TABLE OF CONTENT S What is Chemistry 4 The Scientific Method 5 Measurement 8 Atoms and Elements 11 The Parts of an Atom 12 Elements 14 The Periodic Table 16 Elements Important to Life 19 Isotopes and Radioactive Elements 20 Molecules 24 Bonds 25 Chemical Formulas 28 Matter 29 Phases of Matter 29 Properties of Matter 31 Changes in Matter 38 Compounds Acids and Bases Mixtures and Solutions 40 Compounds 41 Acids and Bases 42 Mixtures 45 Solutions 46 Reactions 48 Chemical Reactions 48 Making and Breaking Bonds 49 Catalysts 49 Oxidation and Reduction 52 Releasing Energy 55 Explosions 56 People Who Study Chemistry 59 Types of Chemists 59 Women in Chemistry 62
What Is Chemistry Y CHEMISTRY Chemistry is the study of substances and the changes that happen to them Substances are things like food clothes and medicine Chemistry is very important Plastic bags and shoes with rubber soles would not exist without chemistry Fuels for cars airplanes and rockets would not exist without chemistry Chemical reactions or changes inside the human body are important They make it possible for people to think eat and breathe Chemistry is everywhere Chemicals in fertilizer helped these fruits and vegetables grow Without chemistry we would not have these clothes to keep us warm Enzymes in the girls stomachs will help them digest their food We know how our medicine works because of chemistry R T S I M E H C S I T A H W 4
Science Encyclopedia Chemistry
Rourke's World Of Science Encyclopedia teaches the essential concepts for elementary school science instruction.
About This Book
By: Nancy Harris
Illustrated by:
Published by: Rourke Educational Media (Unlimited)
