INTRODUCTION COSMETICS What is a cosmetic? The literal meaning of cosmetics as defined by The Oxford English Dictionary is “Having power to adorn‚ embellish or beautify (esp. the complexion)”. What we learn from this definition is that: cosmetics are superficial rather than therapeutic agents. Their work is to beautify‚ promote attractiveness‚ cleanse‚ or alter the appearance without affecting the body’s structure. Cosmetics include a huge range of products such as Lotions Skin creams Face
Premium Human skin color Cosmetics Human skin
CHEMISTRY REVISION GUIDE for IGCSE Coordinated Science This revision guide is designed to help you study for the chemistry part of the IGCSE Coordinated Science course. The guide contains everything that the syllabus says you need you need to know‚ and nothing extra. The material that is only covered in the supplementary part of the course (which can be ignored by core candidates) is highlighted in dashed boxes: Some very useful websites to help you further your understanding include: •http://www
Premium Oxygen Ammonia Oxide
IGCSE Chemistry 2012 exam revision notes by Samuel Lees Contents: 1. The particulate nature of matter 2. Experimental techniques 2.1 Measurement 2.2 (a) Criteria of purity 2.2 (b) Methods of purification 3. Atoms‚ elements and compounds 4.1 Atomic structure and the Periodic Table 4.2 Bonding the structure of matter 3.2 (a) Ions and ionic bonds 3.2 (b) Molecules and covalent bonds 3.2 (c) Macromolecules 3.2 (d) Metallic bonding 3 Stoichiometry 4
Premium Oxygen Carbon dioxide
National Institute of Geological Sciences Laboratory in Principles of Geology Geology 11.1 Laboratory Manual Name: _____________________ Student #: ___________________ Section: ____________________ Copyright © 2003 National Institute of Geological Sciences. All rights reserved. National Institute of Geological Sciences Laboratory in Principles of Geology Representing the Surface of the Earth Objectives To be able to interpret the data represented on a map To be able to identify
Premium Crystal Mineral Topography
9.5 – Industrial Chemistry (Option): Δ. Construct word and balanced formulae equations of all chemical reactions as they are encountered in this module: The EQUILIBRIUM Constant: For the basic reversible reaction‚ depicted as: aA + bB cC + dD; Uses of SULFURIC ACID: Fertiliser Production: Creating ammonium sulfate: sulfuric acid + ammonia ammonium sulfate H2SO4 (aq) + 2NH3 (aq) (NH4)2SO4 (aq) Dehydrating Agent: Dehydration of ethanol: ethanol ethylene + water C2H5OH (l) C2H4 (g) + H2O (l) Dehydration
Premium Chlorine Sulfuric acid Sulfur
IGCSE PRE-AICE CHEMISTRY 0620 OFFICIAL STUDY GUIDE Notes: To avoid any confusion concerning the symbol for litre‚ dm3 will be used in place of l or litre.Valence electrons are known as valency electrons for this test. Nature of Matter The states of matter are solid‚ liquid‚ and gas‚ in respective order of kinetic energy. State of Matter | Definite Volume | Definite Shape | Solid | Yes | Yes | Liquid | Yes | No | Gas | No | No | Diffusion:
Premium Atom Metal Chemical bond
Rainbow Troops – Detonation/ Reconstruction Chapter 31 (319)– In chapter 31‚ Lintang won the Academic challenge trophy and it went into the trophy cabinet next to the Mahar’s carnival trophy. Pak Harfan passed away after a substantial amount of teaching and the whole school wept. The outsider can be classified as someone who isn’t recognised and one who is just like the common rabble. As seen with Pak Harfan‚ he was a great man but in the eyes of the government‚ he was nothing but a
Premium United States bankruptcy law Bankruptcy in the United States School
Freshman Year Semester 1 Exam Study Honors Earth Science: Chapter 1: Branches of earth science Astronomy - study of objects beyond earths atmosphere Meteorology - study of air that surrounds the earth~ how air interacts us give us weather Geology- study of the materials that make up the earth and the processes that form and change those materials -4.6 billion Oceanography- study of earths oceans 3/4 Of earths surface * subspecialties are climatology‚ ecology‚ paleontology
Premium Earth Igneous rock Plate tectonics
1. Hydrogen Name: Hydrogen Atomic number: 1 Atomic Weight: 1.00794 grams/mole Standard state: gas at 198 K Hydrogen is the lightest Hydrogen is the lightest element. It is by far the most abundant element in the universe and makes up above 90% of Universe by weight. Hydrogen as water (H2O) is absolutely essential to life and it is present in all organic compounds. Hydrogen is lightest gas. Hydrogen gas was used in lighter-than-air balloons for transport but is far too dangerous because
Premium Metal Periodic table Chemical element
THE MACROECONOMIC UNCERTAINTY IN THE OIL AND GAS EQUIPMENT SERVICE INDUSTRY We explore how the macroeconomic fluctuation can really affect the performance of a company. We analyze the companies of the oil and gas equipment service industry: FMC Technologies‚ NOV‚ and Schlumberger. We use the MUST Analysis in order to discover what were the macroeconomic variables that really affects our companies’ performance‚ the magnitude‚ and the direction of the variables with the performance. The data sources
Premium Inflation United States dollar Currency