KS 4 This is a full lesson with 11 colourful, PowerPoint slides (starter and plenary is included), a worksheet with differentiated levels of exercises and a case study available to use. This presentation defines the different types of interspecific interactions between biotic factors and the abiotic factors affecting interactions.

Key Stage 3 This is a unit of work on light refraction. It includes colourful power point presentations with animated pictures on the law of refraction, mirrors and lenses image formation, types of lenses, the eye and how we see, correcting vision defects, the eye and the camera, examples on visual distortions, the law of refraction and direction of bending as well as three worksheets on the above mentioned parts with differentiated levels of difficulty and some indicative correct answers on intermediate and advanced level questions/activities.

KS3 and KS4; How pH changes in neutralisation reactions

KS3/Explore the structure, function and utility of sensory organs. The lesson includes a youtube video resource to watch and an exercise to solve after watching the video.

KS3; How salts are formed and mechanisms; Starter & Plenary included; Differentiating questions

KS4 This is a full lesson with 20 colourful, PowerPoint slides (starter and plenary is included) and a worksheet with differentiated levels of exceptional exercises available to use. L.O. To understand how energy and nutrients flow in ecosystems is represented This presentation defines the different representations of energy and nutrients flow in ecosystems (food chains, food webs, ecological pyramids), the Lindeman's 10% law, the different types of ecological pyramids (biomass, energy, number), the types of pyramids of numbers (Upright, Partly upright, Inverted) as well as a great array of different types of exercises.