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The big picture

The big picture

Concept map showing how matter links to atoms, periodic table, bonding, structures, properties, rate and energy changes

Chemistry is the study of matter and how it changes. Matter has mass and takes up space, and ordinary matter is made from atoms.

Key ideas Lesson

  1. GCSE
  2. /Combined Science
  3. /Key ideas

Step-by-step lessons on AQA GCSE Combined Science Key ideas, covering Key ideas. Each one builds up to exam-style questions.