A short video/audio guide explaining energy and biomass in food systems: energy loss at each trophic level, pyramids of biomass, energy efficiency calculations. 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 and function of white blood cells. 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 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 electrolysis: electricity can decompose ionic compounds into elements; useful elements in brine, e.g. chlorine for PVC; negative ions give up electrons at the anode, positive ions take up electrons at the cathode; half equations of oxidation/reduction; chlorine and hydrogen molecules are discharged as gases; remaining solution is NaOH, a useful industrial substance. 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 gene alleles and heredity: chromosome pairs are passed down from parents in sexual reproduction; dominant and recessive gene alleles; allele combinations for gene expression in the phenotype; sickle cell disease, cystic fibrosis, and polydactyly as examples; homozygous and heterozygous genotypes; using Punnett squares and genetic cross diagrams to determine probable outcomes. 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 essentials of fractional distillation: crude oil is a mixture, uses of different fractions, their sizes, boiling points, viscosity and volatility. 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 role and function of white blood cells. 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 essentials of this topic: including variation, competition, adaptation, survival of the 'best adapted', isolation, speciation, Darwin's finches, the fossil record, pentadactyl limbs, Lamarck's theory, chance mutations in giraffe necks. 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 essentials of atomic structure and ionic bonding, using sodium chloride as an example. Ideas covered include: atomic numbers, groups in the Periodic Table, electron shells, stability of noble gases, transfer of electrons, electrostatic force of attraction, giant lattice structure. 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 the electricity grid: collisions of free electrons in metal wires heats the wire; energy is lost in transmission; power = voltage x current; step-up and step-down transformers; turns ratio calculations. 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 essentials of atomic structure and ionic bonding, using sodium chloride as an example. Ideas covered include: atomic numbers, groups in the Periodic Table, electron shells, stability of noble gases, transfer of electrons, electrostatic force of attraction, giant lattice structure. 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 essentials of fractional distillation: crude oil is a mixture, uses of different fractions, their sizes, boiling points, viscosity and volatility. 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 basics of emulsions: cooking oil, water and detergent as an example; hydrophilic/hydrophobic characteristics of emulsifiers; typical emulsions; health questions about food additives. 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 essentials of cracking and polymerization: e.g. cracking decane to produce octane and ethene; the bromine test; polymerization of propylene; properties and uses of HDPE and LDPE. 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 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 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 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 life cycle of stars like our Sun: gravity brings dust and gas together; nuclear fusion forms protostar (H fuses to He); main sequence balances gravity and electromagnetic radiation; red giant, white dwarf and black dwarf phases end the cycle. 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 life cycle of stars like our Sun: gravity brings dust and gas together; nuclear fusion forms protostar (H fuses to He); main sequence balances gravity and electromagnetic radiation; red giant, white dwarf and black dwarf 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 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 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 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.