tag:blogger.com,1999:blog-28451040946968285622024-03-05T10:02:27.900-08:00SST2013 S2-03F ISSBy : Lim Ing, Li Ying, Berwyn & Ler howAnonymoushttp://www.blogger.com/profile/12643927556970713033noreply@blogger.comBlogger9125tag:blogger.com,1999:blog-2845104094696828562.post-57573071423555847882013-09-10T07:08:00.001-07:002013-09-10T07:37:03.336-07:00Title <div dir="ltr" style="background-color: white; font-family: 'Coming Soon'; line-height: 1.15; margin-bottom: 0pt; margin-top: 0pt; text-align: center;">
<span style="font-size: large;"><span style="background-color: transparent; font-family: Arial; vertical-align: baseline;">An investigation on water plants serving as a bio-indicator in determining the quality of water</span><span style="background-color: transparent; font-family: Arial; font-weight: bold; vertical-align: baseline;">.</span></span></div>
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Li Yinghttp://www.blogger.com/profile/16527787840350058801noreply@blogger.com0tag:blogger.com,1999:blog-2845104094696828562.post-8084799366962778882013-07-10T18:31:00.001-07:002013-07-15T06:56:49.594-07:00Literature Review : Growth of Duckweeds<b><span style="font-family: Arial, Helvetica, sans-serif;">Introduction</span></b><br />
<span style="font-family: Arial, Helvetica, sans-serif;">The plant we are going to use in the experiment will be duckweed, therefore learning about its growth is essential in order to carry out the experiment properly and accurately.</span><br />
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<b><span style="font-family: Arial, Helvetica, sans-serif;">Methods</span></b><br />
<span style="font-family: Arial, Helvetica, sans-serif;">The recommended conditions to grow duckweed in would be with moderate conditions of light and temperature. It must also be contained in a liquid with necessary nutrients. However, duckweed is very adaptable and therefore can grow easily in most conditions</span><br />
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<b><span style="font-family: Arial, Helvetica, sans-serif;">Procedure</span></b><br />
<span style="font-family: Arial, Helvetica, sans-serif;">In order to start growing duckweed, it needs to be placed in a container with water in it. Preferably a open container since it will allow the heat to escape, cooling the container. The temperature and light level of the set-up must also be monitored and kept at moderate levels since the experiment is about water quality, therefore other variables must be kept constant. It is important to keep the set up clean. The water will contain a variety
of other organisms. These will include bacteria, fungi, algae,
protozoa, and even small multicellular animals and insect larvae.
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<b><span style="font-family: Arial, Helvetica, sans-serif;">Conclusion</span></b><br />
<span style="font-family: Arial, Helvetica, sans-serif;">All other variables other than the water quality must be kept constant in order for the experiment to be accurate. The conditions the set-up is in must also be suitable for plant growth such that only the water quality might kill the plant.</span><br />
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<span style="font-family: Arial, Helvetica, sans-serif;">Landolt, E. and Kandeler, R. (1987) The family of Lemnaceae - a
monographic study </span><span style="font-family: Arial, Helvetica, sans-serif;">Retrieved July 10 2013 </span><span style="font-family: Arial, Helvetica, sans-serif;"><a href="http://www.mobot.org/jwcross/duckweed/growing-duckweed.htm">http://www.mobot.org/jwcross/duckweed/growing-duckweed.htm</a></span>Anonymoushttp://www.blogger.com/profile/12643927556970713033noreply@blogger.com0tag:blogger.com,1999:blog-2845104094696828562.post-9262053746561367772013-07-10T18:23:00.000-07:002013-07-15T06:55:55.988-07:00Literature Review : What is harmful to duckweed<b><span style="font-family: Arial, Helvetica, sans-serif;">Abstract</span></b><br />
<span style="font-family: Arial, Helvetica, sans-serif;">Duckweed are free floating plants whose population <span style="background-color: white;">can attain nuisance levels in Ohio ponds. Their explosive reproductive capacity can quickly cause a pond to be completely covered in the green plants in just a few weeks.</span><span style="background-color: white;"> </span></span><br />
<span style="font-family: Arial, Helvetica, sans-serif;"><span style="background-color: white;"><span style="background-color: transparent;"><br /></span></span>
<span style="background-color: white;"><span style="background-color: transparent;">There are many ways how to figure out what is affecting the duckweeds, causing it to be harmful towards it. When the temperature is cool, massive duckweeds will die off. Removing the weed naturally, a</span></span><span style="background-color: white;">dministering weed control chemicals and also installing a bubble aerator will eliminate duckweed.</span></span><br />
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<span style="font-family: Arial, Helvetica, sans-serif;"><span style="font-size: small; font-weight: normal;">Duckweed and Watermeal: Prevention and Control, </span><span style="font-size: small; font-weight: normal;">Ohio State University Extension Fact Shee</span><span style="font-size: small; font-weight: normal;">t</span><span style="font-size: small; font-weight: normal;"> </span><span style="font-size: small; font-weight: normal;">Retrieved by July 9, 2013 from </span></span><span style="font-family: Arial, Helvetica, sans-serif;"><a href="http://ohioline.osu.edu/a-fact/0014.html">http://ohioline.osu.edu/a-fact/0014.html</a></span>Li Yinghttp://www.blogger.com/profile/16527787840350058801noreply@blogger.com0tag:blogger.com,1999:blog-2845104094696828562.post-35499950096473088672013-07-08T21:39:00.001-07:002013-07-15T06:58:00.123-07:00Literature Review : Measuring Plant Growth<span style="font-family: Arial, Helvetica, sans-serif;"><u><b>INTRODUCTION</b></u></span><br />
<span style="font-family: Arial, Helvetica, sans-serif;">Plant growth is vital in our project as it determines the results as it shows the effect of water quality on the plants. </span><br />
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<span style="font-family: Arial, Helvetica, sans-serif;"><b><u>METHODS</u></b></span><br />
<span style="font-family: Arial, Helvetica, sans-serif;">There are different ways to measure plant growth. One of them is to count the number of plants multiplied but there are other ways like weighing the plants, finding the root mass, the root shoot ratio and Leaf Surface Area. </span><br />
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<span style="font-family: Arial, Helvetica, sans-serif;"><u><b>PROCEDURES</b></u></span><br />
<span style="font-family: Arial, Helvetica, sans-serif;">To weigh the plants one must remove it from its growing medium (in this cause water) and remove any free surface moisture before weighing it. Root mass is recommended as a final measurement as the plant must be removed from its growing medium in order to capture accurate data.The root:shoot ratio is one measure to help you assess the overall health of plants. For example, an increase in root:shoot ratio could be an indication of a healthier plant, provided the increase came from greater root size and not from a decrease in shoot weight. The Leaf Surface Area method is to trace the plant's leaf on a pice of graph paper and cut it out. This helps to determine if the plant is growing and its growing rate.</span><br />
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<span style="font-family: Arial, Helvetica, sans-serif;"><u><b>CONCLUSION</b></u></span><br />
<span style="font-family: Arial, Helvetica, sans-serif;">There are many methods of measuring plat growth. More than one can be used to ensure accuraccy of out results.</span><br />
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<span style="font-family: Arial, Helvetica, sans-serif;">Missouri Botanical Garden. (2003, May 3). Measuring Duckweed Growth Retrieved July 7, 2013 from </span><a href="http://www.mobot.org/jwcross/duckweed/duckweed-measuring-growth.htm" style="font-family: Arial, Helvetica, sans-serif;">http://www.mobot.org/jwcross/duckweed/duckweed-measuring-growth.htm</a>Lim Inghttp://www.blogger.com/profile/01971022805783656192noreply@blogger.com0tag:blogger.com,1999:blog-2845104094696828562.post-86715107647891839392013-07-06T03:03:00.002-07:002013-07-15T06:58:38.969-07:00Literature Review :Water Quality<span style="font-family: Arial, Helvetica, sans-serif; font-size: small;"><b>Introduction</b></span><br />
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<span style="font-size: small;"><span style="font-weight: normal;"><span style="font-family: Arial, Helvetica, sans-serif; line-height: 19px; text-align: justify;">Water quality is defined in terms of the chemical, physical and biological content of water. The water quality of rivers and lakes changes with the seasons and geographic areas, even when there is no pollution present. There is no single measure that constitutes good water quality. For instance, water suitable for drinking can be used for irrigation, but water used for irrigation may not meet drinking water guidelines. The quality of water appropriate for recreational purposes differs from that used for industrial processes.</span></span></span></h3>
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<span style="font-family: Arial, Helvetica, sans-serif; font-size: small;"><b>Good water quality</b></span><br />
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<span style="font-family: Arial, Helvetica, sans-serif; font-size: small;">Good quality drinking water is free from disease-causing organisms, harmful chemical substances, and radioactive matter. It tastes good, is aesthetically appealing, and free from objectionable color or odor.</span></div>
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<span style="font-family: Arial, Helvetica, sans-serif; font-size: small;">It should be noted that there is a difference between "pure water" and "safe drinking water". Pure water, often defined as water containing no minerals or chemicals, does not exist naturally in the environment. Under ideal conditions, water may be distilled to produce "pure" water. Safe drinking water, on the other hand, may retain naturally occurring minerals and chemicals such as calcium, potassium, sodium or fluoride which are actually beneficial to human health and may also improve the taste of the water. Where the minerals or chemicals occur naturally in concentrations that may be harmful or displeasing, then certain water treatment processes are used to reduce or remove the substances. In fact, some chemicals are actually added to produce good drinking water; the best examples of chemical addition are chlorine used as a disinfectant to destroy microbial contaminants, or fluoride used to reduce dental cavities.</span></div>
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<b>Bad water quality</b></span><br />
<span style="font-family: Arial, Helvetica, sans-serif; font-size: small;">There are many factors which causes bad water quality, those which may affect the growth of plants are:</span><br />
<span style="font-family: Arial, Helvetica, sans-serif; font-size: small;">Sewage Pollution - Harmful chemicals may be release together with the sewage.</span><br />
<span style="font-family: Arial, Helvetica, sans-serif; font-size: small;">Oil and other chemicals - Toxic to aquatic life and plants.</span><br />
<span style="font-family: Arial, Helvetica, sans-serif; font-size: small;">Detergents - Toxic to aquatic life, which decrease the amount of nutrients in the water for </span><span style="font-family: Arial, Helvetica, sans-serif; font-size: small;">the </span><span style="font-family: Arial, Helvetica, sans-serif; font-size: small;">plants.</span><br />
<span style="font-family: Arial, Helvetica, sans-serif; font-size: small;">Weeds - Takes in nutrient in the water > lesser nutrient in water > lesser nutrient for other </span><span style="font-family: Arial, Helvetica, sans-serif; font-size: small;">water plants.</span><br />
<span style="font-family: Arial, Helvetica, sans-serif; font-size: small;">Litter and rubbish - Encourages weed growth.</span><br />
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Upper Parramatta River Catchment Trust (2001) Causes of poor water quality</span><br />
<span style="font-family: Arial, Helvetica, sans-serif; font-size: small;"><a href="http://www.uprct.nsw.gov.au/water_quality/facts/causes_of_poor_wq.htm">http://www.uprct.nsw.gov.au/water_quality/facts/causes_of_poor_wq.htm</a></span><br />
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CSREES Florida water quality programme(November 20 2007) Water quality</span><br />
<span style="font-family: Arial, Helvetica, sans-serif; font-size: small;"><a href="http://waterquality.ifas.ufl.edu/Water%20primer/Water-Quality/Water%20quality.htm#WQ%204">http://waterquality.ifas.ufl.edu/Water%20primer/Water-Quality/Water%20quality.htm#WQ%204</a></span>berwyn(刘宗训)http://www.blogger.com/profile/00627328930116106353noreply@blogger.com0tag:blogger.com,1999:blog-2845104094696828562.post-91641876572487692802013-07-03T18:42:00.002-07:002013-07-10T07:52:50.663-07:00Hypothesis<span style="background-color: white; color: #4e2800; font-family: Arial, Helvetica, sans-serif; font-size: 20px; line-height: 28px;">Title: An investigation on using </span><span style="background-color: white; color: #333333; font-family: Arial, Helvetica, Verdana, sans-serif; font-size: 20px; line-height: 28px;">Human urine as a Fertilizer</span><br />
<span style="background-color: white; color: #333333; font-family: Arial, Helvetica, Verdana, sans-serif; font-size: 20px; line-height: 28px;">Hypothesis : Human urine can help plants grow better and act as a </span><br />
<span style="background-color: white; color: #333333; font-family: Arial, Helvetica, Verdana, sans-serif; font-size: 20px; line-height: 28px;"> fertilizer.</span><br />
<span style="background-color: white; color: #4e2800; font-family: Arial, Helvetica, sans-serif; font-size: 20px; line-height: 28px;"><span style="line-height: 25.55555534362793px;"><br /></span></span><span style="background-color: white; color: #4e2800; font-family: Arial, Helvetica, sans-serif; font-size: 20px; line-height: 27.986112594604492px;">Title: </span><span style="background-color: white; color: #4e2800; font-family: Arial, Helvetica, sans-serif; font-size: 20px; line-height: 28px;"><span style="line-height: 25.55555534362793px;">An investigation on </span><span style="line-height: 25.55555534362793px;">whether people can accurately</span></span><span style="background-color: white; color: #4e2800; font-family: Arial, Helvetica, sans-serif; font-size: 20px; line-height: 25.55555534362793px;"> determine if a </span><br />
<span style="background-color: white; color: #4e2800; font-family: Arial, Helvetica, sans-serif; font-size: 20px; line-height: 25.55555534362793px;"> smile is genuine or fake.</span><br />
<span style="background-color: white; color: #333333; font-family: Arial, Helvetica, Verdana, sans-serif; font-size: 20px; line-height: 27.986112594604492px;">Hypothesis : People can determine if a smile is genuine.</span><span style="font-family: Arial, Helvetica, sans-serif;"><span style="line-height: 25.55555534362793px;"><br style="background-color: white; color: #4e2800; font-size: 20px;" /></span></span><br />
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<span style="background-color: white; color: #4e2800; font-family: Arial, Helvetica, sans-serif; font-size: 20px; line-height: 27.986112594604492px;">Title: </span><span style="background-color: white; color: #4e2800; font-family: Arial, Helvetica, sans-serif; font-size: 20px; line-height: 28px;">An investigation on water plants determining the water </span><span style="background-color: white; color: #4e2800; font-family: Arial, Helvetica, sans-serif; font-size: 20px; line-height: 28px;">quality.</span><br />
<span style="background-color: white; color: #333333; font-family: Arial, Helvetica, Verdana, sans-serif; font-size: 20px; line-height: 27.986112594604492px;">Hypothesis : If the quality of water is poor, the number of duckweeds in it </span><br />
<span style="background-color: white; color: #333333; font-family: Arial, Helvetica, Verdana, sans-serif; font-size: 20px; line-height: 27.986112594604492px;"> will decrease.</span><span style="font-family: Arial, Helvetica, sans-serif;"><br style="background-color: white; color: #4e2800; font-size: 20px; line-height: 28px;" /></span>Lim Inghttp://www.blogger.com/profile/01971022805783656192noreply@blogger.com0tag:blogger.com,1999:blog-2845104094696828562.post-4235713562756088572013-07-03T06:49:00.001-07:002013-07-03T07:17:44.328-07:00Project Guide<span style="font-family: Arial, Helvetica, sans-serif;">Project 1: An investigation on using Human urine as a fertilizer</span><br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgT2eZRpGteEmbsU8QWSiQE1K4b1zv4V5aIHS3pPXIeN3_mypj1_LHA7T7PRCdmQ4tpeIkI-CSc_QAPQX5Z_2_BxZGLmEe5FA_84Sdq073Vb5lgnocWeler9HG_Q_ja4mEWZzWGJgLdQGHx/s607/Screen+Shot+2013-07-03+at+10.58.40+AM.png" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" height="230" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgT2eZRpGteEmbsU8QWSiQE1K4b1zv4V5aIHS3pPXIeN3_mypj1_LHA7T7PRCdmQ4tpeIkI-CSc_QAPQX5Z_2_BxZGLmEe5FA_84Sdq073Vb5lgnocWeler9HG_Q_ja4mEWZzWGJgLdQGHx/s640/Screen+Shot+2013-07-03+at+10.58.40+AM.png" width="640" /></a><span style="font-family: Arial, Helvetica, sans-serif;"><br /></span>
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<span style="font-family: Arial, Helvetica, sans-serif;">Project 2 : An investigation on whether people can accurately determine if a smile is genuine or fake.</span><br />
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<span style="font-family: Arial, Helvetica, sans-serif;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgyj59tg1yBO9GxxJot5bPE8-po60v0HS59M0YFdTVo7DGWFuP4JNG8Rr7JLCfH5EdgWcosUElf9UjznmpsxFcMGv6oiBjq32XGtzvu2UpYkohCyaKKa7DAp31D0s4siK2fV69ZfQ5RRpBO/s605/Screen+Shot+2013-07-03+at+11.05.11+AM.png" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" height="230" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgyj59tg1yBO9GxxJot5bPE8-po60v0HS59M0YFdTVo7DGWFuP4JNG8Rr7JLCfH5EdgWcosUElf9UjznmpsxFcMGv6oiBjq32XGtzvu2UpYkohCyaKKa7DAp31D0s4siK2fV69ZfQ5RRpBO/s640/Screen+Shot+2013-07-03+at+11.05.11+AM.png" width="640" /></a></span></div>
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<span style="font-family: Arial, Helvetica, sans-serif;">3. An investigation on water plants determining the water quality</span></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhvqz7rno_jxDtZ6rvBL1PjR5Qq8N-HPLhCbRbsRpjANXSEa1A-kO48PBYq-nSykU64YjFKiKhurJmIkffzySqVh_qPX0Oeg76ovjI-kDwb31DjQjd9k61BbbPocV46-N36v7WkJY2HQI2y/s608/Screen+Shot+2013-07-03+at+9.48.46+PM.png" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" height="230" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhvqz7rno_jxDtZ6rvBL1PjR5Qq8N-HPLhCbRbsRpjANXSEa1A-kO48PBYq-nSykU64YjFKiKhurJmIkffzySqVh_qPX0Oeg76ovjI-kDwb31DjQjd9k61BbbPocV46-N36v7WkJY2HQI2y/s640/Screen+Shot+2013-07-03+at+9.48.46+PM.png" width="640" /></a></div>
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Lim Inghttp://www.blogger.com/profile/01971022805783656192noreply@blogger.com0tag:blogger.com,1999:blog-2845104094696828562.post-719893085079485582013-07-02T18:00:00.000-07:002013-07-02T19:42:22.145-07:003 Possible Project Titles<span style="font-family: Arial, Helvetica, sans-serif;">1. An investigation on using </span><span style="background-color: white; color: #333333; font-family: Arial, Helvetica, Verdana, sans-serif;">Human urine as a Fertilizer</span><br />
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<a class="_553k" href="http://www.sciencebuddies.org/science-fair-projects/project_ideas/PlantBio_p046.shtml" rel="nofollow" style="background-color: white; cursor: pointer; font-family: Arial, Helvetica, sans-serif; line-height: 25.55555534362793px; text-decoration: none;" target="_blank">http://www.sciencebuddies.org/science-fair-projects/project_ideas/PlantBio_p046.shtml</a><br />
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<span style="font-family: Arial, Helvetica, sans-serif;"><span style="background-color: white; line-height: 25.55555534362793px;">2. An investigation on </span><span style="line-height: 25.55555534362793px;">whether people can accurately determine if a smile is genuine or fake.</span></span><br />
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<span style="font-family: Arial, Helvetica, sans-serif;"><span style="line-height: 25.55555534362793px;"><a href="http://www.sciencebuddies.org/science-fair-projects/project_ideas/HumBeh_p043.shtml#summary">http://www.sciencebuddies.org/science-fair-projects/project_ideas/HumBeh_p043.shtml#summary</a></span></span><br />
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<span style="font-family: Arial, Helvetica, sans-serif;">3. An investigation on water plants determining the water quality</span><br />
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<span style="font-family: Arial, Helvetica, sans-serif;"><a href="http://www.sciencebuddies.org/science-fair-projects/project_ideas/PlantBio_p030.shtml">http://www.sciencebuddies.org/science-fair-projects/project_ideas/PlantBio_p030.shtml</a></span><br />
<span style="font-family: Arial, Helvetica, sans-serif;"><br /></span>Lim Inghttp://www.blogger.com/profile/01971022805783656192noreply@blogger.com0tag:blogger.com,1999:blog-2845104094696828562.post-18779993591822415302013-07-01T22:26:00.000-07:002013-07-01T22:26:03.213-07:00What is Scientific Method?<span style="font-family: Arial, Helvetica, sans-serif;"><span style="background-color: white; line-height: 19.1875px;">The </span><span style="background-color: white; line-height: 19.1875px;">scientific method</span><span style="background-color: white; line-height: 19.1875px;"> is a body of</span> techniques<span style="background-color: white; line-height: 19.1875px;"> for investigating phenomena</span><span style="background-color: white; line-height: 19.1875px;">, acquiring new knowledge</span><span style="background-color: white; line-height: 19.1875px;">, or correcting and integrating previous knowledge.</span><span style="background-color: white; line-height: 19.1875px;"> To be termed scientific, a method of inquiry must be based on</span> empirical<span style="background-color: white; line-height: 19.1875px;"> and </span><a href="https://en.wikipedia.org/wiki/Measurement" style="background-color: white; background-image: none; color: #0b0080; line-height: 19.1875px; text-decoration: none;" title="Measurement">m</a>easurable<span style="background-color: white; line-height: 19.1875px;"> evidence subject to specific principles of reasoning.</span></span><br />
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