tag:blogger.com,1999:blog-51794698405502606252024-03-21T10:45:20.207+13:00My Science LogWelcome to my Science Log where I will show you how I am doing with my Science Fair project.Cheyennehttp://www.blogger.com/profile/09641880871713793587noreply@blogger.comBlogger24125tag:blogger.com,1999:blog-5179469840550260625.post-67906223378090343962008-02-20T16:15:00.003+13:002008-02-20T16:22:51.128+13:00My Science Fair Voice Thread<object width="480" height="360"><param name="movie" value="http://voicethread.com/book.swf?b=13432"></param><param name="wmode" value="transparent"></param><embed src="http://voicethread.com/book.swf?b=13432" type="application/x-shockwave-flash" wmode="transparent" width="480" height="360"></embed></object>Cheyennehttp://www.blogger.com/profile/09641880871713793587noreply@blogger.com37tag:blogger.com,1999:blog-5179469840550260625.post-54572701613009819902007-08-01T16:46:00.000+12:002007-08-01T16:48:58.912+12:00And the winner is....I have some very exciting news to announce! For my science fair this year, I have won my class Nobel Prize! Along with this recognition I have also received a medal, and been interviewed for the local newspaper.<br /><br />Don't forget, even if my science fair is over, I still would like some feedback on my work.Cheyennehttp://www.blogger.com/profile/09641880871713793587noreply@blogger.com3tag:blogger.com,1999:blog-5179469840550260625.post-60546598950739795912007-06-25T14:16:00.000+12:002007-06-25T14:20:21.353+12:00My Evaluation<div style="text-align: center;"><span style="font-size:180%;"><a href="http://www.bbi.school.nz/studentfiles/05cheyennesciencevideo.mov">My Science Fair Evaluation Video</a></span></div>Cheyennehttp://www.blogger.com/profile/09641880871713793587noreply@blogger.com0tag:blogger.com,1999:blog-5179469840550260625.post-64886819581423804482007-06-18T16:39:00.000+12:002007-06-18T16:48:55.370+12:00The Finished Product<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjvXc4H2KyyBpeoPwyhHztZegXy6phRWP67jsvfjGyRBo0s0rIkQNrLJMY_3hf42Q2sL_qeLpKHyvV0A-9JNJ26Ni-QwptLWduHA6McPImpGYjkItKNEG93H5l7e5LK0PBWO4_8_4S0RcA/s1600-h/DSC00472.JPG"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjvXc4H2KyyBpeoPwyhHztZegXy6phRWP67jsvfjGyRBo0s0rIkQNrLJMY_3hf42Q2sL_qeLpKHyvV0A-9JNJ26Ni-QwptLWduHA6McPImpGYjkItKNEG93H5l7e5LK0PBWO4_8_4S0RcA/s400/DSC00472.JPG" alt="" id="BLOGGER_PHOTO_ID_5077261765883929666" border="0" /></a>Cheyennehttp://www.blogger.com/profile/09641880871713793587noreply@blogger.com1tag:blogger.com,1999:blog-5179469840550260625.post-8797746093008606912007-06-18T16:37:00.001+12:002007-06-18T16:39:23.112+12:00Bacteria TestingDue to lack of time and materials I am unable to conduct this bacteria experiment.Cheyennehttp://www.blogger.com/profile/09641880871713793587noreply@blogger.com0tag:blogger.com,1999:blog-5179469840550260625.post-2678691096382945192007-06-17T11:40:00.001+12:002007-06-17T12:59:52.171+12:00My Science Fair BoardThis week I have worked mainly on my board. I've spray-painted it, printed all my information, pictures and graphs, backed it on coloured paper and made my heading. I have just finished working on my board and will post pictures soon.Cheyennehttp://www.blogger.com/profile/09641880871713793587noreply@blogger.com14tag:blogger.com,1999:blog-5179469840550260625.post-21729226579466138062007-06-11T16:33:00.000+12:002007-06-13T20:04:58.279+12:00My Conclusion of my HypothesisMy hypothesis was proven incorrect and correct at the same time. I estimated that Distilled would be healthier, but H2Go proved that guess wrong. I was correct in the sense that I thought tap would be the worst. <br /><br />I found this really interesting, because automatically people think that distilled would be healthier, but in actual fact the brand H2Go was healthier by far. In fact, distilled was one of the worse ones. <br /><br />What was astounding was that our tap water was actually quite bad! Everyone goes to the tap and drinks the fresh water. This also shows that having a filter will make your water a lot healthier. According to my observations, having a filter will not only make it healthier, but it will also take out excess chlorine in your water.Cheyennehttp://www.blogger.com/profile/09641880871713793587noreply@blogger.com11tag:blogger.com,1999:blog-5179469840550260625.post-62168486064517847772007-06-10T10:32:00.000+12:002007-06-13T20:01:19.331+12:00ConclusionConclusion of pH and Chlorine Results:<br /><br />H2Go proved itself the best, while tap proved itself worst. Distilled was the most acidic, with Pump close behind. Tap had the most alkaline. The healthiest of the pH were filtered, H2Go, and surprisingly enough, pond! No one water had a perfect 7.0 pH level. As for the chlorine, things were different. Tap was the only water with a little chlorine. This is good and bad, because water needs a little bit of chlorine to kill off bacteria but it does have a smell and taste. The results state that having a filter will decrease the amount of chlorine in the water that you drink. Pump, H2Go and Distilled went through a scanning system to kill off all bacteria, therefore giving no need for chlorine in those waters. The copper results were fine. Having a very slight amount of copper in your water is fine, but anything over the maximum contaminant level will cause stomach and intestinal sickness. The iron results were fine too. All the iron levels were below the maximum contaminant level.Cheyennehttp://www.blogger.com/profile/09641880871713793587noreply@blogger.com4tag:blogger.com,1999:blog-5179469840550260625.post-55490995491052801512007-06-08T20:44:00.001+12:002007-06-08T20:44:58.235+12:00My Science Fair Video<embed style="width:400px; height:326px;" id="VideoPlayback" type="application/x-shockwave-flash" src="http://video.google.com/googleplayer.swf?docId=-8767160824296363732&hl=en" flashvars=""> </embed>Cheyennehttp://www.blogger.com/profile/09641880871713793587noreply@blogger.com4tag:blogger.com,1999:blog-5179469840550260625.post-49343121890385289292007-06-07T16:03:00.000+12:002007-06-08T07:40:33.260+12:00A Few Facts to Know...From looking at all my graphs, you probably don't know whether having things like iron in your water is good or bad.<br /><br />It isn't very good to have iron in your household water, because it gives water some taste and also makes the water stain things.<br /><br />It isn't a good idea to have too much copper in your water as well, because this can cause stomach and intestinal sickness.<br /><br />The proper amount of copper and iron is below:<br /><br />The MCLG level (Maximum Contaminant Level Goal) for copper is 1.3ppm. Copper can enter the water when it is going through the kilometers of metal piping.<br /><br />The MCLG level for iron is 0.3 to 1ppm. Iron also causes discoloured water and it also doesn't work very well in a filter.Cheyennehttp://www.blogger.com/profile/09641880871713793587noreply@blogger.com0tag:blogger.com,1999:blog-5179469840550260625.post-65184953725226584952007-06-06T17:58:00.000+12:002007-06-06T18:00:04.289+12:00My Results for Iron Testing<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgoiuAPLAGwAXZ23AWavCHxm0PMbdLkp-NMCMUeJXkd1cs9EFPIkEiTdVzceJmeeMV9K0VVCr2PORlMjdAwdkzndgW_5D3TbIMvcFAr9qfGaon8zfNoHoTsbIFIP5XCS0RRqQJlxplAPa4/s1600-h/My+Iron+Test+Results.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgoiuAPLAGwAXZ23AWavCHxm0PMbdLkp-NMCMUeJXkd1cs9EFPIkEiTdVzceJmeeMV9K0VVCr2PORlMjdAwdkzndgW_5D3TbIMvcFAr9qfGaon8zfNoHoTsbIFIP5XCS0RRqQJlxplAPa4/s400/My+Iron+Test+Results.jpg" alt="" id="BLOGGER_PHOTO_ID_5072827031762183202" border="0" /></a><br /><div style="text-align: center;">Double Click to enlarge<br /></div>Cheyennehttp://www.blogger.com/profile/09641880871713793587noreply@blogger.com1tag:blogger.com,1999:blog-5179469840550260625.post-29741742848265352682007-06-06T17:57:00.001+12:002007-06-06T18:02:06.973+12:00Results for Copper Testing<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiLyiE1OTHfRjooJN5OPrvxyXWBMgRliJdUt3kWO1P2bSwONRVZBW9rm3aPIkNXdmnZ2hnzN9dct603nfidbhAEblX0fqLpcDubSnm3mO_KV4HJDi9ZqnXPhwRKY2JnAcw0UxKFVDkJFcY/s1600-h/My+Copper+Test+Results.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiLyiE1OTHfRjooJN5OPrvxyXWBMgRliJdUt3kWO1P2bSwONRVZBW9rm3aPIkNXdmnZ2hnzN9dct603nfidbhAEblX0fqLpcDubSnm3mO_KV4HJDi9ZqnXPhwRKY2JnAcw0UxKFVDkJFcY/s400/My+Copper+Test+Results.jpg" alt="" id="BLOGGER_PHOTO_ID_5072826610855388178" border="0" /></a><br /><br /><div style="text-align: center;">Double Click to enlarge<br /></div>Cheyennehttp://www.blogger.com/profile/09641880871713793587noreply@blogger.com0tag:blogger.com,1999:blog-5179469840550260625.post-28811208840219534812007-06-06T15:46:00.000+12:002007-06-06T15:50:17.937+12:00ResultsI hope all of you have looked at my graphs, some interesting results in there!<br /><br />I was surprised to see that the chlorine results were negative for all the waters except tap. This shows that a filter decreases the amount of chlorine.<br /><br />The pH was interesting too. They ranged from 6.4 to 7.4! The healthy state for drinking water is 7.0. None of our waters were exactly that.<br /><br />Over the weekend I will test the breathing rate of the bacteria.<br /><br />Please comment and tell me what I can improve on.Cheyennehttp://www.blogger.com/profile/09641880871713793587noreply@blogger.com3tag:blogger.com,1999:blog-5179469840550260625.post-36531545656166754162007-06-05T19:23:00.001+12:002007-06-05T19:24:18.302+12:00My Chlorine Test Results<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEglHaahtmuoS6Pr-_zJIQnUkc_A84nu9mWzGsFewNsWXp2crhfWf3cJDmpa8r88GXpL1uw68pBQk5sFCeKnPTZXfOP1R4L7EqnEbW994JjVUOXpqcvISIpSnN-NJ591kLaQEjk7TknACYQ/s1600-h/My+Chlorine+Test+Results.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEglHaahtmuoS6Pr-_zJIQnUkc_A84nu9mWzGsFewNsWXp2crhfWf3cJDmpa8r88GXpL1uw68pBQk5sFCeKnPTZXfOP1R4L7EqnEbW994JjVUOXpqcvISIpSnN-NJ591kLaQEjk7TknACYQ/s400/My+Chlorine+Test+Results.jpg" alt="" id="BLOGGER_PHOTO_ID_5072477653352522754" border="0" /></a><br /><div style="text-align: center;">Double Click to enlarge<br /></div>Cheyennehttp://www.blogger.com/profile/09641880871713793587noreply@blogger.com0tag:blogger.com,1999:blog-5179469840550260625.post-90134747953884562292007-06-05T19:21:00.000+12:002007-06-05T19:25:31.433+12:00My pH Test Results<div style="text-align: center;"><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhvfP_mjoWDmk5Ujy8ya-IulzaKfJ_8-U22-BK49yRAzZmYDiuMFCgrCf18lQJhX0dWcSuvT7pGrdKQRdGFsA81_nzB-sDhtTZgZA8snU1SKyUQeX2X2DhiyrKmD607W0I_BA4cnT4HFfI/s1600-h/My+pH+Test+Results.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer; width: 397px; height: 245px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhvfP_mjoWDmk5Ujy8ya-IulzaKfJ_8-U22-BK49yRAzZmYDiuMFCgrCf18lQJhX0dWcSuvT7pGrdKQRdGFsA81_nzB-sDhtTZgZA8snU1SKyUQeX2X2DhiyrKmD607W0I_BA4cnT4HFfI/s400/My+pH+Test+Results.jpg" alt="" id="BLOGGER_PHOTO_ID_5072477107891676146" border="0" /></a><br /><span style="color: rgb(255, 255, 255);">Double Click to enlarge</span><br /></div>Cheyennehttp://www.blogger.com/profile/09641880871713793587noreply@blogger.com1tag:blogger.com,1999:blog-5179469840550260625.post-13189981938687859772007-06-01T15:53:00.000+12:002007-06-01T15:56:51.292+12:00TestingOver the next few days, I will be experimenting. I will post up interesting information I come across, as well as a few results.<br /><br />Take a look at my method, and be sure to post up some comments about suggestions, questions, feedback, and more.Cheyennehttp://www.blogger.com/profile/09641880871713793587noreply@blogger.com0tag:blogger.com,1999:blog-5179469840550260625.post-5849202221786849462007-05-31T18:31:00.000+12:002007-05-31T18:32:27.952+12:00Why the bacteria experiment works and what to do next:<p class="MsoNormal"><span style="font-size: 10pt; font-family: "Comic Sans MS";"><span style="font-weight: bold;">What to do next:</span><br /></span></p><p class="MsoNormal"><span style="font-size: 10pt; font-family: "Comic Sans MS";">Rub a little Vaseline on the tip of the vials to make it easier to complete the next step.<o:p></o:p></span></p> <p class="MsoNormal"><span style="font-size: 10pt; font-family: "Comic Sans MS";">Attach a vial to each syringe.<o:p></o:p></span></p> <p class="MsoNormal"><span style="font-size: 10pt; font-family: "Comic Sans MS";"><!--[if !supportEmptyParas]--> <!--[endif]--><o:p></o:p></span></p> <p class="MsoNormal"><b><span style="font-size: 10pt; font-family: "Comic Sans MS";">What will happen:<o:p></o:p></span></b></p> <p class="MsoBodyText3"><span style="font-size: 10pt;">What will happen now is that when the bacteria in the water is breathing, the bubble will go up the vial, showing how many mLs of oxygen the bacteria are consuming. This is relevant because the more bacteria, the more oxygen consumed, so for example, the tap water consumed more oxygen, that means there is more bacteria in the tap water than any other sample of water.<o:p></o:p></span></p> <p class="MsoNormal"><span style="font-size: 10pt; font-family: "Comic Sans MS";"><!--[if !supportEmptyParas]--> <!--[endif]--><o:p></o:p></span></p> <p class="MsoBodyText3"><span style="font-size: 10pt;">We needed to soak the cotton balls in Potassium Hydroxide, because Potassium Hydroxide will absorb the Carbon Dioxide in the air, making it a healthier environment for the bacteria to thrive in.<o:p></o:p></span></p> <p class="MsoBodyText3"><span style="font-size: 10pt;"><!--[if !supportEmptyParas]--> <!--[endif]--><o:p></o:p></span></p> <p class="MsoBodyText3"><span style="font-size: 10pt;">Now, we need to record every 5 minutes how far the bubble has gone up the vial.<o:p></o:p></span></p> <p class="MsoBodyText3"><span style="font-size: 10pt;">Then we find the average of oxygen consumed per minute using the calculator.</span></p>Cheyennehttp://www.blogger.com/profile/09641880871713793587noreply@blogger.com1tag:blogger.com,1999:blog-5179469840550260625.post-5671174120867463082007-05-31T18:15:00.000+12:002007-06-18T16:36:40.544+12:00My Method<p class="MsoBodyText" style="font-family:arial;"><span style="font-size:100%;"><b><span style="font-size:12;">Testing for Chlorine: Using the ‘Magnor’ Test Kit</span></b></span></p> <p class="MsoBodyText" style="font-family:arial;"><span style="font-size:100%;"><span style="font-size:12;"><!--[if !supportEmptyParas]--> <!--[endif]--><o:p></o:p></span></span></p> <p class="MsoBodyText" style="margin-left: 0.5in; text-indent: -0.25in;font-family:arial;"><!--[if !supportLists]--><span style="font-size:100%;"><span style="font-size:12;">1.<span style="font-style: normal; font-variant: normal; font-weight: normal; line-height: normal; font-size-adjust: none; font-stretch: normal;font-size:7;" > </span></span><span style="font-size:12;">Fill the CL test tube with one of the different waters.</span></span><span style="font-size:100%;"><span style="font-size:12;"> <o:p></o:p></span></span><!--[endif]--></p> <p class="MsoBodyText" style="margin-left: 0.5in; text-indent: -0.25in;font-family:arial;"><!--[if !supportLists]--><span style="font-size:100%;"><span style="font-size:12;">2.<span style="font-style: normal; font-variant: normal; font-weight: normal; line-height: normal; font-size-adjust: none; font-stretch: normal;font-size:7;" > </span></span><span style="font-size:12;">Add one DPD tablet to the test tube. Avoid touching the</span></span><span style="font-size:100%;"><span style="font-size:12;"> tablet.<o:p></o:p></span></span><!--[endif]--></p> <p class="MsoBodyText" style="margin-left: 0.5in; text-indent: -0.25in;font-family:arial;"><!--[if !supportLists]--><span style="font-size:100%;"><span style="font-size:12;">3.<span style="font-style: normal; font-variant: normal; font-weight: normal; line-height: normal; font-size-adjust: none; font-stretch: normal;font-size:7;" > </span></span><span style="font-size:12;">Place cap on tube and shake</span></span><span style="font-size:100%;"><span style="font-size:12;"> to mix contents.<o:p></o:p></span></span><!--[endif]--></p> <p class="MsoBodyText" style="margin-left: 0.5in; text-indent: -0.25in;font-family:arial;"><!--[if !supportLists]--><span style="font-size:100%;"><span style="font-size:12;">4.<span style="font-style: normal; font-variant: normal; font-weight: normal; line-height: normal; font-size-adjust: none; font-stretch: normal;font-size:7;" > </span></span><span style="font-size:12;">Compare tube colour with<span style=""> </span>chlorine colour scale.</span></span><!--[endif]--></p> <p class="MsoBodyText" style="margin-left: 0.5in; text-indent: -0.25in;font-family:arial;"><!--[if !supportLists]--><span style="font-size:100%;"><span style="font-size:12;">5.<span style="font-style: normal; font-variant: normal; font-weight: normal; line-height: normal; font-size-adjust: none; font-stretch: normal;font-size:7;" > </span></span><span style="font-size:12;">Once recorded results, clea</span></span><span style="font-size:100%;"><span style="font-size:12;">n tube and test other water samples.<o:p></o:p></span></span><!--[endif]--></p> <p class="MsoBodyText" style="font-family:arial;"><span style="font-size:100%;"><span style="font-size:12;"><!--[if !supportEmptyParas]--> <!--[endif]--><o:p></o:p></span></span></p> <p class="MsoBodyText" style="font-family:arial;"><span style="font-size:100%;"><b><span style="font-size:12;">Testing for pH: Using th</span></b></span><span style="font-size:100%;"><b><span style="font-size:12;">e ‘Magnor’ Test Kit<o:p></o:p></span></b></span></p> <p class="MsoBodyText" style="font-family:arial;"><span style="font-size:100%;"><span style="font-size:12;"><!--[if !supportEmptyParas]--> <!--[endif]--><o:p></o:p></span></span></p> <p class="MsoBodyText" style="margin-left: 0.5in; text-indent: -0.25in;font-family:arial;"><!--[if !supportLists]--><span style="font-size:100%;"><span style="font-size:12;">1.<span style="font-style: normal; font-variant: normal; font-weight: normal; line-height: normal; font-size-adjust: none; font-stretch: normal;font-size:7;" > </span></span><span style="font-size:12;">Fill pH test tube with one of</span></span><span style="font-size:100%;"><span style="font-size:12;"> the different testing waters.<o:p></o:p></span></span><!--[endif]--></p> <p class="MsoBodyText" style="margin-left: 0.5in; text-indent: -0.25in;font-family:arial;"><!--[if !supportLists]--><span style="font-size:100%;"><span style="font-size:12;">2.<span style="font-style: normal; font-variant: normal; font-weight: normal; line-height: normal; font-size-adjust: none; font-stretch: normal;font-size:7;" > </span></span><span style="font-size:12;">Put 5 drops of Phenol Red soloution into test tube.</span></span><!--[endif]--></p> <p class="MsoBodyText" style="margin-left: 0.5in; text-indent: -0.25in;font-family:arial;"><!--[if !supportLists]--><span style="font-size:100%;"><span style="font-size:12;">3.<span style="font-style: normal; font-variant: normal; font-weight: normal; line-height: normal; font-size-adjust: none; font-stretch: normal;font-size:7;" > </span></span><span style="font-size:12;">Place cap on tube and shake</span></span><span style="font-size:100%;"><span style="font-size:12;"> to mix contents.<o:p></o:p></span></span><!--[endif]--></p> <p class="MsoBodyText" style="margin-left: 0.5in; text-indent: -0.25in;font-family:arial;"><!--[if !supportLists]--><span style="font-size:100%;"><span style="font-size:12;">4.<span style="font-style: normal; font-variant: normal; font-weight: normal; line-height: normal; font-size-adjust: none; font-stretch: normal;font-size:7;" > </span></span><span style="font-size:12;">Compare tube colour with pH colour scale.<o:p></o:p></span></span><!--[endif]--></p> <span style="font-size:100%;"><span style=";font-family:arial;font-size:12;" >Once recorded results, clean</span></span><span style="font-size:100%;"><span style=";font-family:arial;font-size:12;" > tube and test other water</span></span><span style="font-size:100%;"><span style=";font-family:arial;font-size:12;" > samples.<br /><br /></span></span> <p class="MsoBodyText"><span style="font-size:100%;"><b><span style="font-size:12;">Testing for bacteria:<o:p></o:p></span></b></span></p> <p class="MsoBodyText"><span style="font-size:100%;"><span style="font-size:12;"><!--[if !supportEmptyParas]--> <!--[endif]--><o:p></o:p></span></span></p> <p class="MsoBodyText"><span style="font-size:100%;"><span style="font-size:12;">Making the Potassium</span></span><span style="font-size:100%;"><span style="font-size:12;"> Hydroxide mixture:</span></span></p> <p class="MsoBodyText"><span style="font-size:100%;"><span style="font-size:12;">Mix up Potassium Hydroxide tablets with 50mLs of water.</span></span></p> <p class="MsoBodyText"><span style="font-size:100%;"><span style="font-size:12;">Shake Potassium Hydroxide</span></span><span style="font-size:100%;"><span style="font-size:12;"> mixture.<o:p></o:p></span></span></p> <p class="MsoBodyText"><span style="font-size:100%;"><span style="font-size:12;"><!--[if !supportEmptyParas]--> <!--[endif]--><o:p></o:p></span></span></p> <p class="MsoBodyText"><span style="font-size:100%;"><span style="font-size:12;">Making the bubbles for the vials:<o:p></o:p></span></span></p> <p class="MsoBodyText"><span style="font-size:100%;"><span style="font-size:12;">Mix 5-10 drops of food</span></span><span style="font-size:100%;"><span style="font-size:12;"> colouring with a little water in a glass or mug. The amount of</span></span><span style="font-size:100%;"><span style="font-size:12;"> water will not affect the experiment.</span></span></p> <p class="MsoBodyText"><span style="font-size:100%;"><span style="font-size:12;">Using vials, release a small amount of water/food colouring into each vial,</span></span><span style="font-size:100%;"><span style="font-size:12;"> making a bubble.</span></span></p> <p class="MsoBodyText"><span style="font-size:100%;"><span style="font-size:12;"><!--[if !supportEmptyParas]--> <!--[endif]--><o:p></o:p></span></span></p> <p class="MsoBodyText"><span style="font-size:100%;"><span style="font-size:12;">Preparing the 60mL syringes:<o:p></o:p></span></span></p> <p class="MsoBodyText"><span style="font-size:100%;"><span style="font-size:12;">Put 200mLs of each test water into each container.</span></span></p> <p class="MsoBodyText"><span style="font-size:100%;"><span style="font-size:12;">Mix 1 gram of sugar with each</span></span><span style="font-size:100%;"><span style="font-size:12;"> water and stir.<o:p></o:p></span></span></p> <p class="MsoBodyText"><span style="font-size:100%;"><span style="font-size:12;">Then take 1 mL of each water and squirt it in each syringe.</span></span><span style="font-size:100%;"><span style="font-size:12;"> <o:p></o:p></span></span></p> <p class="MsoBodyText"><span style="font-size:100%;"><span style="font-size:12;">Then put one cotton ball in each syringe.</span></span></p> <p class="MsoBodyText"><span style="font-size:100%;"><span style="font-size:12;">Then dip the three remaining cotton balls in the Potassium Hydroxide mixture.</span></span><span style="font-size:100%;"><span style="font-size:12;"> <o:p></o:p></span></span></p> <span style="font-size:100%;"><span style="font-size:12;">Put one Potassium Hydroxide</span></span><span style="font-size:100%;"><span style="font-size:12;"> dipped cotton ball in each</span></span><span style="font-size:100%;"><span style="font-size:12;"> syringe.</span></span><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjRD7vLvj7ja5IvhkvLsHWn7_2Qw3IN294drs_7ixdNGNsWCotn0uZw0vvRw_5UwVlIUt66rUc_N8Lbjj7ep-kgcQNBMrlnm_N_EYd2jNq2bwug98MTNjA7ImmMM0HkwmpZybD75rpUHBA/s1600-h/Scan10003.JPG"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjRD7vLvj7ja5IvhkvLsHWn7_2Qw3IN294drs_7ixdNGNsWCotn0uZw0vvRw_5UwVlIUt66rUc_N8Lbjj7ep-kgcQNBMrlnm_N_EYd2jNq2bwug98MTNjA7ImmMM0HkwmpZybD75rpUHBA/s400/Scan10003.JPG" alt="" id="BLOGGER_PHOTO_ID_5077258398629569586" border="0" /></a><p class="MsoBodyText"><span style="font-size:100%;"><span style="font-size:12;"><o:p></o:p></span></span></p> <p class="MsoBodyText"><span style="font-size:100%;"><span style="font-size:12;"><!--[if !supportEmptyParas]--> <!--[endif]--><o:p></o:p></span></span></p> <img src="file:///C:/DOCUME%7E1/WELHAM%7E1/LOCALS%7E1/Temp/moz-screenshot-6.jpg" alt="" />Cheyennehttp://www.blogger.com/profile/09641880871713793587noreply@blogger.com0tag:blogger.com,1999:blog-5179469840550260625.post-35525040853464372882007-05-31T18:00:00.000+12:002007-05-31T18:04:13.554+12:00My VariablesMeasured Variable: I will measure the mLs of oxygen the bacteria are consuming and the pH, chlorine, iron and copper levels.<br /><br />Test Variable: I will change the water to see which is the healthiest.<br /><br />Control Variable: I will keep the temperature of the water the same and also the amounts of water, sugar, chemicals etc.Cheyennehttp://www.blogger.com/profile/09641880871713793587noreply@blogger.com0tag:blogger.com,1999:blog-5179469840550260625.post-16005870144982128982007-05-29T16:24:00.000+12:002007-05-29T16:42:06.038+12:00My Apparatus That Is To Be Used<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi-p0_QGeUt0q5vj18GO68ImrWLJuCSVAowiTVvErM_Vj6w9iUAZ3h7lrhH5rybjsTa_s0M1ME-k9ek8cB9_B1ClQo6heF3otW0_TFFjKj4cRHPBVsRai90bn1u2X2mylW4sIeF99HlqE4/s1600-h/DSC00405.JPG"><img style="margin: 0pt 0pt 10px 10px; float: right; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi-p0_QGeUt0q5vj18GO68ImrWLJuCSVAowiTVvErM_Vj6w9iUAZ3h7lrhH5rybjsTa_s0M1ME-k9ek8cB9_B1ClQo6heF3otW0_TFFjKj4cRHPBVsRai90bn1u2X2mylW4sIeF99HlqE4/s320/DSC00405.JPG" alt="" id="BLOGGER_PHOTO_ID_5069838295933512610" border="0" /></a><br />Apparatus to use when testing for bacteria:<br /><br /><br /><br />Cotton Balls x6<br />Potassium Hydroxide tablets (7.5 grams)<br />3x 2mL Vials<br />3x 60mL syringes<br />Vaseline<br />200mL filtered water<br />200mL tap water<br />200ml pond water<br />3grams of sugar<br />50mL water to mix with tablets<br />20mL water to make bubbles<br />5-10 drops of food colouring (any colour)<br />1 pair of gloves<br />1 glass or cup<br />1 stopwatch<br />1 calculator<br />1x 1mL syringe<br /><br /><br />Apparatus for testing for Chlorine and pH:<br /><br />1x Chlorine and pH testing kit<br />Water to test (filtered, tap, bottled, distilled)Cheyennehttp://www.blogger.com/profile/09641880871713793587noreply@blogger.com1tag:blogger.com,1999:blog-5179469840550260625.post-47193188110961864652007-05-29T16:06:00.000+12:002007-05-29T16:10:36.981+12:00My Aim and HypothesisMy Aim:<br /><br />To determine whether filtered water, bottled water, tap water or distilled water is the healthiest, by checking the pH, chlorine, iron, copper and bacteria levels of the waters.<br /><br />My Hypothesis:<br /><br />I think that distilled water will be the healthiest because it is taken from boiled water, making it sterile. I also think that tap water will be the worst because it is not as purified as the other options.Cheyennehttp://www.blogger.com/profile/09641880871713793587noreply@blogger.com1tag:blogger.com,1999:blog-5179469840550260625.post-72869282962754793932007-05-28T08:46:00.000+12:002007-05-28T08:56:18.618+12:00A Great Find!Over the weekend I discovered something really interesting from Antony, my friend's uncle, who has a PhD in science. He told me that all water has bacteria, so it would be a little pointless in counting the colonies of bacteria in my water. But I could find the breathing rate of the bacteria, which would sort of show how much of it is in there, because of this:<br /><br />For Example: If there are heaps of mice in a jar, and only one mouse in a jar, the jar with a lot of mice will run out of oxygen faster than the jar with only one mouse. This happens because the more living things, the more oxygen consumed. Because of this, I can see which water will run out of oxygen first, which will show which water has more bacteria.<br /><br />I'll keep the blog up to date with pictures.Cheyennehttp://www.blogger.com/profile/09641880871713793587noreply@blogger.com4tag:blogger.com,1999:blog-5179469840550260625.post-66267788532022795972007-05-26T12:03:00.000+12:002007-05-28T18:21:36.643+12:00My Latest Discoveries<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjTi7mVMoH_sqi2ivhyphenhyphenwdVGxXRijEPgrewin4nH8iq0gL9Bwj9CnZVp-mk3-kJF5tT37w2hCpbZ7C002ZJf1NsPLBnCu3kswYAKWTWpOeP_pTY-azaUTvmwQVVT46xP6gZCmIpPJlDNl-g/s1600-h/DSC00399.JPG"><img style="margin: 0pt 10px 10px 0pt; float: left; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjTi7mVMoH_sqi2ivhyphenhyphenwdVGxXRijEPgrewin4nH8iq0gL9Bwj9CnZVp-mk3-kJF5tT37w2hCpbZ7C002ZJf1NsPLBnCu3kswYAKWTWpOeP_pTY-azaUTvmwQVVT46xP6gZCmIpPJlDNl-g/s320/DSC00399.JPG" alt="" id="BLOGGER_PHOTO_ID_5069492847418928018" border="0" /></a><br /><span style=";font-family:arial;font-size:100%;" >Today I bought a test kit for my project. It will test for pH and Chlorine.</span><span style="font-size:100%;"><br /><br /><br /><br /></span><span style=";font-family:arial;font-size:100%;" >I also found out about the normal requirements for water. Take a look at them.</span><span style="font-size:100%;"><br /></span><span style=";font-family:Arial;font-size:100%;" ><br />Iron: Too much iron may stain things. The normal amount is 0.3mg to 1ppm).<o:p></o:p></span> <p class="MsoNormal"><span style=";font-family:Arial;font-size:100%;" ><!--[if !supportEmptyParas]--><!--[endif]--> Hardness: For water to be moderately hard, it needs to have 3.5 grains to 7 grains of hardness.<o:p></o:p></span></p> <p class="MsoNormal"><span style=";font-family:Arial;font-size:100%;" ><!--[if !supportEmptyParas]--><!--[endif]--> Copper: The more copper makes water worse. The normal amount is 1.3ppm.<o:p></o:p></span></p> <p class="MsoNormal"><span style=";font-family:Arial;font-size:100%;" ><!--[if !supportEmptyParas]--><!--[endif]--> Chlorine: It is good to have 0.1 to 4mg, because it reduces bacteria growth.<o:p></o:p></span></p> <p class="MsoNormal"><span style=";font-family:Arial;font-size:100%;" ><!--[if !supportEmptyParas]--> <!--[endif]--></span><span style=";font-family:Arial;font-size:100%;" >pH: pH measures acid and alkalinity. A pH of 7 is neutral.</span><br /></p>Cheyennehttp://www.blogger.com/profile/09641880871713793587noreply@blogger.com1tag:blogger.com,1999:blog-5179469840550260625.post-28386322946906454662007-05-26T11:54:00.000+12:002007-05-26T12:00:32.941+12:00Welcome to my Science Log<span style="font-family: courier new;"><span style="font-family: arial;">My name is Cheyenne and I am in an Intermediate school in Year 7. On this blog, I will record all my interesting events, pictures and more to do with this year's Science Fair.<br /><br />For 2007, my science fair project will be about water. I will see whether filtered, tap, bottled or distilled water is the healthiest. I will test for pH, chlorine, iron, hardness, copper and possibly bacteria.<br /><br />Keep a look at my blog over the next several weeks to see what I am up to.<br /><br /><br /></span></span>Cheyennehttp://www.blogger.com/profile/09641880871713793587noreply@blogger.com1