into a petri-dish and the cylinder removed and blotted with filter paper‚ throwing the liquid away from the petri-dish after each cylinder was removed. 7) The length and texture of each potato cylinder was recorded in a table. Discussion: In the experiment‚ I believe the phenomenon to take place is osmosis. Osmosis is the movement/diffusion of water molecules through a selectively permeable membrane from an area of high concentration of water molecules (high water potential) to an area of a low concentration
Premium Osmosis Cell wall Sodium chloride
SUMMARY The aim is to observe distillation process of ethanol-water solution and to measure the alcohol content after process in this experiment. 500 ml of solution with an alcohol content of 32% (v/v) is used for this experiment. Temperature values are recorded for every 10 ml alcohol obtained in the flask. The process is repeated in our experiment and for the first process‚ the data collection process continues until the distillate reaches to 200 ml. The concentration of alcohol is measured for
Premium Distillation
George Elton Mayo: The Hawthorne Experiment George Elton Mayo: The Hawthorne Experiment Purpose The purpose of this paper is to explore the management theory of George Elton Mayo and how it applies to the current status of management in business today. This will include the examination of the behavioral aspect of management by studying Elton Mayo ’s Hawthorne Experiment and its conclusions. Introduction George Elton Mayo was born the second child of an
Premium Maslow's hierarchy of needs Motivation Hawthorne effect
Title: An investigation into the impact of group pressure on an individual’s estimate of the amount of beads in a pot (ginger granules in a jar). IV = Group/Individual DV = Individual beads estimate Abstract This experiment investigated the impact of group pressure on the individual. The hypothesis is that group pressure does indeed impact on the individual and in this case the individual’s estimate of the number of ginger granules in a jar. Participants were asked to make a judgement of
Premium Conformity Asch conformity experiments Mathematics
Experiment 4A – Counting Atoms in a Chemical Reaction Purpose: The purpose of this lab is to create an experiment where zinc reacts with hydrochloric acid in order to find out the number of moles and atoms of zinc reacted. This can be accomplished by weighing the sample before and after the reaction with hydrochloric acid. Data: Material Mass in grams (g) Initial mass of dry beaker 49.37 Initial mass of dry beaker + zinc 51.03 Initial mass of zinc 1.66 Final mass
Premium Hydrogen
In order to find the connection between the level of education and income‚ research methods need to established. To find the relationship between the two‚ I would use the methods of survey and experiments. Survey method allows a collection of a specific population and from that populations a sample population can be extracted to represent the whole. Given a random survey preformed at a local festival would give the general population a chance to participate since all sorts of people attend community
Premium Education High school School
SL Sam Edgecombe 2012.04.22 D‚ DCP‚ CE Paper Helicopter Experiment Introduction: The paper helicopter experiment involves designing a paper helicopter and by changing a certain variable acquire data for a selected variable. The essential part in this practical is to plan the experiment in detail in order to obtain substantial data. Firstly we have to identify our controlled variables which will be kept constant throughout the experiment. By carrying out this practical it is ideal that students
Premium Mass
3. Why don’t the terms depolarization and action potential mean the same thing? The terms depolarization and action potential differ because are excitable cells that communicate by transmitting electrical impulses that are capable of producing rapid electrical signals and depolarization in the interior surface of the membrane which becomes less negative and the exterior surface becomes less positive. Additionally‚ when depolarization reaches a certain threshold‚ an action potential is initiated
Premium Action potential Neuron Nervous system
Cardiovascular System: Blood Laszlo Vass‚ Ed.D. Version 42-0007-00-01 Purpose Explain why you did this lab and what if any safety precautions needed to be followed. For this lab I had to prick my finger‚ then with the bleach solution I had to dab it and then carefully drop the blood on the slide. Once I was finished I had to take the second slide and smear the blood. I had to let the slide dry. Then I had to prick my finger again and make 3 more slides. Then I had to mix the chemical
Premium Blood Blood type Immune system
The Perspiration Workout Unit of the ‘Passive Anaerobic and Aerobic Exercise Assist System for the Inactive and Sedentary Population’ is essentially an infrared dry sauna‚ the heaters produce infrared rays that superficially heat skin and other exposed surfaces but not the air.[7]‚ which is absorbed by the surface of the skin.[1] A study of patients with rheumatoid arthritis and ankylosing spondylitis showed a reduction in pain‚ stiffness and fatigue during infrared sauna therapy. [2] According to
Premium Nutrition Obesity Physical exercise