GCSEScienceWJECScience (Double Award)ChemistryChemical Substances, Reactions & Essential Resources

Chemical Substances, Reactions & Essential Resources (WJEC GCSE Science (Double Award))

Get ready for your WJEC GCSE Science (Double Award) exams with our revision resources. Find everything you need to revise this topic, so you can go into your exam confident and prepared. Teachers and examiners write all our resources, and they’re designed specifically for each exam board. We regularly update them to match the latest syllabus, so you’ll only revise the most accurate, up-to-date information. Explore the collection below to get started.

The Nature of Substances & Chemical Reactions

  1. Elements & Compounds
  2. Chemical Symbols & Formulae
  3. Relative Atomic Mass & Relative Molecular Mass
  4. Percentage Composition
  5. Separating Mixtures
  6. Conservation of Mass
  7. Evidence of a Chemical Reaction
  8. Chemical Equations
  9. Percentage Yield
  10. Reacting Masses
  11. The Avogadro Constant & the Mole

Atomic Structure & The Periodic Table

  1. Atomic Structure
  2. Atomic Number, Mass Number & Isotopes
  3. The Periodic Table
  4. Electronic Structure
  5. Trends in the Periodic Table
  6. Reactions of Alkali Metals
  7. Testing for Hydrogen Gas
  8. Reactions of Halogens
  9. Group 0 Gases
  10. Testing Cations & Anions

Water

  1. Composition of Water
  2. Sustainable Water Supply
  3. Water Treatment
  4. Fluoridation of Water
  5. Desalination
  6. Distillation
  7. Solubility Curves
  8. Hard Water
  9. Water Softening
  10. Benefits & Drawbacks of Hard Water
  11. Determining Hardness in Water

The Ever-Changing Earth

  1. Structure of the Earth
  2. Plate Tectonics
  3. Plate Boundaries
  4. The Atmosphere
  5. Carbon Dioxide & Sulfur Dioxide Emissions
  6. Global Warming & Acid Rain
  7. Testing for Oxygen & Carbon Dioxide

Rate Of Chemical Change

  1. Determining the Rate of Reaction
  2. Factors Affecting Rates
  3. Hydrochloric Acid & Sodium Thiosulfate
  4. Particle Theory
  5. Catalysts
  6. Rate of Reaction Using Gas Collection

The Nature of Substances & Chemical Reactions

  1. Exam Questions

Atomic Structure & The Periodic Table

  1. Exam Questions

Water

  1. Exam Questions

The Ever-Changing Earth

  1. Exam Questions

Rate Of Chemical Change

  1. Exam Questions
  1. The Nature of Substances & Chemical Reactions
  2. Atomic Structure & The Periodic Table
  3. Water
  4. The Ever-Changing Earth
  5. Rate Of Chemical Change
WJEC GCSE Science (Double Award) Past Papers