Grade 10 · Chemistry · Semester 1 · 2026–2027

Exploring the building blocks of matter and atomic structure.

Students trace the nature of matter, atomic models, unstable nuclei, and modern electron configurations. Interactive nodes chart progress across key topics, breaks, and milestone assessments.

Tap any point on the curve — or any week below — to view specific details.

The semester timeline — click any node to jump directly to that week's unit.
W1 W2 W3 W4 W5 W6 W7 W8 W9 W10 W11 W12 W13 W14 W15 W16 W17 W18 W19 W20

Key Milestones & Assessments

Important dates, breaks, and exam periods planned for Semester 1.

Break / Observance

National Vacation

Week 5 · Sep 20, 2026

National Vacation scheduled on September 23 & 24.

Break / Observance

Autumn Break

Week 14 · Nov 22, 2026

A full scheduled week off for mid-semester rest.

Checkpoint

Revision Week

Week 18 · Dec 20, 2026

Dedicated review week covering Modules 2, 3, and 4.

Checkpoint

Semester 1 Exams

Weeks 19–20 · Dec 27, 2026 – Jan 3, 2027

Comprehensive semester final exams.

W1
Aug 23, 2026
L.1 - Properties of Matter
Module 2: Matter - Properties and changes
  • Introduction to physical and chemical properties
  • States of matter and their characteristics

Establishes foundational knowledge of how matter is identified and classified.

W2
Aug 30, 2026
L.2 - Changes in Matter
Module 2: Matter - Properties and changes
  • Differentiating physical vs chemical changes
  • Conservation of Mass principles

Helps students understand processes altering composition vs appearance.

W3
Sep 6, 2026
L.3 - Elements and Compounds
Module 2: Matter - Properties and changes
  • Pure substances, chemical symbols, and formulas
  • Law of Definite and Multiple Proportions

Core foundation for understanding elemental building blocks.

W4
Sep 13, 2026
L.3 - Elements and Compounds (Cont.)
Module 2: Matter - Properties and changes
  • Further practice on compound separation & properties
  • Analyzing proportions in chemical combinations

Reinforces key analytical techniques for compound separation.

W5
Sep 20, 2026
L.4 - Mixture of Matter
Module 2: Matter - Properties and changes
National Vacation
  • Heterogeneous vs homogeneous mixtures
  • Separation techniques (filtration, distillation)

National Vacation on Sep 23 & 24.

W6
Sep 27, 2026
L.1 - Early Ideas About Matter
Module 3: The Structure of the Atom
  • Philosophical origins (Democritus vs Aristotle)
  • Dalton's Atomic Theory

Traces the historic progression of atomic discovery.

W7
Oct 4, 2026
L.2 - Defining the Atom
Module 3: The Structure of the Atom
  • Discovery of subatomic particles (electrons, protons, neutrons)
  • Thomson & Rutherford atomic models

Explains key experiments defining modern atomic structure.

W8
Oct 11, 2026
L.2 - Defining the Atom (Cont.)
Module 3: The Structure of the Atom
  • Rutherford's gold foil experiment review
  • Nuclear structure & atomic mass units

Deepens grasp of subatomic force and nuclear density.

W9
Oct 18, 2026
L.3 - How Atoms Differ
Module 3: The Structure of the Atom
  • Atomic numbers, mass numbers, and isotopes
  • Calculating average atomic mass

Vital mathematical skills for calculating isotopic abundance.

W10
Oct 25, 2026
L.4 - Unstable Nuclei & Radioactive Decay
Module 3: The Structure of the Atom
  • Radioactivity, radiation types (Alpha, Beta, Gamma)
  • Nuclear stability concepts

Explains spontaneous nuclear transformation and decay pathways.

W11
Nov 1, 2026
L.4 - Unstable Nuclei & Radioactive Decay (Cont.)
Module 3: The Structure of the Atom
  • Half-life calculations and applications
  • Nuclear equations balancing

Reinforces quantitative skills for measuring radioactive decay.

W12
Nov 8, 2026
L.1 - Light and Quantized Energy
Module 4: Electrons in Atoms
  • Wavelength, frequency, and electromagnetic spectrum
  • Planck's Constant and the photoelectric effect

Connects wave-particle duality of light to electronic structure.

W13
Nov 15, 2026
L.1 - Light and Quantized Energy (Cont.)
Module 4: Electrons in Atoms
  • Atomic emission spectra
  • Bohr's model of the hydrogen atom

Illustrates how quantized energy levels produce spectral emission lines.

W14
Nov 22, 2026
Autumn Break
Break · Autumn Break
Autumn Break
  • No classes scheduled

Mid-semester rest and reflection period.

W15
Nov 29, 2026
L.2 - Quantum Theory and the Atom
Module 4: Electrons in Atoms
  • Quantum Mechanical Model of the Atom
  • Atomic orbitals (s, p, d, f) and energy sublevels

Introduces modern probability-based atomic orbital models.

W16
Dec 6, 2026
L.2 - Quantum Theory and the Atom (Cont.)
Module 4: Electrons in Atoms
  • Principal quantum numbers and orbital shapes
  • Electron spatial distribution

Consolidates structural layout of atomic orbitals.

W17
Dec 13, 2026
L.3 - Electron Configuration
Module 4: Electrons in Atoms
  • Aufbau principle, Pauli exclusion principle, Hund's rule
  • Writing electron configurations & orbital diagrams

Essential skill for predicting chemical bonding and reactivity.

W18
Dec 20, 2026
Revision Week
Revision
Revision
  • Comprehensive review of Modules 2, 3, and 4
  • Exam preparation strategies and practice tests

Prepares students for upcoming comprehensive semester assessments.

W19
Dec 27, 2026
Semester 1 Exams Start
Final Exams
Final Exams
  • Semester 1 final assessment period begins

Evaluates overall understanding of Semester 1 chemistry concepts.

W20
Jan 3, 2027
Semester 1 Exams Continued
Final Exams
Final Exams
  • Final exam period concludes
  • Semester wrap-up

Closing period for Semester 1 evaluation.