Investigation of Water Potential in a Root Vegetable Introduction Background Information: Osmosis is the passage of water from a region of high water potential to a region of low water potential‚ down a water potential gradient through a semi-permeable membrane. If a plant cell‚ or an item with similar properties is put in water‚ three different things can happen: • If the surrounding area has a higher water potential‚ the cell will increase in mass through osmosis. The cell will
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difference in the osmolarity‚ no change in the cells sizes. PART 3 Procedure: 1. Repeat step (1 – 3 of PART 2) using 30% of sucrose solution. Results & Observations: In the hypertonic solution we can notice the shrinking of the cell membrane due to the loose of water. Discussion & Conclusion: Water will move in or out of the onion cells according to the concentration of sucrose in and out of the onion cells: in an isotonic solution no change will happen; in a hypertonic solution
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The handling of evidence at the scene is critical to maintaining the integrity of the evidence (Bunting‚ 2012‚ p. 90). Proper tools for acquiring the evidence at the scene are essential. These tools can be categorized as discipline-specific hardware and software‚ and general tools and supplies. Bunting (2012)‚ Gogolin (2013)‚ Kral (2011) and Nelson‚ Phillips and Steuart (2010) provide lists of item that a digital forensics investigator should have at the scene. The table at the end of this section
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Scientist extracts DNA to show how it’s useful to solve a crime scene. DNA is the most things to use for solving any crime. Finding DNA is pretty easy to find it can be you’re hair‚ blood‚ or even saliva. Using all that can help investigators to find who the criminal is. Scientist compares the DNA to make sure that their looking for the right person and not to make any mistakes. Scientists extract the DNA when they use blood‚ saliva‚ and other body fluids and tissues. For example the crime investigators
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Man’s Relationship With Nature The theme of man versus nature is one of the most widely explored topics in the realm of art and literature. Although long-range communication was unthinkable during the earlier years of art‚ influential artists and writers worldwide shared a common trait within their works. Many of these writers and artists never heard of or met one another‚ and each approached their subject with their own unique styles; however‚ they were ultimately able to explore the same theme
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ntroduction In this experiment we created standards to be able to compare a mystery substance off of. We were tasked to investigate a murder that took place by analyzing a man’s last meal to find out where he had ate based on the content of his stomach. Before we could test the mystery substance we had to establish standards‚ so we could compare off of them. Based on the results of this lab‚ we believed that the victim last ate at Buffalo Wild Wings (Veliz). Methods and Materials We started this
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PROJECT Introduction Title: Investigate one factor that affects the resistance of a wire. Reworded: I am going to investigate if changing the length of a wire changes its resistance. I predict that the longer the wire‚ the more resistance it has. Planning and Preparation Independent Variable: The variable I changed was length (cm). Dependent Variable: The variable I measured was resistance (Ω). Fixed Variables: The variables I kept constant to make it a fair test; were‚ the type of wire (nichrome)
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I have always seen paper clips as a useful material. I believe that paper clips are a part of my culture due to the 7 m high statue of paper clips situated in my home-country Norway. During World War II the statue symbolized Norwegian nationalism‚ and it was due to John Vaaler the man who invented paper clips that the statue is in Norway today. Paper clips are made from galvanized steel wire‚ meaning that the iron content is less than 100% because it also contains zinc. The galvanization method
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s prepared for Introduction to Sports Management‚ taught by Professor Dyer. Section 1: Personal Inventory 1.) I am a very nice‚ down to earth‚ humble kind of guy and I have ability to be a great leader and I lead by example. 3A.) Best Personal Accomplishments: 1.) Team Captain all fours years of my High School Varsity Tennis career and Captain my last two years on Varsity Football team. * Skills: Leader‚ reliable‚ respectful‚ determined‚ responsible‚ nice‚ great personality‚ extremely hard
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Resources Extraordinary or unique resources (human or material) needed to successfully complete this experience: Number Five graphic Materials needed for the lab were simple and inexpensive. Each group of two students required: * vitamin C indicator solution * three 50 mL beakers or medicine cups * one 10 mL graduated cylinder * three disposable pipettes * one stirring rod * Sources of Vitamin C: freshly squeezed OJ‚ bottled OJ‚ frozen OJ‚ canned
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