solutionOrangeNo changeDried upNo change 4.sucrose solutionNo changeNo changeDried upNo change 5.starch solutionNo changeDark blue-blackDried upNo change 6.distilled waterNo change (Clear blue)No change (Clear yellow)Dried upNo change Investigation 1A: Testing for Macromolecules Discussion: By observing the table above‚ we could see that Benedict’s test was for reducing sugars‚ iodine test was for the presence of starch‚ filter paper was for the presence of fatty acids‚ and the Biuret test was for amino
Free Glucose Carbohydrate
BBI20 Assignment#5 Opinion Essay on Inventions 1st March 2011 In my opinion‚ the most important invention of all time in the history of human civilization and enterprise is the internet. Why the internet? Simply because I believe this invention has made the world a better place. In almost everything we do‚ we need the Internet. Whether it is to look for a job‚ research for a project or even find love. The Internet is a dominant factor that plays an important role in our lives. We just simply cannot
Premium World Wide Web History of the Internet Website
an acceptance test for the specification of materials. The teaching and learning of tensile testing was based on laboratory experiments used in the Mechanical Engineering Laboratory (CM180) at the City University. The experiment looked at how the microstructure of a material can affect its properties. It also introduced tensile testing and stress-strain curves. It is done by using of a tensile testing machine. Three basic types of materials were used in the experiment. They were a) mild steel
Premium Tensile strength Elasticity Materials science
tests for years. Testing in the schools has swelled and mutated and threatens to swallow our school systems whole. Standardized tests in the public school system have become biased and they are costly to school systems. In this presentation I will go over some of the cons of standardized testing. One is that the tests given to our students today are biased to our children that certain questions can only be answered by particular groups of students. The second con of standardized testing is that these
Premium Standardized test Standardized tests Psychometrics
Drug Testing before receiving financial aid from the government to support your family. Lately the media has been following the legislatures and their bills involving mandatory drug tests before receiving government assistance. “According to the Survey of Income and Program Participation conducted by the U.S. Census‚ well over 100 million Americans are enrolled in at least one welfare program run by the federal government. Many are enrolled in more than one. That is about a third of the entire
Premium Welfare Drug test Drug addiction
Aim: The objective is to identify specific chemical substances within a cell and to be able to verify the presence or absence of each one in a cell or food substance for future testing. Hypothesis: The identification of each biomolecular chemical substance should be verified successfully‚ as well as determining if it is present or absent in the cell(s). Theoretical Base: A biomolecule is a substance that naturally occurs in living organisms. Biomolecules consist primarily of carbon and hydrogen
Premium Protein Metabolism Amino acid
Tensile Testing Laboratory By Stephan Favilla 0723668 ME 354 AC Date of Lab Report Submission: Date of Lab Exercise: February 11th 2010 January 28th 2010 1 Executive Summary Tensile tests are fundamental for understanding properties of different materials‚ and how they will behave under load. This lab tested four different materials‚ including A-36 hot rolled steel‚ 6061-T6 Aluminum‚ polycarbonate‚ and polymethylmethacrylate (PMMA). Each material was tested three times using an Instron
Premium Tensile strength Elasticity
Pros and Cons of Nuclear Energy Debates and controversial issues are what keep countries all over the world connected. Ideas that were argued upon one hundred years ago are still argued upon today. One of these ideas is nuclear energy- should we or should we not use it at such a rate? Before an opinion can be reached‚ you must first weigh the pros and cons of this topic. Nuclear energy can be environmentally unsafe and can also be threatening‚ but at the same time it can benefit the progress and
Premium Cold War Nuclear power Nuclear fission
significant environmental damage. Let ’s face it. We don ’t want safe nuclear power plants. We want NO nuclear power plants —A spokesman for the Government Accountability Project‚ an offshoot of the Institute for Policy Studies‚ The American Spectator‚ Vol 18‚ No. 11‚ Nov. 1965The Atomic Energy Commission which was created in 1953 wanted to initiate nuclear power‚ to push towards nuclear weapons and to make plans to use peaceful nuclear explosives for civil engineering projects.
Premium Uranium Nuclear fission Nuclear power
English I CPE/period 9 15 January 2013 Standardized testing should not be required to graduate high school Sitting in a classroom for forty-five minutes feels long and stressful. During the standardized tests students have to sit in a classroom for hours at a time‚ knowing that their future dreams of being a doctor‚ teacher‚ or lawyer could come to an end if they mess up one exam. Standardized tests should not be required for students to graduate high school. They cause students
Premium Standardized test High school Psychometrics