Learn // Topics
All topics
241 to 264 of 438 topics
By subject and area, youngest first
Science // Organisms & Life Processes
Digestion & EnzymesDescribe the organs of the human digestive system and how food is physically and chemically digested, including the role of enzymes as biological catalysts
Ages 11 to 13ConceptScience // Organisms & Life Processes
Joints, Tendons & LigamentsExplain biomechanics — the interaction between skeleton and muscles at joints, including the roles of tendons (attach muscle to bone) and ligaments (attach bone…
Ages 11 to 13ConceptScience // Organisms & Life Processes
Muscles Work in PairsExplain that muscles work in antagonistic pairs — one contracts while the other relaxes — to produce movement, using the bicep and tricep as a key example
Ages 11 to 13ConceptScience // Organisms & Life Processes
Nutrients in a Healthy DietIdentify the seven components of a healthy diet — carbohydrates, lipids, proteins, vitamins, minerals, dietary fibre, and water — and explain the role of each…
Ages 11 to 13ConceptScience // Organisms & Life Processes
The Human SkeletonDescribe the structure and four main functions of the human skeleton: support, protection, movement, and production of blood cells in bone marrow
Ages 11 to 13ConceptScience // Organisms & Life Processes
Diet Imbalance & DeficiencyExplain the health consequences of an imbalanced diet including obesity (excess energy), starvation (severe energy deficit), and deficiency diseases (lack of…
Ages 11 to 13ConceptScience // Organisms & Life Processes
Single-Celled OrganismsExplain how unicellular organisms such as bacteria and Amoeba carry out all the functions of life within a single cell
Ages 11 to 12ConceptScience // Organisms & Life Processes
Heart Structure & Double CirculationDescribe the structure of the heart (four chambers, valves, coronary arteries) and explain how it pumps deoxygenated blood to the lungs and oxygenated blood to…
Ages 12 to 13ConceptScience // Organisms & Life Processes
Gut Bacteria & DigestionExplain the role of gut microbiome bacteria in digestion, including breaking down dietary fibre and contributing to a healthy gut environment
Ages 12 to 13ConceptScience // Organisms & Life Processes
Gas Exchange & BreathingDescribe the structure of the human gas exchange system (trachea, bronchi, bronchioles, alveoli) and explain how the mechanism of breathing — using pressure…
Ages 12 to 13ConceptScience // Organisms & Life Processes
Aerobic RespirationExplain aerobic respiration as the process by which organisms release energy from glucose using oxygen, producing carbon dioxide and water; write and interpret…
Ages 12 to 13ConceptScience // Organisms & Life Processes
How Diffusion WorksExplain diffusion as the net movement of particles from a region of higher concentration to lower concentration, and describe its role in moving materials…
Ages 12 to 13ConceptScience // Organisms & Life Processes
Plant ReproductionDescribe the structure of a flower and explain the processes of wind and insect pollination, fertilisation, seed and fruit formation, and seed dispersal in…
Ages 12 to 13ConceptScience // Organisms & Life Processes
Anaerobic RespirationExplain anaerobic respiration in animals as the incomplete breakdown of glucose to lactic acid when oxygen is in short supply, causing muscle fatigue; contrast…
Ages 12 to 14ConceptScience // Organisms & Life Processes
Body Temperature RegulationExplain how the human body detects and responds to environmental changes including temperature, including the role of the skin in temperature regulation…
Ages 12 to 14ConceptScience // Organisms & Life Processes
Human ReproductionDescribe the structure and function of the male and female human reproductive systems, and explain the processes of fertilisation, gestation, and birth…
Ages 12 to 13ConceptScience // Organisms & Life Processes
Pathogens & the Immune SystemExplain how pathogens (bacteria, viruses, and fungi) cause disease and describe how the immune system responds, including the roles of white blood cells…
Ages 12 to 14ConceptScience // Organisms & Life Processes
Effects of Drugs & AlcoholExplain the effects of recreational drugs including alcohol, tobacco, and illegal substances on behaviour, health, and body systems, and distinguish between…
Ages 13 to 14ConceptScience // Polar Regions
Where Are the Poles?Know that Earth has a North Pole and a South Pole — the two coldest places on the planet — and be able to find them on a globe, understanding that they are at…
Ages 5 to 7ConceptScience // Polar Regions
Arctic vs AntarcticKnow that the Arctic (North Pole) and Antarctic (South Pole) are very different — the Arctic is a frozen ocean surrounded by land where people and polar bears…
Ages 5 to 7ConceptScience // Polar Regions
Polar AnimalsKnow about other polar animals besides penguins and polar bears — seals that swim under ice, walruses with long tusks, Arctic foxes that turn white in winter…
Ages 5 to 7ConceptScience // Polar Regions
PenguinsKnow key facts about penguins — they live in the Antarctic and Southern Hemisphere, they cannot fly but are excellent swimmers, Emperor penguins are the largest…
Ages 5 to 7ConceptScience // Polar Regions
Polar BearsKnow key facts about polar bears — they live only in the Arctic (not the Antarctic), they have thick white fur and a layer of fat (blubber) to keep warm, they…
Ages 5 to 7ConceptScience // Polar Regions
Ice & SnowKnow that water can be solid (ice and snow) or liquid, that snow is made of tiny frozen ice crystals, that icebergs are huge chunks of ice floating in the ocean…
Ages 5 to 7Concept