Year 8 Science

Free interactive Year 8 Science notes for NSW students: ecosystems and food webs, microorganisms, plants and body systems, energy, elements, compounds and mixtures, and the changing Earth.

1Pick a chapter below.
2Read and explore: every topic has its own diagrams and an interactive you can play with.
3Test yourself: a quiz, fill the gaps, sorting tasks and exam-style short answers you mark against a marking guide.

Year 8 finishes Stage 4 Science. It builds on Year 7 (cells, particles, forces) and sets up the bigger ideas of Years 9 and 10. Tap Mark as mastered after each topic to track your progress on this device. No account needed.

Chapters

1 Ecosystems 11 sections

Ecosystems, biotic and abiotic factors, food chains and food webs, energy flow and the 10% rule, habitat loss, pesticides building up in food chains, introduced species and biological control, microorganisms and what they do for us and against us, managing bushfires and other natural events, and sustainable farming.

Notes Quizzes
2 Functioning Organisms 13 sections

How flowering plants take in water, make food, grow and reproduce; how the human digestive, circulatory, respiratory, excretory, skeletal and muscular systems keep every cell supplied; cell division for growth, repair and reproduction; and how science and technology improve human health.

Notes Quizzes
3 Energy 8 sections

The forms of energy and how they transform, energy flow diagrams and efficiency, heat transfer by conduction, convection and radiation, electric circuits, generating and using electricity, and how Australia is changing the way it makes power.

Notes Quizzes
4 Elements, Compounds and Mixtures 9 sections

Atoms and subatomic particles, elements and the periodic table, physical and chemical properties, metals, non-metals and allotropes, compounds and chemical formulas, mixtures, and how materials have shaped human history from stone tools to smartphones.

Notes Quizzes
5 Chemical Change 9 sections

Physical and chemical change, the signs of a chemical reaction, word equations and conservation of mass, energy in reactions, chemistry in cooking and nature, and how chemists make fuels, plastics, medicines and new materials.

Notes Quizzes
6 The Changing Earth 11 sections

The structure of the Earth, moving plates, igneous, sedimentary and metamorphic rocks, weathering, erosion and deposition, the rock cycle, minerals and mining, fossils, and how scientists work out the age of rocks.

Notes Quizzes