Chemistry Key Stage 3

Contents

Working Scientifically

Scientific Enquiry

• Hypothesis
• Scientific Theory
• Investigation
• Experiment
• Variable
  • Independent Variable
  • Dependent Variable
  • Control
• Fair Test
• Diagram
• Method
• Observations
• Results
  • Table of Results
• Repeats
• Secondary Data
• Conclusion
• Prediction
• Evaluation
• Evidence

Data Handling

• Units
• Unit Prefixes
  • Kilo
  • Centi
  • Milli
  • Micro
• Converting Units
• Table of Results
• Experimental Errors
  • Human Error
  • Random Error
• Anomaly
• Mean Average

Graphs

• Bar Chart
• Line Graph
• Scatter Graph
  • Line of Best Fit
  • Correlation
    • Negative Correlation
    • Positive Correlation

Quantities and Units

• Mass
  • Kilogram
  • Grams
• Volume
  • Metres Cubed
  • Centimetres Cubed
  • Litres
  • Millilitres
• Time
  • Seconds
  • Minutes
• Distance
  • Kilometres
  • Metres
  • Centimetres
  • Millimetres
  • Micrometres
• Temperature
  • Degrees Celsius
• Energy
  • Joule
• Concentration
  • Molarity

Equipment

Measuring Equipment

• Measuring Cylinder
• Pipette
• Syringe
• Ruler
• Measuring Scale
• Stopwatch
• Thermometer

Observation Equipment

• Magnifying Glass
• Microscope

Experimental Equipment

• Bottle
• Bottle and Dropper
• Indicator
• Incubator
• Water Bath
• U-Shaped Tube
• Delivery Tube
• Test Tube
• Boiling Tube
• Beaker
• Conical Flask
• Bung
• Buffer Solution
• Tweezers
• Spotting Tile
• Heatproof Mat
• Tripod
• Gauze
• Bunsen Burner
• Evaporating Dish
• Crucible
• Mortar and Pestle
• Tongs
• Test Tube Holder

Hazards

• Toxic
• Flammable
• Harmful
• Irritant
• Corrosive
• Long Term Health Risk
• Dangerous to the Environment
• Explosive
• Oxidising Agent
• Compressed Gas

The Particulate Nature of Matter

Particle Model

• Solid
• Liquid
• Gas
• Gas Pressure
• 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
• Conservation of Mass

Pure and Impure Substances

• Pure
• Mixture
• Solution
  • Dissolve
  • Solvent
  • Solute
  • Soluble
  • Insoluble
• Diffusion

Separating Mixtures

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

Chemical Reactions

Representing Chemical Reactions

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

Acids and Bases

• Acid
  • Hydrochloric Acid
  • Sulphuric Acid
  • Nitric Acid
• Base
  • Metal Oxides
  • Metal Carbonates
  • Metal Hydroxides
  • Alkalis
• pH Scale

Indicators

• Litmus Paper
• Red Cabbage Indicator
• Universal Indicator
• Phenolphthalein
• Methyl Orange
• Bromothymol Blue

Reactions of Acids

• Acid + Metal → Metal Salt + Hydrogen
• Acid + Metal Oxide → Metal Salt + Water
• Acid + Metal Hydroxide → Metal Salt + Water
• Acid + Metal Carbonate → Metal Salt + Carbon Dioxide + Water

Catalyst

Examples of Chemical Reactions

• Combustion
• Thermal Decomposition
• Oxidation
• Displacement Reaction
• Neutralisation

Energetics

• Energy and State Changes
• Exothermic
• Endothermic

The Periodic Table

• Chemical Symbol
  • Atomic Number
  • Atomic Mass
• Physical Property
• Chemical Property
• Mendeleev
• Period
  • Electron Shells
• Group
• Metals
• Non-metals
• Metal Oxides
• Non-metal Oxides

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