AIM: Finding the gravitational field strength by using a simple harmonic motion of a spring and slotted masses. INTRODUCTION: When a mass suspended from a spring is displaced‚ due to the acceleration‚ kg s-2‚ from its equilibrium and released it will oscillate up and down with a kind of motion called simple harmonic motion‚ shm. The period (T)‚ time taken to measure for one complete oscillation‚ of this motion is: m/kg =
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How does change in precipitation changes beak size‚ population and the size of seeds? By: Karen Ann Weeks Dr. Tomáš J "Doc" Oberding January 20‚ 2013 Introduction and Purpose Hypothesis – When changing the level of precipitation which changes the seeds to hard large seeds the finches with the smaller beaks with become a smaller population when changing the precipitation which changes the seeds to smaller soft seeds will increase the population no matter what size of the beaks. This experiment
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Introduction The purpose of this lab is to understand how each offspring inherits its genotype and how its phenotype reflects it. Sex chromosomes determine the sex of the offspring‚ and the autosomes consist of all the other chromosomes that determine phenotypic traits. Dominant traits are the genes that are expressed‚ while the recessive traits are masked by the dominant traits. We used Drosophila melanogaster (fruit fly)‚ mutating the female fruit fly with a scalloped gene to change the phenotype
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CHM151LL Laboratory Report Form Fall 2011 Title: Project 5: SPECTROPHOTOMETRIC ANALYSIS OF A PENNY Date Run: 04/03/2012 Date Submitted: 04/15/2012 Grade: _____________________ Objectives: The purpose of this experiment is to use spectrophotometry to determine the percentage of copper in a copper-clad penny‚ and to determine the thickness of copper layer on the copper-clad penny. Introduction: In the spectrophotometric analysis of a penny lab‚ we will be conducting three
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Stoichiometry lab 1 Purpose: The purpose of this lab is to find the limiting reactant‚ also to find the percentage yield and percentage purity of the reaction that happens between Calcium Chloride and Sodium Carbonate. The other purpose was to know how the reaction can be balanced and created. Hypothesis: In this lab we are going to see a precipitation reaction. This is a reaction where two soluble salts Sodium Carbonate and Calcium Chloride are added together and the result is the precipitation
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Introductory Biology 1 Biology 1003 Fall Term 2011 Lab Number: 3 Title: Cell Energetics: Enzyme Role in Biological Reactions Name: Brandon Moore Student Number: 100819124 Lab day and time: Wednesday pm Date: Wednesday November 23‚ 2011 Introduction Enzymes are a key aspect in our everyday life and are a key to sustaining life. They are biological catalysts that help speed up the rate of reactions. They do this by lowering the activation energy of chemical reactions (Biology
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Lost in the Desert Question 1. Given the conditions‚ what should Henry do to try to save Mark? He must decide very quickly. Mark has very little time left and may not survive the trip by helicopter to the hospital. What has caused Mark’s weakness‚ nausea‚ disorientation‚ headache‚ and low blood pressure? Why isn’t he sweating? Henry can do two things to immediately help Mark and his current physical condition. First‚ Henry should put clothing on Mark. Although Mark may
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The Microscope Lab Brandy Talley PRCC Biology Lab Online June 13‚ 2013 Purpose: The purpose of this lab is to learn about different types of microscopes that we use today‚ learn the parts of the microscope‚ and how to properly use a microscope by exploring various slides. Materials: *Microscope *Letter “e” slide *Onion root slide *Bacterial capsule slide *Cheek smear slide Lab Notes: 1.What is the difference between a compound
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them 1‚ 2‚ 3‚ and 4. Fill dish 1 about 2/3 full with distilled water. Fill the other 3 about 2/3 full with 0.2% NaHCO3 solution. Set these aside for later. 2. Pour about 100 ml of 0.2% NaHCO3 solution into a flask with a side arm. 3. Get three or four spinach leaves and cut 40-50 disks with a cork borer. Do not include the large veins in the disks that you make. Stack the leaves so you can cut through them all and cut 3 or 4 disks at once. Use a glass rod or a straw to push the disks out of the
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Arielle Fisher GFP Lab November 16‚ 2011 Figure 1 A. B. C. D. Figure 1. Confocal images at 400x magnification of HeLa cells to locate GFP activity. HeLa cells were (A) tagged with Green Fluorescent Protein (GFP) (B) labeled with GFP and 14.13 µl Dexamethasone (C) tagged with GFP fused to the glucocorticoid binding
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