Chemistry Key Stage 3

Contents

The Particulate Nature of Matter

Particle Model

• Solid
• Liquid
• Gas
• Pressure in Gas
• Diffusion

State Changes

• Melting
• Freezing
• Evaporating
• Condensing
• Subliming
• Depositing

Atoms, Elements and Compounds

The Dalton Model

• Atom
• Element
• Molecule
• Compound
• Mixture

Basic Principles of Chemistry

• Chemical Symbols
• Chemical Formulae
• Chemical Reactions (rearranging atoms)
• Conservation of Mass

Pure and Impure Substances

• Pure Substance
• Mixture
• Solution
• Diffusion

Separating Mixtures

• Filtration
• Evaporation
• Distillation
• Chromatography
• Identifying Pure Substances

Chemical Reactions

Representing Chemical Reactions

• Chemical Formula
• Chemical Equation
  • Word Equation
  • Balanced Symbol Equation

Examples of Chemical Reactions

• Combustion
• Thermal Decomposition
• Oxidation
• Displacement Reaction

Energetics

• Energy and Stage Changes
• Exothermic Reaction
• Endothermic Reaction

The Periodic Table

• Physical Properties of Elements
• Chemical Properties of Elements
• Mendeleev
• Period
• Group (patterns in reactivity)
• Metals
• Non-metals
• Metal Oxides (acidity)
• Non-metal Oxides (acidity)

Materials

Reactivity Series

Extraction of Metals

• Native
• Ore
• Smelting
• Electrolysis

Properties of non-metal materials

• Ceramics
• Polymers
• Composite Materials

The Earth and its Atmosphere

Composition of the Earth

Structure of the Earth

Rock Cycle

• Igneous
• Sedimentary
• Metamorphic

Earth's Resources

• Recycling
• Carbon Cycle
• Earth's Atmosphere
• Climate Change