This presentation covers OCR Gateway Physics 9-1 P7.2.1 Electrical Power and Work Done. All presentations come with student activities and worked solutions. Definition of power Converting between W and kW Converting between seconds, minutes, and hours Calculating work done in kWh and J Converting between kWh and J

OCR AS Chemistry: The Chemistry of Haloalkanes This PowerPoint is a whole lessons included with student activities, animated answers, homework questions with answers provided. This lesson covers: Naming Haloalkanes Classifying Haloalkanes (primary, secondary, tertiary) Electronegativity Reaction mechanism for hydrolysis Rates of reactions for hydrolysis Reaction conditions for hydrolysis

This PowerPoint presentation with worked examples and student questions covers: • Atoms and the particle model for solids, liquids and gases • Subatomic particles and the property of charge • Structure of a metal • Explanations of the Van de Graff and Lightning.

This PowerPoint presentation with worked examples and student questions covers: • Types of greenhouse gases – carbon dioxide, methane, nitrous oxide, and water vapour. • Greenhouse effect with activity • Class discussion on news report of effects of climate change • Extended writing task with student friendly mark scheme and scaffolding • Data analysis task • Explanation of data collection of CO2 levels

This PowerPoint presentation with worked examples and student questions covers: • Constructing Series Circuit • Constructing Parallel Circuits • Analysing results for Potential Difference • Analysing results for Current • Clear resource list, diagrams and photos to aid teaching.

This PowerPoint presentation with worked examples and student questions covers: Chemical cells uses Fuel cell uses Comparing fuel cells and chemical cells Environmental impact of fuel cells and chemical cells The structure of fuel cells The operation of fuel cells Half-equations for fuel cells

This PowerPoint presentation with worked examples and student activities covers: Topic 4.3 of Module 1: Science Fundamentals of the OCR Applied Science Spec. • Stating definitions and comparing structural isomers and stereoisomers. • Condensed structural formula • Lines of symmetry for structural isomers • Cis- and Trans isomers • Optical isomers as non-superimposable mirror images. • Wedge and Dash Notation • Identifying chiral centres (asymmetric carbons) • Le Bel-van’t Hoff rule • Determining the maximum number of isomers.

OCR Applied Science Level 3 - Module 21: Product Testing Techniques. This PowerPoint presentation with worked examples and student activities covers: Topic 2.1 of Module 21: Product Testing Techniques. 2.1 Types of testing i.e.: • in-vitro • in-vivo • titration • extraction and separation

OCR Applied Science Level 3 - Module 21: Product Testing Techniques. This PowerPoint presentation with worked examples and student activities covers: Topic 2.2 of Module 21: Product Testing Techniques. 2.2 Laboratory testing during development i.e.: • formulation • production • quality control and assurance • after sale monitoring.

This PowerPoint presentation with worked examples and student activities covers: Topic 4.2 of Module 1: Science Fundamentals of the OCR Applied Science Spec. Determining the empirical formula for compounds Draw monomers and repeat units using structural and skeletal formula of the following polymers: Polyethene​ Polypropene​ Polylactate​ Polystyrene​ Polyvinyl chloride (PVC)

OCR Applied Science Level 3 - Module 21: Product Testing Techniques. This PowerPoint presentation with worked examples and student activities covers: Topic 2.3 of Module 21: Product Testing Techniques. 2.3 Effectiveness of test • Appropriate test method • Data collection validity and reliability • Consistent chemical composition • Hazards and risks of use

This PowerPoint presentation with worked examples and student activities covers: Topic 1.1 and 1.2 of Module 21: Product Testing Techniques. Understand the influence of regulatory bodies on development of consumer products. 1.1 The relevant governing bodies that oversee product safety for manufacturers and consumers of products. 1.2 How governing bodies influence how quality control is applied.

This two lesson presentation covers OCR Gateway Biology 9-1 B1.4.2 Photosynthesis Experiments This PowerPoint is a whole lessons included with student activities and animated answers. The positive test for starch Experimental procedure for testing starch in leaves. Testing for the need of chlorophyll for photosynthesis. Testing for the need of light for photosynthesis. Testing for the need of carbon dioxide for photosynthesis. Testing oxygen produced via photosynthesis. Testing light intensity affects photosynthesis.

This PowerPoint presentation with worked examples and student activities covers: Topic 6.3 of Module 1: Science Fundamentals of the OCR Applied Science Spec. Current as flow of charge in a conductor. Use the equation: I = ΔQ ÷ Δt Ohm’s law illustrates the relationship of V ∝ I Use the equation: potential difference (V) = current (A) × resistance Use the equations for adding resistors in series and parallel Compare electromotive force and potential difference Use the equation: charge © = current (A) × time (s) Use and recognise the equation for mean drift velocity Use the equation: energy transferred (work done) (J) = charge © × potential difference (V) Use the equation: energy transferred (J, kWh) = power (W, kW) × time (s, h) Use the equation: power (W) = energy (J) ÷ time (s)

This PowerPoint presentation with worked examples and student activities covers: Topic 2.2 of Module 1: Science Fundementals of the OCR Applied Science Spec. Oxidation and reduction (redox) reactions Addition reactions of alkenes to include full balanced symbol equations Substitution reactions of alkanes and haloalkanes to include full balanced equations Addition polymerisation to include identification of monomers and repeating units Condensation polymerisation to include identification of monomers and repeating units Definition of a radical The role played by UV light in producing chlorine radicals from CFCs in the depletion of the ozone layer Equations to show how chlorine radicals can destroy many ozone molecules Displacement reactions to include full balanced equations for metals and halogens.

This PowerPoint presentation with worked examples and student activities covers: Topic 4.4 of Module 1: Science Fundamentals of the OCR Applied Science Spec. Complex carbohydrates (starch, glycogen, cellulose) • Carbohydrates found as monosaccharides, disaccharides, or polysaccharides (monomers, dimers or polymers) • Monomers held together by glycosidic bonds to form dimers and polymers, via condensation reactions • Monosaccharides include glucose, fructose and galactose • Disaccharides include maltose, sucrose and lactose • Polysaccharides include starch, glycogen and cellulose • Cellulose is found in plant cell walls where it provides strength/support and pliability • Starch and glycogen are energy sources Proteins and peptides from amino acids • Dipeptides are formed from two amino acids joined by a peptide bond, via a condensation reaction • Polypeptides are chains of amino acids joined by peptide bonds • Proteins/polypeptides have physiological or functional roles, including enzymes, carrier proteins in the plasma membrane, and structural roles, including collagen and elastin fibres in connective tissue Lipids from fatty acids, glycerol and phosphorus compounds • Monoglycerides, diglycerides and triglycerides are esters of fatty acids and glycerol • An ester bond forms between each fatty acid and the glycerol, via condensation reactions • Phospholipids contain glycerol plus two fatty acids and a phosphate group • Lipids act as an energy source within cells, as an insulation layer around animal organs, in the myelin sheath (found around some nerve fibres/axons) to increase speed of nerve transmission • Phospholipids form a bilayer in the plasma membrane Protein synthesis (transcription, translation) RNA, messenger, ribosomal and transfer • The nucleic acids, DNA and RNA, are polymers of nucleotides • Peptide bonds form between amino acids to create polypeptide chains/proteins • Recall a simple description of protein synthesis