Lab Report Density Name: Period: Problem How do you calculate Density? What units did you use for volume‚ mass‚ and density? When the cubes are placed in water which one will sink 1st? What is the ranking of the cubes lightest (1) to heaviest (10)? Is it true that the cube with the most mass will have the most density? Hypothesis I think the 1st cube was aluminum I think the 2nd cube was steel I think the 3rd cube was brass I think the 4th cube was copper I think the 5th
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of this experiment was to become familiar with the electrocardiograph to help us determine the electrical activity of the heart. As well as‚ to observe how exercise and different body positions(conditions) can affect the activity of the heart. Introduction Trained professionals can look at the EKG tracing and determine if the heart is normal or if the heart is abnormal. “An ECG records the electrical activity of the heart. The heart produces tiny electrical impulses which spread through the heart
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This lab experiment investigates the effect of listening to different types of music on one’s pulse. The experiment relates the circulatory system to the pulse as it measures how quickly the heart contracts and releases blood. Pulse is measured in beats per minute (bpm). One’s pulse is loudest near the heart‚ because there is more pressure closer to the heart. In contrast‚ one’s pulse is quieter the further away it is measured from the heart‚ because there is less pressure the further the distance
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Introduction: Photosynthesis is a process to which some autotrophs such as plants produce their own food. It has two stages or reactions light-dependent and light-dependent reactions. The light dependent reactions are the first stage‚ where energy from sunlight is captures in Photosystem 2 and then 1‚ the electrons generated in Photosystem 1 then moves along the electron transport chain. The moving of electrons causes a hydrogen ion gradient that is used in the final step to produce ATP‚ by the
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Abstract The primary purpose of this laboratory experiment was to record the effects that light exercise has on different cardiovascular functions such as mean blood pressure‚ cardiac out put‚ and total peripheral resistance by comparing both of the numerical values before and after exercise. Prior to exercise‚ the mean blood pressure (MBP) was 86.8 mmHg with a standard deviation of 7.4. After exercise‚ MBP was 96.3 mmHg with a standard deviation of 9.2. The cardiac output (CO) was 5.3 Liters/minute
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Extraction and Sublimation Experiment #4 10/02/13 Introduction Caffeine is a stimulant found in tea‚ coffee‚ cocoa‚ OTC medication‚ and cola drinks.It stimulates the brain and the central nervous system‚ so that a person feels less tired and more alert. The purpose of this lab is to determine the amount of caffeine in tea. The major component of tea is cellulose which is a polymer of glucose. Materials Lab coat Goggles Graduated cylinder 1 tea bag (1.615g) 50 mL beaker
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United States. Various measures of adiposity (body fat) were shown‚ in some previous studies‚ to have a relationship with increased cardiovascular disease and death. Although multiple measures of body fat were used‚ none of these measures measured cardiorespiratory fitness. The purpose of this article was to determine the relationship between cardiorespiratory fitness‚ various measures of adiposity‚ and all-cause mortality in women. Whether these results remained true when applied to a larger group
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Grade 11 physics: SPH3U1-01 | Physics Lab Report | Specific Heat Capacity of Brass | | Jin Jin Shi | 2012/12/6 | Instructor: Mr. Nailer | I. Introduction The amount of heat required to raise the temperature of a solid body depends on its change in temperature (ΔT)‚ its mass (m)‚ and an intrinsic characteristic of the material forming the body called specific heat (cp). The heat is calculated from the equation II. Purpose The purpose of this laboratory is to determine
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Biology 160 Lab Manual Tacoma Community College Last update 06/03/2013 This page left intentionally blank Table of Contents Table of Contents i Laboratory 1: Principles of the Scientific Method 4 In-Lab Report Sheet 12 This page has been left intentionally blank 27 Laboratory 2: Scientific Methodology & Enzyme Activity 28 In-Lab Report Sheet 28 Objectives 33 Introduction 33 Parts of the Swift M5 Microscope 33
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Osmosis Rates in Artificial Cells Daniel George Department of Biology Grand Valley State University 1 Campus Drive Allendale‚ MI 49401 georged@mail.gvsu.edu Abstract The lab for this paper was conducted for the topic of osmosis‚ the movement of water from high to low concentration. Five artificial cells were created‚ each being filled with different concentrated solutions of sucrose. These artificial cells were placed in hypertonic‚ hypotonic‚ or isotonic solutions for a period of 90
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