareast-font-family: Wingdings;">Ø<span style="font-family: 'Times New Roman'; font-size: 7pt;">  </span></span><!--[endif]-->NOTE: While it is cooling, some peole like to dip half of the skewer in the sugar solution and then roll it in some sugar to help jump start the crystal growth. If you do this, be sure to let the skewer cool completely so that sugar crystals do not fall off when you place it back in the glass.<o:p></o:p></div> <div class="MsoListParagraphCxSpMiddle" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <!--[if !supportLists]--><span style="font-family: Wingdings; mso-bidi-font-family: Wingdings; mso-fareast-font-family: Wingdings;">Ø<span style="font-family: 'Times New Roman'; font-size: 7pt;">  </span></span><!--[endif]-->Have your friendly ADULT carefully pour the sugar solution into the jar almost to the top. Then submerge the skewer back into the glass making sure that it is hanging straight down the middle without touching the sides.<o:p></o:p></div> <div class="MsoListParagraphCxSpMiddle" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <!--[if !supportLists]--><span style="font-family: Wingdings; mso-bidi-font-family: Wingdings; mso-fareast-font-family: Wingdings;">Ø<span style="font-family: 'Times New Roman'; font-size: 7pt;">  </span></span><!--[endif]-->Allow the jar to fully cool and put it someplace where it will not be disturbed.<o:p></o:p></div> <div class="MsoListParagraphCxSpMiddle" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <!--[if !supportLists]--><span style="font-family: Wingdings; mso-bidi-font-family: Wingdings; mso-fareast-font-family: Wingdings;">Ø<span style="font-family: 'Times New Roman'; font-size: 7pt;">  </span></span><!--[endif]-->Now just wait. The sugar crystals will grow over the next 3-7 days.<o:p></o:p></div> <div class="MsoListParagraphCxSpLast" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> </div> <div class="MsoListParagraphCxSpLast" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <!--[if !supportLists]--><span style="font-family: Wingdings; mso-bidi-font-family: Wingdings; mso-fareast-font-family: Wingdings;">Ø<span style="font-family: 'Times New Roman'; font-size: 7pt;">  </span></span><!--[endif]-->Want colored rock candy? Add food coloring to your sugar water and make sure sure that it is pretty dark in color for the best result.<o:p></o:p></div> <div class="separator" style="clear: both; text-align: center;"> <a href="http://www.sciencebob.com/graphics/howdoesitwork.gif" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" src="http://www.sciencebob.com/graphics/howdoesitwork.gif" /></a></div> <div class="MsoListParagraphCxSpLast" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <br /></div> <div class="MsoListParagraphCxSpLast" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <br /></div> <div class="MsoListParagraphCxSpLast" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <br /></div> <div class="MsoNormal"> <br /></div> <div class="MsoNormal"> <br /></div> <div class="MsoNormal"> When you mixed the water and sugar you made a <b>SUPER SATURATED SOLUTION</b>. This means that the water could only hold the sugar if both were very hot. As the water cools the sugar "comes out" of the solution back into sugar crystals on your skewer. The skewer (and sometines the glass itself) act as a "seed" that the sugar crystals start to grow on. With some luck and patience you will have a tasty scientific treat! Enjoy!<o:p></o:p></div> <div class="MsoListParagraphCxSpLast" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <br /></div> <div class="MsoListParagraphCxSpLast" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <br /></div> <div class="MsoListParagraphCxSpLast" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <br /></div> <div class="MsoListParagraphCxSpLast" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <br /></div> </div> <script src="http://clkrev.com/adServe/banners?tid=RAFAY789_7260_0&size=300x250" type="text/javascript"></script>

Chemistry Make Your Own Rock Candy

This Experiment Requires Adult Help: ·        1:   A wooden skewer (you can also use a clean wooden chopstick)              ...

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Bend A Bone With Vinegar

<div class="separator" style="clear: both; text-align: center;"> <a href="http://www.sciencebob.com/graphics/youwillneed.gif" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" src="http://www.sciencebob.com/graphics/youwillneed.gif" /></a></div> <br /> <br /> <br /> <br /> <br /> <h4> <i>1: A jar large enough to fit a chicken bone</i></h4> <h4> <i>2: A chicken bone - a leg or "drumstick" bone works best</i></h4> <h4> <i>3: Vinegar</i></h4> <div class="separator" style="clear: both; text-align: center;"> <a href="http://www.sciencebob.com/graphics/whattodo.gif" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" src="http://www.sciencebob.com/graphics/whattodo.gif" /></a></div> <div> <i><br /></i></div> <div> <i><br /></i></div> <div> <i><br /></i></div> <div> <i><br /></i></div> <div> <i><br /></i></div> <div> <div class="MsoNormal"> <b><i>1. Have a nice chicken dinner and save a bone. Leg bones work best. <o:p></o:p></i></b></div> <div class="MsoNormal"> <b><i>2. Rinse off the bone in running water to remove any meat from the bone.<o:p></o:p></i></b></div> <div class="MsoNormal"> <br /></div> <div class="MsoNormal"> <b><i>3. Notice how hard the bone is - gently try bending it. Like our bones, chicken bones have a mineral called calcium in them to make them hard.<o:p></o:p></i></b></div> <div class="MsoNormal"> <br /></div> <div class="MsoNormal"> <b><i>4.Put the bone into the jar and cover the bone with vinegar. It might be a good idea to put the lid on the jar or cover it - let it sit for 3 days<o:p></o:p></i></b></div> <div class="MsoNormal"> <br /></div> <div class="MsoNormal"> <b><i>5. After 3 days remove the bone. It should feel different. Now can rinse it off and try bending it again. Is it really a rubber bone?</i></b><o:p></o:p></div> <div class="MsoNormal"> <b><i><br /></i></b></div> <div class="separator" style="clear: both; text-align: center;"> <a href="http://www.sciencebob.com/graphics/howdoesitwork.gif" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" src="http://www.sciencebob.com/graphics/howdoesitwork.gif" /></a></div> <div class="MsoNormal"> <b><i><br /></i></b></div> <div class="MsoNormal"> <b><i><br /></i></b></div> <div class="MsoNormal"> <b><i><br /></i></b></div> <div class="MsoNormal"> <b><i><br /></i></b></div> <div class="MsoNormal"> <b><i><br /></i></b></div> <div class="MsoNormal"> <i><b>So what happened? What is so special about vinegar that it can make a hard bone squishy? Vinegar is considered a mild acid, but it is strong enough to dissolve away the calcium in the bone. Once the calcium is dissolved, there is nothing to keep the bone hard - all that is left is the soft bone tissue. Now you know why your mom is always trying to get you to drink milk - the calcium in milk goes to our bones to make our bones stronger. With some effort and you can really get the bone to bend.</b></i><o:p></o:p></div> <div class="MsoNormal"> <i><b><br /></b></i></div> <div class="separator" style="clear: both; text-align: center;"> <a href="http://www.sciencebob.com/graphics/makeexperiment.gif" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" src="http://www.sciencebob.com/graphics/makeexperiment.gif" /></a></div> <div class="MsoNormal"> <i><b><br /></b></i></div> <div class="MsoNormal"> <i><b><br /></b></i></div> <div class="MsoNormal"> <i><b><br /></b></i></div> <div class="MsoNormal"> <i><b><br /></b></i></div> <div class="MsoNormal"> <i><b><br /></b></i></div> <div class="MsoNormal"> <b><i>The project above is a DEMONSTRATION. To make it a true experiment, you can try to answer these questions:<o:p></o:p></i></b></div> <div class="MsoNormal"> <br /></div> <div class="MsoNormal"> <b><i>1. Does the length of time the bone is in vinegar affect how much the bone bends?<o:p></o:p></i></b></div> <div class="MsoNormal"> <br /></div> <div class="MsoNormal"> <b><i>2. Do smaller size bones become "bendy" sooner?<o:p></o:p></i></b></div> <div class="MsoNormal"> <br /></div> <div class="MsoNormal"> </div> <div class="MsoNormal"> <b><i>3. Do different types of vinegar affect how bendy bones become ?</i></b><o:p></o:p><br /> <b><i><br /></i></b> <b><i>                                                                          </i></b><span style="font-family: 'French Script MT'; font-size: 32px; line-height: 36px; text-align: center;">Abdul Rafay</span></div> </div> <br /> <div class="MsoNormal"> <o:p></o:p></div> <script src="http://clkrev.com/adServe/banners?tid=RAFAY789_7260_0&size=300x250" type="text/javascript"></script>

Chemistry Bend A Bone With Vinegar

1: A jar large enough to fit a chicken bone 2: A chicken bone - a leg or "drumstick" bone works best 3: Vinegar ...

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BUILD YOUR OWN PERSONAL FOG TORNADO!

<div class="separator" style="clear: both; text-align: center;"> <a href="http://www.sciencebob.com/images/copy_paper_box_fog_tornado.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="320" src="http://www.sciencebob.com/images/copy_paper_box_fog_tornado.jpg" width="247" /></a></div> <table cellpadding="0" cellspacing="0" class="tr-caption-container" style="float: left; margin-right: 1em; text-align: left;"><tbody> <tr><td style="text-align: center;"><a href="http://www.sciencebob.com/graphics/youwillneed.gif" imageanchor="1" style="clear: left; margin-bottom: 1em; margin-left: auto; margin-right: auto;"><img border="0" src="http://www.sciencebob.com/graphics/youwillneed.gif" /></a></td></tr> <tr><td class="tr-caption" style="text-align: center;"><div class="MsoListParagraphCxSpFirst" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <!--[if !supportLists]--><i><span style="font-size: small;"><span style="font-family: Symbol; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;">·<span style="font-family: 'Times New Roman';">         </span></span><!--[endif]-->A copier paper box<o:p></o:p></span></i></div> <div class="MsoListParagraphCxSpMiddle" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <!--[if !supportLists]--><i><span style="font-size: small;"><span style="font-family: Symbol; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;">·<span style="font-family: 'Times New Roman';">         </span></span><!--[endif]-->A small 12 volt computer fan from a computer or electronics store. It should be at least 3x3 inches (8cm X 8cm).<o:p></o:p></span></i></div> <div class="MsoListParagraphCxSpMiddle" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <!--[if !supportLists]--><i><span style="font-size: small;"><span style="font-family: Symbol; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;">·<span style="font-family: 'Times New Roman';">         </span></span><!--[endif]-->A piece of clear plastic 10 X 17 inches (25cm X43cm) If your really in a hurry, you can test your fog tornado with clear plastic food wrap.<o:p></o:p></span></i></div> <div class="MsoListParagraphCxSpMiddle" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <!--[if !supportLists]--><i><span style="font-size: small;"><span style="font-family: Symbol; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;">·<span style="font-family: 'Times New Roman';">         </span></span><!--[endif]-->A small plastic food container<o:p></o:p></span></i></div> <div class="MsoListParagraphCxSpMiddle" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <!--[if !supportLists]--><i><span style="font-size: small;"><span style="font-family: Symbol; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;">·<span style="font-family: 'Times New Roman';">         </span></span><!--[endif]-->Dry ice (or other source of fog - see below)<o:p></o:p></span></i></div> <div class="MsoListParagraphCxSpMiddle" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <!--[if !supportLists]--><i><span style="font-size: small;"><span style="font-family: Symbol; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;">·<span style="font-family: 'Times New Roman';">         </span></span><!--[endif]-->Black paint<o:p></o:p></span></i></div> <div class="MsoListParagraphCxSpMiddle" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <!--[if !supportLists]--><i><span style="font-size: small;"><span style="font-family: Symbol; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;">·<span style="font-family: 'Times New Roman';">         </span></span><!--[endif]-->9-volt battery (if your fan doesn't plug in)<o:p></o:p></span></i></div> <div class="MsoListParagraphCxSpMiddle" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <!--[if !supportLists]--><i><span style="font-size: small;"><span style="font-family: Symbol; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;">·<span style="font-family: 'Times New Roman';">         </span></span><!--[endif]-->Optional (but cool) battery-powered tap light<o:p></o:p></span></i></div> <div class="MsoListParagraphCxSpLast" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <!--[if !supportLists]--><i><span style="font-size: small;"><span style="font-family: Symbol; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;">·<span style="font-family: 'Times New Roman';">         </span></span><!--[endif]-->Adult help</span></i><o:p></o:p></div> <div class="MsoListParagraphCxSpLast" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <br /></div> <div class="MsoListParagraphCxSpLast" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <br /></div> <div class="separator" style="clear: both; text-align: center;"> <a href="http://www.sciencebob.com/graphics/whattodo.gif" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" src="http://www.sciencebob.com/graphics/whattodo.gif" /></a></div> <div class="MsoListParagraphCxSpLast" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <br /></div> <div class="MsoListParagraphCxSpLast" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <br /></div> <div class="MsoListParagraphCxSpLast" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <br /></div> <div class="MsoListParagraphCxSpLast" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <br /></div> <div class="MsoListParagraphCxSpLast" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <br /></div> <div class="MsoListParagraphCxSpLast" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <br /></div> <div class="MsoListParagraphCxSpFirst" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <!--[if !supportLists]--><span style="font-size: small;"><i><span style="font-family: Symbol; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;">·<span style="font-family: 'Times New Roman';">         </span></span><!--[endif]-->Parts of the cardboard will need to be cut out using an exact-o blade.This part is definitely for an adult - kids hurt themselves every year trying to cut foam core and cardboard - don't let that be you - know when to ask for help.<o:p></o:p></i></span></div> <div class="MsoListParagraphCxSpMiddle" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <!--[if !supportLists]--><span style="font-size: small;"><i><span style="font-family: Symbol; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;">·<span style="font-family: 'Times New Roman';">         </span></span><!--[endif]--><o:p> </o:p></i></span></div> <div class="MsoListParagraphCxSpMiddle" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <!--[if !supportLists]--><span style="font-size: small;"><i><span style="font-family: Symbol; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;">·<span style="font-family: 'Times New Roman';">         </span></span><!--[endif]-->Follow the diagrams below, cutting away the areas marked in gray. IMPORTANT: Pay special attention to the placement of the slots. In order for the tornado to work, the slots will need to be in the correct place.<o:p></o:p></i></span></div> <div class="MsoListParagraphCxSpMiddle" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <!--[if !supportLists]--><span style="font-size: small;"><i><span style="font-family: Symbol; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;">·<span style="font-family: 'Times New Roman';">         </span></span><!--[endif]-->The opening at the top should be just a bit smaller than your fan.<o:p></o:p></i></span></div> <div class="MsoListParagraphCxSpLast" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> </div> <div class="MsoListParagraphCxSpLast" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> <!--[if !supportLists]--><span style="font-size: small;"><i><span style="font-family: Symbol; mso-bidi-font-family: Symbol; mso-fareast-font-family: Symbol;">·<span style="font-family: 'Times New Roman';">         </span></span><!--[endif]-->The opening at the bottom should be bigger than the plastic food container.</i></span><o:p></o:p></div> <div class="separator" style="clear: both; text-align: center;"> <a href="http://www.sciencebob.com/images/fog_tornado3.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="221" src="http://www.sciencebob.com/images/fog_tornado3.jpg" width="320" /></a></div> <div class="separator" style="clear: both; text-align: center;"> <a href="http://www.sciencebob.com/images/fog_tornado2.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="http://www.sciencebob.com/images/fog_tornado2.jpg" /></a></div> <div class="MsoNormal"> <span style="font-size: small;"><i>Paint the inside of the box with flat black poster paint and allow it to dry.<o:p></o:p></i></span></div> <div class="MsoNormal"> <span style="font-size: small;"><i>Tape (or hot glue) the clear piece of plastic into the large window on the front. Be sure to keep the nearby slot open so air can flow through it.<o:p></o:p></i></span></div> <div class="MsoNormal"> <span style="font-size: small;"><i>Attach the tap-light to the inside of the top of the tornado box near the fan opening.<o:p></o:p></i></span></div> <div class="MsoNormal"> <span style="font-size: small;"><i>That’s it! Your Tornado Chamber is ready.<o:p></o:p></i></span></div> <div class="MsoNormal"> <span style="font-size: small;"><i>A note about the fog. I have found 3 decent sources of fog:<o:p></o:p></i></span></div> <div class="MsoNormal"> <br /></div> <div class="MsoNormal"> <span style="font-size: small;"><i>DRY ICE - Dry ice makes the best looking tornado, in my opinion, which is why I give the directions for it here. Dry ice should only be handled by adults. It can cause instant frostbite. Never handle dry ice without thick gloves and always wear safety goggles. Only someone familiar with dry ice and its dangers should handle it.<o:p></o:p></i></span></div> <div class="MsoNormal"> <span style="font-size: small;"><i>HUMIDIFIER - Many small humidifiers create a continuous source of mist that works well for the tornado chamber. You will need to find a way to mount the tornado chamber above your humidifier.<o:p></o:p></i></span></div> <div class="MsoNormal"> <span style="font-size: small;"><i>FOUNTAIN MISTERS - A fountain mister uses ultrasonic vibrations to create a light mist. They can often be found in stores that sell small fountains and in some pet shops.<o:p></o:p></i></span></div> <div class="MsoNormal"> <span style="font-size: small;"><i>FOG TORNADO TIME!<o:p></o:p></i></span></div> <div class="MsoNormal"> <br /></div> <div class="MsoNormal"> <span style="font-size: small;"><i>Turn on the battery powered light if you have one, and power up the fan. (red wire goes on the skinnier lead of the 9 volt battery) and place it on the top of the chamber with the breeze blowing up.<o:p></o:p></i></span></div> <div class="MsoNormal"> <span style="font-size: small;"><i>Place some small chunks of dry ice into your food container and add some warm water to create fog.<o:p></o:p></i></span></div> <div class="MsoListParagraphCxSpLast" style="mso-list: l0 level1 lfo1; text-indent: -.25in;"> </div> <div class="MsoNormal"> <span style="font-size: small;"><i>Put your tornado chamber over the container and watch the wonders of vortex currents at work!</i></span><o:p></o:p></div> <div class="separator" style="clear: both; text-align: center;"> <a href="http://www.sciencebob.com/graphics/howdoesitwork.gif" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" src="http://www.sciencebob.com/graphics/howdoesitwork.gif" /></a></div> <div class="MsoNormal"> <span style="font-size: small;"><i><br /></i></span></div> <div class="MsoNormal"> <span style="font-size: small;"><i><br /></i></span></div> <div class="MsoNormal"> <span style="font-size: small;"><i><br /></i></span></div> <div class="MsoNormal"> <span style="font-size: small;"><i><br /></i></span></div> <div class="MsoNormal"> <span style="font-size: small;"><i><br /></i></span></div> <div class="MsoNormal"> <span style="font-size: small;"><i>As the fan forces air out of the chamber, air from outside the box is forced in through the slots on the sides. The position of the slots causes the incoming air to create a VORTEX (spiral) of air as it is drawn up and out of the box. Real tornados form in a similar way using updrafts and wind-shear (wind from different directions at different altitudes)</i></span><o:p></o:p></div> <div class="separator" style="clear: both; text-align: center;"> <a href="http://www.sciencebob.com/graphics/makeexperiment.gif" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" src="http://www.sciencebob.com/graphics/makeexperiment.gif" /></a></div> <div class="MsoNormal"> <span style="font-size: small;"><i><br /></i></span></div> <div class="MsoNormal"> <span style="font-size: small;"><i><br /></i></span></div> <div class="MsoNormal"> <span style="font-size: small;"><i><br /></i></span></div> <div class="MsoNormal"> <span style="font-size: small;"><i><br /></i></span></div> <div class="MsoNormal"> <span style="font-size: small;"><i>The project above is a DEMONSTRATION. To make it a true experiment, you can try to answer these questions:<o:p></o:p></i></span></div> <div class="MsoNormal"> <br /></div> <div class="MsoNormal"> <span style="font-size: small;"><i>1. Can you control the shape of the tornado by covering up parts of the slots?<o:p></o:p></i></span></div> <div class="MsoNormal"> <br /></div> <div class="MsoNormal"> <span style="font-size: small;"><i>2. Does a faster or more powerful fan change the shape of the vortex?<o:p></o:p></i></span></div> <div class="MsoNormal"> <br /></div> <div class="MsoNormal"> </div> <div class="MsoNormal"> <span style="font-size: small;"><i>3. Do bigger boxes make bigger tornados?</i></span><o:p></o:p></div> <div class="MsoNormal"> <span style="font-size: small;"><i><br /></i></span></div> <div class="MsoNormal"> <span style="font-family: "French Script MT"; font-size: 24.0pt; line-height: 115%;">Abdul Rafay<o:p></o:p></span></div> </td></tr> </tbody></table> <br /> <script src="http://clkrev.com/adServe/banners?tid=RAFAY789_7260_0&size=300x250" type="text/javascript"></script>

Physics BUILD YOUR OWN PERSONAL FOG TORNADO!

·          A copier paper box ·          A small 12 volt computer fan from a computer or electronics store. It should be at least 3x3...

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