This PowerPoint presentation with worked examples and student activities covers: Topic 1.1 of Science Fundementals of the OCR Applied Science Spec. nucleus contains protons and neutrons surrounded by electrons relative masses and charges nuclear and atomic diameters nucleon number, proton number and isotopes proton number defines the type of atom nuclear notation attractive and repulsive forces within the nucleus

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 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 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

This PowerPoint presentation with worked examples and student activities covers: Topic 4.1 of Module 1: Science Fundamentals of the OCR Applied Science Spec. • Alkanes as saturated hydrocarbons containing single C-C and C-H bonds • Alkenes as unsaturated hydrocarbons containing a C=C double bond • Alkynes as unsaturated hydrocarbons containing a C ≡ C triple bond • Name and draw structural and skeletal formulae of the first four members of alkanes, alkenes and alkynes • Aldehydes and ketones as organic compounds containing the C=O group • Name and draw the structural formulae of the first four aldehydes and the first two ketones • Alcohols as organic compounds containing the OH group • Name and draw structural and skeletal formulae of the first four alcohols • Conversion of alcohols to form aldehydes and ketones is classified as an oxidation reaction • Name and draw structural and skeletal formulae of the first four carboxylic acids • Reaction of carboxylic acids with an alkali, to include full equations using structural formulae • Name and draw structural and skeletal formulae of the four C4H8O2 esters • How an ester can be made from a carboxylic acid and an alcohol

This PowerPoint presentation with worked examples and student questions covers: • Reaction profiles for exothermic and endothermic • Energy stores of particles and surroundings • Activation energy • Describing the main features of reaction profiles.

This PowerPoint presentation with worked examples and student questions covers: Definitions for anions, cations, anodes, cathodes. Tests for carbonate ions Tests for sulfate ions Tests for halide ions

OCR AS Physics: Analysing Circuits is a part of the Module 4: Electrons, Waves, and Photons. PowerPoint with worked examples and homework. Drawing and labeling circuit diagrams Adding Resistors in Series and Parallel Ohm’s Law Kirchhoff’s Laws The Electrical Power Equation

This presentation covers OCR Gateway Physics 9-1 P3.2.2 Series and Parallel Circuits Rule for current in series and parallel circuits Rule for potential difference in series and parallel circuits. Working scientifically Student activities with worked solutions Exam questions with worked solutions

A simple scientist of the week reward system display is included which highlights women and PoC in STEM jobs.

OCR A level Physics: Solids, Liquids and Gases is a part of the Module 5: Newtonian World and Astrophysics. The PowerPoint presentation includes worked examples, solutions and a homework.

This presentation covers OCR Gateway Physics 9-1 P6.1.5 Radiation in and out of atoms. This PowerPoint is a whole lessons included with student activities and animated answers. Arrangements of electrons and distance from the nucleus Electron energy levels Absorbing electromagnetic radiation Electromagnetic radiation and energy Absorption spectra Emission spectra Discovery of helium

OCR A level Physics: Kinetic Theory of Gases is a part of the Module 5: Newtonian World and Astrophysics. The PowerPoint presentation includes worked examples, solutions and a homework.

OCR A level Physics: Specific Latent Heat is a part of the Module 5: Newtonian World and Astrophysics. The PowerPoint presentation includes worked examples, solutions and a homework.

OCR A level Physics: Internal Energy is a part of the Module 5: Newtonian World and Astrophysics. The PowerPoint presentation includes worked examples, solutions and a homework.

This presentation covers OCR Gateway Physics 9-1 P6.1.2 Alpha, Beta, Gamma Radiation. All presentations come with student activities and worked solutions. Types of radiation - alpha, beta, gamma, and neutrons Ions and Atoms Ionising Radiation Geiger counter Range and penetrative power Precautions using radiation sources Exam question with solution