how small this is, an atom has a diameter of about 0.1nm and the nucleus of an atom is much smaller, about 0.00001nm. Nanotechnology is the science that is used to rearrange molecules on the atomic level so that each atom is essentially put in the most efficient place. This is best clarified by Dr. Ralph Merkle, Ph. D., of the Georgia Institute of Technology in this way: “Manufactured products are made from atoms, and the properties of those products depend on how those atoms are arranged. If we
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CHEM1005 ASSIGNMENT #1 ANDRE DEOSARAN Atom name symbol electron configuration 1) Copper Cu 1s2, 2s2, 2p6, 3s2, 3p6, 3d10, 4s1 Chromium Cr 1s2, 2s2, 2p6, 3s2, 3p6, 3d5, 4s1 Chlorine Cl 1s2, 2s2, 2p6, 3s2, 3p5 Neon Ne 1s2, 2s2, 2p6 Potassium k
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Answers to Conceptual Integrated Science End-of-Chapter Questions Chapter 1: About Science Answers to Chapter 1 Review Questions 1 The era of modern science in the 16th century was launched when Galileo Galilei revived the Copernican view of the heliocentric universe, using experiments to study nature’s behavior. 2 In Conceptual Integrated Science, we believe that focusing on math too early is a poor substitute forconcepts. 3 We mean that it must be capable of being proved wrong. 4 Nonscientific
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* To provide materials for growth and repair of tissues * To help fight disease and keep our bodies healthy. Minerals All the foods you have read about so far are made from just five chemical elements: carbon, hydrogen, oxygen, nitrogen and sulphur. Our bodies contain many other elements which we get from our food. Some are present in large amounts in the body, for example calcium, which we used for making teeth and bones. Others are present in much smaller amounts, but still have essential
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is made mostly of a protein called keratin, which is also present in nails. In hair, keratin molecules are arranged in straight bundles. These bundles are held together by disulphide bonds (-S-S-), which give strength to the hair. Disulphide bonds are made by the amino acid called cysteine. The cysteine of one keratin molecule forms a disulphide bond with the cysteine of the neighbouring keratin molecule. The more disulphide bonds there are in a strand of hair, the straighter it is. Ammonium thioglycolate:
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amongst atoms and in protein macromolecules; these bonds connect Amino acids to another ultimately creating a Polypeptide chain. A polypeptide chain includes three or more Amino acids linked together by this chemical bond. Amino acids ultimately determine the shape and three dimensional configurations of Protein, are organic compounds and have a two carbon bond comprising of one carboxyl group and one amino group. A carboxyl group (COOH) consists of a carbon atom, two oxygen atoms, Hydrogen atom and
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Biology 119, Spring 2015 Review sheet for Exam 1 The exam is worth 100 points total. It will consist of approximately 47 multiple-choice questions worth 2 point each and 3-4 short essay questions. Bring a scantron and pencil to the exam. The best way to study is to review the posted lecture notes. I suggest printing of a blank copy and filling them in referring to your book and notes as little as possible. Continue this process until you can fill them in without assistance. Exam 1 will cover
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Science Content Standards A Message from the State Board of Education and the State Superintendent of Public Instruction. In 1998 California adopted academically rigorous content standards in science. The adoption of standards in each core subject area marked a turning point in the education reform movement that began in 1983 with the report A Nation at Risk: The Imperative for Educational Reform, by the National Commission on Excellence in Education. Until then, the reform movement had focused
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Spectroscopy CONTENTS Introduction Physical Quantities measured What Is Spectroscopy Nature of light The Electromagnetic Spectrum General Types of Spectra Continuous Spectra Emission spectra Absorption Spectra Types of Spectroscopy How Spectrometer work? Types of Spectroscopy Examples of Spectroscopy in Astronomy Probing the Formation of Stars in Colliding Galaxies in the universe. Uncovering the mystery of quasar Spectroscopy in Astronomy camp Stars like our own Sun Bibliography
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Year 11 Science Mentoring Task Booklet Things to remember when answering 6 mark exam questions: 1. 2. 3. 4. 5. 6. Try and remember everything you can about what the question is asking before you start answering it Make at least 6 points Write in full sentences starting with capital letters and ending with full stops Try and answer the question in around five minutes Check your answer to make sure you have not left anything out Remember to use key words when appropriate Things to remember
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