OCR AS level Chemistry: Alkenes is apart of the Module 4: Core Organic Chemistry and Analysis All presentations come with worked examples, solutions and homeworks Comparing pi-bond (π-bond) and sigma bonds (σ-bonds). Aliphatic alkenes and alicyclic arrangements of molecules s, p, d orbitals for electrons Trigonal planar shape of alkanes leading to 120 degree bond angle. E/Z isomerism Conditions for trans- and cis- isomerism Cahn-Ingold-Prelog rules and priority ordering Alkene addition reactions: Hydrogen with a nickel catalyst Halogens Hydrogen halide Steam with an acid catalyst Test for unsaturated alkenes. Bond enthalpy for sigma and pi bonds. Electrophile molecules Electronegativity Reaction mechanisms for addition reaction of alkenes and hydrogen halides Carbocations and stability Markownikoff’s Rule Monomers and repeat units Addition Polymerisation for: Polyethene Polypropene Polylactate Polystyrene Polyvinyl Chloride (PVC) Environmental Concerns from polymers including: Combustion of polymers recycling PVC biogradeable bioplastics photodegradable polymers feedstock recycling

All resources for P7.2 P7.2 Power and Efficiency GCSE OCR Physics Gateway 9-1. Triple and combined (Higher and Foundation) is covered in this material. All powerpoints include student activities and worked examples. Electrical Work Done Paying for Electricity Electrical Energy Transfers Electrical Heating Thermal Conductivity Efficiency and Sankey Diagrams

OCR AS level Chemistry: Haloalkanes is apart of the Module 4: Core Organic Chemistry and Analysis All presentations come with worked examples, solutions and homeworks Naming Haloalkanes Classifying Haloalkanes (primary, secondary, tertiary) Electronegativity Reaction mechanism for hydrolysis Rates of reactions for hydrolysis Reaction conditions for hydrolysis Definitions for CFC (Chlorofluorocarbons) and HCFC (Hydachlorofluorocarbons) Creation of ozone Depletion of ozone with CFCs Reaction steps including initiations and propagation

All resources for P8.1 Physics on the move GCSE OCR Physics Gateway 9-1. Triple and combined (Higher and Foundation) is covered in this material. Average speeds of walking, running, cycling, cars, trains, wind, sound, and light. The speed equation The acceleration equation Explaining average speed camera Explaining instantaneous speed camera Estimating everyday accelerations Calculating speed from rotation speed and circumference of wheels Converting from miles per hour to meters per second Reaction time definition Factors that increase reaction time Simple reaction time experiment Thinking distance Rearranging equations Speed equation (Final velocity)2 – (Initial velocity)2 = 2 x Acceleration x Distance v2 – u2 = 2 a s Factors affecting braking distance Total stopping distances Calculating area of a velocity-time graph for displacement (distance traveled). Rearranging equations MOT testing Large accelerations produce large forces. Values of g that cause severe injury or death Road Safety Newton’s First Law and seat belts Crumple zones Force = Mass x Acceleration Acceleration = Change in velocity /Time taken Estimating speed, accelerations and forces involved in large accelerations for everyday road transport.

OCR AS level Chemistry: Organic Synthesis is apart of the Module 4: Core Organic Chemistry and Analysis All presentations come with worked examples, solutions and homeworks Heating under reflux Distillation Re-distillation Purifying Organic Products Removing impure acids from organic compounds Drying agents Functional Groups - Alkane, Alkene, Haloalkane, Alcohols, Carboxylic Acid, Ketone, Aldehyde, Ester, Amine, Nitrile. One-step synthetic routes with reagents and conditions Two-step synthetic routes with reagents and conditions

OCR AS level Chemistry: Alcohols is apart of the Module 4: Core Organic Chemistry and Analysis All presentations come with worked examples, solutions and homeworks Naming alcohols Classifying alcohols (primary, secondary, tertiary) Electronegativity Polar and non-polar molecules Explaining physical properties of alcohols compared to alkanes Volatility Solubility Melting points Chain length and London forces Combustion of alcohols Reflux condition for reactions Primary alcohol to aldehydes Primary alcohols to carboxylic acids Secondary alcohols to ketones Dehydration of alcohols Substitution reactions for alcohols