Introduction In my report I will discuss what I did as an experiment and what I hope for it to achieve. Firstly I carried out an experiment to assay the effectiveness that a range of disinfectants have on the growth of ecoli and whether or not it can prevent it from growing. From the experiment i should be able to see that some disinfectants have a greater effect than others do. From this I shall then draw a conclusion and evaluation on what was the most effective‚ and could there have been any
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In this experiment‚ we planted bean plants and put stress on them by rubbing them a certain amount of times a day. This was to see how they might survive in a windy area or in an environment where they might constantly be touched or moved around. The bean plants were
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Bad Drivers! Story: So you’re out driving‚ enjoying the music playing in the background the wind blowing through your hair and you notice a car speed up in front of you and it kind of takes you off guard? Then as you continue to drive you notice the car slow down and suddenly push the brakes? No blinking right signal or anything! Then as you continue on your way the driver decides he or she will make a very SLOW right turn into a little street. So what bothers me? Bad drivers and their bad driving
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The reason for the experiment is to see which color from the light spectrum causes plants to grow faster. The prediction was that read light would cause the most growth in plants and that blue light would result in slower growth. The results did not support the hypothesis. Referring to table‚ one can see that blue caused both the spinach and radish plant to grow the most and that green light cause the plants to grow less. Spinach is a long-day plant therefore it was able to grow better under a constant
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Experiment 1: TLC Analysis of Analgesic Drugs 1/23/2011 Purpose: The goal of this experiment is to test our knowledge and understanding of TLC analysis by having us do a TLC analysis of analgesics to figure out their main chemical components. Calculations: 1.) Rf = Distance spot traveled/ distance solvent traveled Results: Table 1: TLC Analysis Analgesic Drugs | Rf Value | Acetaminophen | 0.323 | Aspirin | 0.597 | Caffeine | 0.081 | Unknown 154 (Plate 1) | 0.081‚ 0.306‚ 0.597
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The purpose of this lab was to determine if a there is a change in mass when a gas is produced and determine if gas has mass. To conduct this experiment‚ the group must be careful not to let the Alka-Seltzer tablet get wet before the bottle is closed by wiping the lip of the bottle and the cap so it remains dry‚ or risk gas escaping into the air and not being captured by the bottle. Also‚ the group must be sure to close the bottle tightly with the cap‚ because gas may escape this way as well. During
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Cardiovascular System: Blood Vessels Laszlo Vass‚ Ed.D. Version 42-0008-01-01 Purpose Please explain the purpose of this lab. Include in your explanation the major concepts you learned and any safety concerns associated with the lab. Purpose is to understand how the veins and arteries run through the body and how they function while the heart beats‚ where they deliver and drain blood to/from and how the cardiovascular system works together. Lock up the dogs while dissecting. wear face
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Helicopter Experiment Prediction: As the mass on the helicopter’s copters increases‚ the speed taken for the rotors to spin down faster‚ this is because there will be more downward pull from gravity‚ as the terminal velocity for a paper helicopter is low. Variables: Independent variable will be the mass that we change throughout the experiment. The dependant variable will be the time that we measure for the helicopter to reach the floor. Finally the controlled variables include‚ the helicopter
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A Bad Day Everyone has gone through bad times in their life. It is the moment when you wish the earth would open up and swallow you. The embarrassment and discomfort felt during that time which may only last a few seconds feels like the time has stood still. I woke up at 6.00 am‚ when I was rudely awakened by my screaming alarm clock. I pounded on it until I found the ‘snooze’ button. My eyelids felt heavy and dropped down. Tiredness got the best of me. I rolled back over to catch a few more
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PE/DB/0313 FLUID MECHANICS Page 2 of 2 H7 Friction Loss in a Pipe Description Experiments The Friction Loss in a Pipe apparatus allows students to study the change in the laws of resistance for laminar to turbulent flow and find the critical Reynolds number. The apparatus shows the flow transition point from laminar to turbulent‚ and is ideal for demonstrations as well as student experiments. Study of friction loss in a pipe‚ including: The equipment is a small-bore‚ straight
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