FLinn SCIEnTIFIC Inc. "Your Safer Source for Science Supplies" p.o. Box 219 • Batavia‚ Illinois 60510 • 1-800-452-1261 • flinn@flinnsci.com • Visit our website at: www.flinnsci.com Liquid Chromatography AP Chemistry Laboratory # 18 Publication No. 10535A Catalog No. AP9093 Introduction In this experiment‚ liquid chromatography is used to separate the substances that are present in grape-flavored Kool-Aid®. First‚ the dyes responsible for the purple color‚ FD&C Blue #1 and Red #40 are separated
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Ice Water Fish Vs. Room Temp Fish INTRODUCTION Fish‚ being an aquatic animal‚ has a respiratory system that is different from animals that live on land. It is capable of breathing underwater‚ without coming up for oxygen. Fish are able to breathe underwater due to a breathing organ known as gills; which is made up of thin feathery sheets of tissue membrane containing many blood vessels through which oxygen passes allowing fish to breathe (Edmonson 2006). Fish breathe by the process of water
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The Physics Of Scuba Diving: Swimming with the Fish Have you ever wondered what it would be like to swim with the fish and explore the underwater jungle that covers two-thirds of the earth ’s surface? I have always been interested in water activities; swimming‚ diving and skiing‚ and I felt that scuba was for me. My first dive took place while on a family vacation. I came across a dive shop offering introductory dives‚ which immediately caught my interest. After much convincing (my
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to career diving. Scuba Diving is just not a swim in the water‚ scuba requires certification‚ uses technical equipment‚ and there is a lot of risk involved with scuba diving. Scuba‚ which is actually an acronym for "self-contained breathing apparatus"‚ Allows divers to dive deeper and stay submerged longer. Scuba comes a long way from other forms of diving by using an air-tank and regulator. This is what allows them to stay under longer and dive deeper. Scuba originally began with military
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heavy and exaggerated breathing overwhelms your ears. If you continue to only listen to the scene the breathing will continue for around a minute then suddenly is interrupted by a splash. It is at that point where your ears will suggest to you that maybe Darth Vader did not just make a guest experience but in fact our character is in some sort of scuba gear. After the splash we then hear what sounds like repeated surfacing and then diving back under water. The breathing sound is replaced with
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sea that’s where it all began. In time he invented an underwater breathing machine so you can stay down there for a long period of time Jacques was the Development of
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Flinn Scientific’s Student Safety Contract PURPOSE Science is a hands-on laboratory class. You will be doing many laboratory activities which require the use of hazardous chemicals. Safety in the science classroom is the #1 priority for students‚ teachers‚ and parents. To ensure a safe science classroom‚ a list of rules has been developed and provided to you in this student safety contract. These rules must be followed at all times. Two copies of the contract are provided. One copy must
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Clockwork Orange the protagonist‚ Alex is portrayed as a violent fifteen-year-old boy who deals with the inability to express his violent nature due to a treatment that forces him to feel pain every time he thinks about a violent thought. On the other hand‚ Beowulf‚ from the epic poem Beowulf‚ is a revered warrior who fights to protect the people of Denmark from the feared and vicious monster‚
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Introduction The membrane of a living cell plays a vital role in regulating what goes into and out of the cell. Some characteristics of cell membranes are discovered in this exercise. Background The following information is key for the interpretation of the results of this experiment 1. Neutral red is a vital stain. It stains cells without quickly killing them. Many biological stains kill living cells. 2. Neutral red goes through an obvious color change‚ from red at about pH 6.8 to yellow
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<http://www.slate.com/id/2132203/>. Driscoll‚ Sally Flynn. "The History of Gangs in Kansas City‚ Missouri." Gangs: An Overview (2009): 1-4. Web. 12 May 2011. <http://www.maincor.org/userfiles/file/Gangs%20in%20Kansas%20City%20(Public).pdf>. Flinn‚ Alex. Breaking Point. New York: HarperTempest‚ 2002. Print. Reflection Overall‚ I learned that many people feel the need to join gangs to make themselves feel better. Some also join gangs because they feel that it’s the only path left for them to go
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