Topic 1 · p. 2 · Free
Topic Notes · Easy summaries with diagrams
Chapter 1 — Chapter 1 — States of Matter and Phase Changes
0 of 8 steps done ✓ (7 topics + Exercise)
Topic 1 of 7
📘Easy summary
Chemistry is the branch of science which deals with the properties, composition and structure of substances. It also deals with physical and chemical changes in matter and the laws or principles which govern these changes.
⭐Key points
- Composition = percentages of elements/compounds in a sample.
- Structure = arrangement of atoms in matter.
- Changes may absorb or evolve energy.
🔬Diagram
🌿Real-life example
Finding the percentage of iron in an ore is a question of composition.
💡Exam tip
- Learn the definition word for word — it is a common short question.
✅Quick check
1. Arrangement of atoms in matter is called its:
2. Chemistry also deals with laws that govern:
Practice this chapter
Lock it in with flashcards and exam-style MCQs.