oscillating by the means of a springs in parallel Motion sensor and photogate connected to Science workshop interface Non-linear springy objects (rubber bands) Two rectangular weights of ~0.5 kg each to change the mass of the system Procedure: The lab experiment was done in two parts. Part 1 of the experiment was done by 2 different methods. Method 1 was with a force sensor‚ springs‚ and a weight hanger in which masses of 100 gram increments were added (up to 600 grams). A force vs. displacement
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and is my intellectual property. It does not contain the ideas or writing of other individuals/authors. Sarah SanAngelo March 4‚ 2015 Author Date 8 Lab Section # Alex Fry Lab Partner BIOL 1208 Writing Assignment 1 Results Worksheet Lab Topic: Temperature Introduction: In this experiment‚ water and potato enzymes were mixed to create a solution and placed into three test tubes. The first test tube was placed in 0 degrees Celsius‚ second
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Background The melting point of a compound is the temperature at which the solid is in equilibrium with its liquid. A solid compounds changes to a liquid when the molecules acquire enough energy to overcome the forces holding them together. A mixture melting point is useful in confirming and used to indentify an unknown compound‚ which we will be doing in this particular experiment. Purpose Measure the melting points of pure benzoic acid and pure mandelic acid. Determine the eutectic composition
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storage of ATP. The point of this lab is to understand how DNA can mutate over
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Frog Skeletal Muscle The aim of this experiment is to explore the basic physiological principles of skeletal muscle using the isolated frog (Rana pipiens or Xenopus laevis) gastrocnemius muscle. Students will dissect a double-pithed frog. Then‚ they will connect the muscle to the Force Transducer to measure twitch recruitment‚ effect of stretch‚ muscle summation‚ muscle tetanus‚ and muscle fatigue. Written by staff of ADInstruments. Experiment Contents 1. Instructor’s Reference (this
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Osmosis is a passive movement of water through a selectively permeable membrane moves from an area of higher concentration to an area of lower concentration. In this lab‚ we can determine the direction of diffusion of small molecules by measuring the diffusion of small molecules through dialysis tubing. This tubing acts as a selectively permeable membrane‚ and allow to pass larger molecules slowly. Introduction: Cells have kinetic energy and it causes the molecules of the cell to move around
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Melissa Kenney Dr. Braun/Lab K Lewis Symbols & Structures Purpose The purpose of this lab experiment is to practice writing Lewis symbols for elements and monatomic ions while writing Lewis structure for molecules and polyatomic ions. I will also be writing chemical equations using Lewis structures for
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cellular respiration to produce ATP. This process takes place in chloroplasts‚ which is a plastid that contains chlorophyll and involves two interlinked reactions‚ which are light dependent reactions and light independent reactions. Throughout our lab experiment‚ we focused on the affect access of light has on carbon dioxide during photosynthesis. Carbon dioxide levels decrease as oxygen levels increase and glucose is produced when light dependent reactions occur. Light energy is absorbed by photo
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G. Y. S. Period: 6 09/11/12 Osmosis Lab I. Objective: The purpose of this lab is to put the solutions in chronological order from least to most molarity. If the solutions are hypertonic then‚ the water will go in and the order of the substances will be C‚ D‚ A‚ B‚ E. II. Materials and Methods: See attached page. Results: Table 1.1 III. Table 1.1 | Initial | Final | % Change | A | 11.4 | 11.86 | 4.03% | B | 11.67 | 15.33 | 33.68% | C | 10.84 | 11.86 | 9.4% | D | 12.02 |
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Our biology class has graduated from fruit to frogs. We were scheduled to do the frog unit in April‚ but the frog company delivered our victims on January 14. Pickled frogs have a way of disappearing from the storage closet‚ so today Ms. Keen armed us with knives and told us not to gag. David Petrakis My Lab Partner is thrilled--anatomy at last. There are lists to memorize. The hopping bone’s connected to the jumping bone‚ the ribbet bone’s connected to the fly-catching bone. He seriously talks
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