Singapore · MOE Syllabus Outcomes
Secondary 2 Science
This course explores the complex interactions within physical and biological systems. Students investigate the nature of matter, the mechanics of human systems, and the impact of human activity on the global environment through evidence based inquiry.

01Atomic Structure and Chemical Bonding
Students delve into the subatomic world to understand how the arrangement of particles defines the identity and behavior of matter.
Exploration of protons, neutrons, and electrons and how their arrangement determines atomic identity.
Understanding how atomic number defines an element and how electrons occupy shells, influencing reactivity.
Investigation into how atoms gain or lose electrons to become charged ions and their resulting properties.
Exploring atoms of the same element with different numbers of neutrons and their applications.
Understanding the organization of elements based on their atomic number and recurring chemical properties.
Introduction to the concept of chemical reactions, identifying reactants and products, and observing evidence of chemical change.
Classifying simple chemical reactions such as combination, decomposition, and displacement reactions.
Understanding how atoms bond together to create the diverse substances found in the universe, including their nomenclature.

02Interactions within the Human Digestive System
A deep dive into the mechanical and chemical processes that transform food into energy and nutrients for the body.
Introduction to the main organs of the human digestive system and their sequential roles.
Distinguishing between the physical breakdown of food and the molecular changes driven by enzymes.
Studying the specific roles of enzymes in breaking down carbohydrates, proteins, and fats.
Examining the initial stages of digestion, including chewing, saliva production, and swallowing.
Investigating the role of gastric juices, stomach acid, and muscular contractions in breaking down food.
Examining how the small intestine, aided by accessory organs, facilitates nutrient breakdown and absorption.
Understanding the final stages of digestion, including water absorption and the formation and elimination of feces.

03Transport Systems in Living Things
Comparing how nutrients, gases, and wastes are moved across different biological scales in plants and humans.
Exploring the fundamental need for transport systems in multicellular organisms to maintain life processes.
Investigating the heart, blood vessels, and blood as a localized transport network.
Exploring the composition of blood (red blood cells, white blood cells, platelets, plasma) and their roles.
Understanding how water and minerals move up from the roots to the leaves in vascular plants.
Understanding how sugars produced during photosynthesis are transported throughout the plant via the phloem.
Analyzing the passive movement of substances from an area of higher concentration to lower concentration.
Analyzing the specific diffusion of water across a selectively permeable membrane.
Exploring how cells use energy to move substances against their concentration gradient.

04Human Reproduction and Sexual Health
Exploring the biological processes of reproduction, the changes during puberty, and the importance of responsible choices.
Detailed study of the male reproductive organs and their functions in sperm production and delivery.
Detailed study of the female reproductive organs and their functions in egg production, fertilization, and gestation.
Understanding the physical changes in females during puberty, including the onset of menstruation and its basic biological purpose.
An age-appropriate introduction to the process of conception, focusing on the meeting of sperm and egg.
A simplified overview of the very early stages of human development after conception, focusing on cell division and growth.
Discussing the physical and emotional changes experienced during adolescence.
Understanding the importance of responsible decision-making regarding sexual health, including contraception.
Emphasizing the importance of personal hygiene for maintaining reproductive health and preventing common infections.

05Electrical Systems and Circuits
An investigation into the flow of charge, the components of circuits, and the safe use of electricity in homes.
Exploring the nature of electric charges, how they are generated, and their interactions.
Defining electric current as the rate of flow of charge and its measurement.
Understanding voltage as the energy per unit charge and its role in driving current.
Defining resistance as the opposition to current flow and factors affecting it.
Understanding the mathematical relationship between current, voltage, and resistance.
Designing and analyzing circuits where components are connected in a single path.
Designing and analyzing circuits where components are connected in multiple paths.
Understanding electrical power, energy consumption, and how to calculate electricity costs.
Examining the hazards of electricity and how fuses, circuit breakers, and earthing protect us.

06Interactions within Ecosystems
Studying the flow of energy and cycling of nutrients in nature and the impact of human technology on environmental balance.
Introduction to the concept of an ecosystem, distinguishing between biotic and abiotic components.
Identifying the roles of different organisms in an ecosystem based on how they obtain energy.
Analyzing how energy is transferred from the sun through producers to various levels of consumers.
Understanding the transfer of energy through trophic levels and the concept of ecological pyramids.
Investigating the cycling of essential nutrients like carbon and nitrogen through ecosystems.
Investigating how structural and behavioral adaptations allow organisms to thrive in specific environments.
Understanding the concept of biodiversity, its value, and the threats it faces.
Evaluating the consequences of pollution (air, water, land) and deforestation on ecosystems.
Understanding the causes of climate change, its global effects, and potential solutions.
Exploring strategies for conserving biodiversity and promoting sustainable practices.