A short video/audio guide explaining the basics of energy transfer: energy is stored in different forms, transferring energy changes its form; law of conservation of energy; Sankey diagrams; inefficiencies in power stations; equation of energy efficiency. Designed for GCSE revision, this high res animation is comprehensive in its coverage, and can also be used on a large screen as your main teaching resource for the topic.

A short video/audio guide to red shift and the Doppler effect: red shift in the light from distant galaxies; Doppler effect of an ambulance siren (speed of sound in air, pitch/frequency, wavelength); red shift as evidence for the Big Bang; also CMBR. Designed for GCSE revision, this high res animation is comprehensive in its coverage, and can also be used on a large screen as your main teaching resource for the topic.

A short video/audio guide explaining the essentials of cracking and polymerisation: e.g. cracking decane to produce octane and ethene; the bromine test; polymerisation of propylene; properties and uses of HDPE and LDPE. Designed for GCSE revision, this high res animation is comprehensive in its coverage, and can also be used on a large screen as your main teaching resource for the topic.

A short video/audio guide that gets straight to the essence of this topic: the fundamentals of photosynthesis. Designed for test prep, this high res animation is comprehensive in its coverage, and can also be used on a large screen as your main teaching resource for the topic.

A short video/audio guide explaining the interactions and dependencies in food chains and food webs. Designed for test prep, this high res animation is comprehensive in its coverage, and can also be used on a large screen as your main teaching resource for the topic.

A short video/audio guide that gets straight to the essence of this topic: the role of the kidneys, ADH, negative feedback etc. Designed for test prep, this high res animation is comprehensive in its coverage, and can also be used on a large screen as your main teaching resource for the topic.

A short video/audio guide that gets straight to the essence of this topic: how blood glucose levels are controlled by the pancreas via insulin, glucagon, and negative feedback. Designed for test prep, this high res animation is comprehensive in its coverage, and can also be used on a large screen as your main teaching resource for the topic.

A short video/audio guide that gets straight to the essence of this topic: explaining the menstrual cycle, the role of hormones, IVF. Designed for test prep, this high res animation is comprehensive in its coverage, and can also be used on a large screen as your main teaching resource for the topic.

A short video/audio guide that gets straight to the essence of this topic: the roles in thermoregulation of the hypothalamus, sweating, blood vessels, hair on the skin, negative feedback. Designed for test prep, this high res animation is comprehensive in its coverage, and can also be used on a large screen as your main teaching resource for the topic.

A short video/audio guide that gets straight to the essence of this topic: how genetic mutations lead to 'superbugs' like MRSA. The role of chance and the idea of harmful/beneficial mutations are explored. Designed for test prep, this high res animation is comprehensive in its coverage, and can also be used on a large screen as your main teaching resource for the topic.

A short video/audio guide covering the basics of metals: properties and uses, the reactivity series, extraction methods (heating with carbon/electrolysis), precious metals. Designed for GCSE revision, this high res animation is comprehensive in its coverage, and can also be used on a large screen as your main teaching resource for the topic.

A short video/audio guide explaining the basics of emulsions: cooking oil, water and washing-up liquid as an example; hydrophilic/hydrophobic characteristics of emulsifiers; typical emulsions; health questions about food additives. Designed for GCSE revision, this high res animation is comprehensive in its coverage, and can also be used on a large screen as your main teaching resource for the topic.

A short video/audio guide covering the basics of waves: e.g. oscillations, energy transfer, radiation; difference between mechanical and electromagnetic waves; different waves of the electromagnetic spectrum, their uses and hazards; transverse and longitudinal waves; compression and rarefaction; calculations of speed/frequency/wavelength. Designed for test prep, this high res animation is comprehensive in its coverage, and can also be used on a large screen as your main teaching resource for the topic.

A short video/audio guide covering the basics of waves: e.g. oscillations, energy transfer, radiation; difference between mechanical and electromagnetic waves; different waves of the electromagnetic spectrum, their uses and hazards; transverse and longitudinal waves; compression and rarefaction; calculations of speed/frequency/wavelength. Designed for GCSE revision, this high res animation is comprehensive in its coverage, and can also be used on a large screen as your main teaching resource for the topic.

A short video/audio guide explaining the life cycle of massive stars: gravity brings dust and gas together; nuclear fusion forms protostar (H fuses to He); main sequence balances gravity and electromagnetic radiation; red supergiant phase, supernova explosion and neutron star/black hole phases end the cycle. Designed for GCSE revision, this high res animation is comprehensive in its coverage, and can also be used on a large screen as your main teaching resource for the topic.

A short video/audio guide explaining the nitrogen cycle: N2 in the atmosphere is inert; nitrogen-fixing bacteria and decomposition produce ammonia/ammonium; fixation can also occur with lightning; nitrifying bacteria produce nitrates; nitrates enter the food chain through plants; denitrifying bacteria return some N2 to the air. Designed for GCSE revision, this high res animation is comprehensive in its coverage, and can also be used on a large screen as your main teaching resource for the topic.

A short video/audio guide explaining the essentials of combustion: exothermic reactions of short-chain hydrocarbons, complete and incomplete combustion, consequences of combustion (carbon monoxide, soot, acid rain, global warming), catalytic converters. Designed for GCSE revision, this high res animation is comprehensive in its coverage, and can also be used on a large screen as your main teaching resource for the topic.

A short video/audio guide explaining the physics of earthquakes: plate tectonics, characteristics of primary and secondary waves, seismometers and triangulation, shadow zone. Designed for test prep, this high res animation is comprehensive in its coverage, and can also be used on a large screen as your main teaching resource for the topic.

A short video/audio guide explaining the greenhouse effect: includes the physics of IR radiation, graphical evidence correlating long-term CO2 levels and temperature, reasons for recent increases (e.g. combustion of fossil fuels, deforestation, industrial farming). Designed for GCSE revision, this high res animation is comprehensive in its coverage, and can also be used on a large screen as your main teaching resource for the topic.

A short video/audio guide that gets straight to the essence of this topic: how reflex actions work, using the example of a foot treading on a pin. Designed for test prep, this high res animation is comprehensive in its coverage, and can also be used on a large screen as your main teaching resource for the topic.