Grade 9 · Biology · Semester 1 · 2026–2027

Exploring the natural world, from single cells to global ecosystems.

Follow along with our journey through life science—from understanding scientific inquiry to exploring energy flow, nutrient cycles, terrestrial biomes, and aquatic ecosystems.

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

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

Key Milestones & Breaks

Important dates to keep track of during Semester 1.

Holiday

National Day

Week 5 · Sep 20

National Vacation on Sept 23 & 24.

Break

Autumn Break

Week 14 · Nov 22

A mid-semester break to rest and refresh.

Checkpoint

Revision Week

Week 18 · Dec 20

Review of all core concepts from Modules 1, 2, and 3.

Assessment

Semester 1 Exams

Weeks 19–20 · Dec 27–Jan 3

Cumulative semester examinations start.

W1
Aug 23, 2026
Lesson 1: The science of life
Module 1: The study of life
  • Introduction to Biology and characteristics of living things

Establishes the foundational principles of life science.

W2
Aug 30, 2026
Lesson 1: The science of life
Module 1: The study of life
  • Exploring biological structures and functions

Deepens understanding of the structural organization of organisms.

W3
Sep 6, 2026
Lesson 2: The nature of science
Module 1: The study of life
  • Scientific methods, hypotheses, and experimental design

Teaches how scientists investigate and validate biological phenomena.

W4
Sep 13, 2026
Lesson 2: The nature of science
Module 1: The study of life
  • Data analysis, lab safety, and scientific ethics

Builds essential analytical and scientific inquiry skills.

W5
Sep 20, 2026
Lesson 1: Organisms and their relationships
Module 2: Principles of Ecology
National Vacation (23-24)
  • Introduction to Ecology and organism interactions

Transitions into understanding ecological systems and organisms.

W6
Sep 27, 2026
Lesson 1: Organisms and their relationships
Module 2: Principles of Ecology
  • Symbiosis, competition, and habitat vs. niche

Examines how species coexist within an ecosystem.

W7
Oct 4, 2026
Lesson 2: Flow of energy in an ecosystem
Module 2: Principles of Ecology
  • Autotrophs, heterotrophs, and trophic levels

Explains how energy travels through biological communities.

W8
Oct 11, 2026
Lesson 2: Flow of energy in an ecosystem
Module 2: Principles of Ecology
  • Food chains, food webs, and ecological pyramids

Visualizes complex feeding relationships and energy loss.

W9
Oct 18, 2026
Lesson 3: Cycling of matter
Module 2: Principles of Ecology
  • Biogeochemical cycles: Water and Carbon cycles

Shows how essential nutrients recycle through ecosystems.

W10
Oct 25, 2026
Lesson 3: Cycling of matter
Module 3: Communities, biomes and ecosystems
  • Nitrogen and Phosphorus cycles

Completes the study of critical elemental cycles.

W11
Nov 1, 2026
Lesson 1: Community ecology
Module 3: Communities, biomes and ecosystems
  • Primary and secondary ecological succession

Explores how ecosystems respond to changes and disturbances.

W12
Nov 8, 2026
Lesson 2: Terrestrial biomes
Module 3: Communities, biomes and ecosystems
  • Overview of world climate zones and biomes

Connects climate factors to global plant and animal distributions.

W13
Nov 15, 2026
Lesson 2: Terrestrial biomes
Module 3: Communities, biomes and ecosystems
  • In-depth look at major biomes (Tundra, Forests, Deserts)

Examines specific adaptations to varying ecosystems.

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

A full week to recharge.

W15
Nov 29, 2026
Lesson 2: Terrestrial biomes
Module 3: Communities, biomes and ecosystems
  • Grasslands, Savannas, and human impacts on biomes

Understands threats to global terrestrial environments.

W16
Dec 6, 2026
Lesson 3: Aquatic ecosystems
Module 3: Communities, biomes and ecosystems
  • Freshwater ecosystems: Rivers, streams, lakes, and ponds

Investigates inland water ecosystems and biodiversity.

W17
Dec 13, 2026
Lesson 3: Aquatic ecosystems
Module 3: Communities, biomes and ecosystems
  • Transitional and Marine ecosystems (Ocean zones, reefs)

Explores marine ecosystems and ocean dynamics.

W18
Dec 20, 2026
Revision Week
Revision
Revision
  • Comprehensive review of Modules 1–3

Prepares students for upcoming final examinations.

W19
Dec 27, 2026
Semester 1 Exams Start
Finals
Exams Start
  • Semester 1 final assessments begin

Evaluates mastery of semester content.

W20
Jan 3, 2027
Semester 1 Exams
Finals
Exams
  • Final exams continue and wrap up

Concludes Semester 1.