All resources for P2.1 GCSE OCR Chemistry Gateway 9-1 Triple and combined (Higher and Foundation) is covered in this material. Includes: Relative Formula Mass Empirical Formula Pure and Impure Substances Filtration and Crystallisation Simple Distillation Paper Chromatography Gas and Think Layer Chromatography Purification and Checking Purity

OCR AS level Chemistry: Basic Concepts of Organic Chemistry apart of the Module 4: Core Organic Chemistry and Analysis All presentations come with worked examples, solutions and homeworks

Resources for P5.2 GCSE OCR Physics Gateway 9-1 Triple and Combined (Higher and Foundation) is covered in this material. Each lesson includes student activities and full worked answers. Law of reflection Labeling and measuring angles of incidence and reflection Practical activity instructions - fully animated. Reflection, absorption, and refraction is affected by wavelength of electromagnetic wave. Refraction the change of velocity - speed and direction Magnitude of refraction depending on wavelength Magnitude of refraction depending on optical density Refraction practical activity instructions Wave speed, wavelength, and frequency relationship in refraction Convex and Concaves lenses Eyes and corrective lenses Refraction and wavelength Focal points for lenses Determining the type of images produced through a lens Names of colours for the visible spectrum Coloured filters Coloured objects acting as a coloured filters White light and refracting prism Refraction and wavelength Specular reflection Diffuse scattering Scattering - Why the sky is blue and milk is white.