Science Library
Library for every O/L Science topic · Chosen topic by topic from the NIE syllabus
19 topics, in the order the syllabus teaches them · Grade 10 · Grade 11
All Topics
Grade 10
Matter, Elements and Compounds
Start here: Atomic Structure and the Periodic Table
Acids, Bases and the pH Scale
Start here: Acids and Bases
Plant and Animal Cells
Start here: Plant vs Animal Cells
Photosynthesis
Start here: Photosynthesis in Plants
Digestive, Circulatory, Respiratory and Nervous Systems
Start here: Human Biology
Motion, Force and Newton's Laws
Start here: Forces and Motion (interactive simulation)
Forms and Transformations of Energy
Start here: Energy Forms and Changes (interactive simulation)
Electricity and Simple Circuits
Start here: Circuits
Pollution, Climate Change and Conservation
Start here: What is an Ecosystem?
Grade 11
Chemical Compounds and Equations
Start here: Chemical Reactions and Reaction Rates
Hydrocarbons and Organic Compounds
Start here: Organic Chemistry
Diodes, Transistors and Simple Circuits
Start here: What is Electronics?
Heat, Temperature and Heat Transfer
Start here: Thermodynamics
Waves, Sound and Light
Start here: Mechanical Waves and Sound
Plant Structure and Transport in Plants
Start here: Plant Biology
Reproduction, Excretion and the Skeletal System
Start here: Human Biology
DNA, Genes and Principles of Heredity
Start here: Gene Expression (interactive simulation)
Ecosystems, Food Chains and Biodiversity
Start here: Ecology
Past Papers and Model Answers
Start here: e-thaksalawa — Ministry of Education e-learning
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