Learn // Topics
All topics
121 to 136 of 136 topics
By subject and area, youngest first
Science // Volcanoes & Earthquakes
Supervolcanoes & Volcanic WinterDescribe calderas such as Yellowstone and Toba as supervolcanoes capable of erupting thousands of cubic kilometres of ash; explain how sulphur dioxide aerosols…
Ages 12 to 13ConceptScience // Volcanoes & Earthquakes
Hazard Assessment & EvacuationExplain probabilistic hazard assessment using eruption recurrence intervals and fault slip rates; describe how volcano observatories monitor ground deformation…
Ages 12 to 14ConceptScience // Volcanoes & Earthquakes
Volcanoes & Mass ExtinctionsExplain how large igneous provinces (LIPs) — massive outpourings of lava over millions of years — caused global warming and ocean acidification that drove mass…
Ages 13 to 14ConceptScience // Waves, Light & Sound
Reflection & RefractionState the law of reflection (angle of incidence = angle of reflection) and explain refraction as the change in speed and direction when light crosses a boundary…
Ages 11 to 12ConceptScience // Waves, Light & Sound
White Light & ColourExplain that white light is a mixture of all visible colours (ROYGBIV), describe dispersion through a prism, explain why objects appear coloured (selective…
Ages 11 to 12ConceptScience // Waves, Light & Sound
Wave Properties & TypesDescribe waves in terms of amplitude, wavelength, frequency, and wave speed; distinguish transverse waves (oscillation perpendicular to direction of travel)…
Ages 11 to 12ConceptScience // Waves, Light & Sound
How Sound Waves TravelExplain that sound is produced by vibrating objects and travels as a longitudinal pressure wave through solids, liquids, and gases; describe reflection of sound…
Ages 11 to 12ConceptScience // Waves, Light & Sound
The Electromagnetic SpectrumDescribe the full electromagnetic spectrum from radio waves to gamma rays, in order of increasing frequency and energy; explain that all EM waves travel at the…
Ages 12 to 13ConceptScience // Waves, Light & Sound
Waves & Different MaterialsExplain how waves can be absorbed, transmitted, or reflected by different materials, and apply these interactions to explain colour perception, sight…
Ages 12 to 13ConceptScience // Waves, Light & Sound
Ray Diagrams & ImagesConstruct ray diagrams to show the formation of images by plane mirrors and converging lenses, identifying whether images are real or virtual, magnified or…
Ages 12 to 13RepresentationScience // Waves, Light & Sound
Drawing Ray DiagramsDraw ray diagrams to show reflection at a plane mirror (angle of incidence = angle of reflection) and refraction at a boundary between media; use ray diagrams…
Ages 12 to 13RepresentationScience // Weather & Climate
Global Wind PatternsExplain that unequal solar heating drives large-scale atmospheric circulation: Hadley cells (0-30°), Ferrel cells (30-60°), and polar cells (60-90°) produce the…
Ages 11 to 13ConceptScience // Weather & Climate
Greenhouse Gas ScienceDescribe the electromagnetic spectrum and distinguish between short-wave solar radiation and long-wave infrared radiation emitted by Earth; explain how…
Ages 11 to 12ConceptScience // Weather & Climate
Hurricanes, Tornadoes & MonsoonsExplain how hurricanes form and intensify over warm ocean water (latent heat release, low-pressure spiral); describe tornado formation within supercell…
Ages 12 to 13ConceptScience // Weather & Climate
Reading Ancient Climate RecordsExplain how ice cores preserve ancient air bubbles, isotope ratios, and volcanic markers allowing reconstruction of temperature and CO2 going back 800,000…
Ages 12 to 14ConceptScience // Weather & Climate
Net Zero & Energy TransitionEvaluate the energy transition required to reach net zero: renewable energy scaling, electrification of transport and heat, green hydrogen; describe carbon…
Ages 13 to 14Concept