This PowerPoint presentation with worked examples and student activities covers: Topic 1.2 of Science Fundementals of the OCR Applied Science Spec. Elements are based on atomic structure and can be classified by the Periodic Table i.e.: organisation of elements within the table groups periods atomic number atomic mass atomic radius

This PowerPoint presentation with worked examples and student questions covers: Definitions for solution, solute, solvent, insoluble, soluble. The technique of filtration The technique of crystallisation

This PowerPoint presentation with worked examples and student activities covers: Topic 6.2 of Module 1: Science Fundamentals of the OCR Applied Science Spec. Structure of metals, giant covalent, and simple molecular structures. Properties of metals, giant covalent, and simple molecular structures. Forces and bonds of metals, giant covalent, and simple molecular structures. Phase diagrams – interpreting and calculating changes. Sublimation and phase diagrams.

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 questions covers: • Filled outer shells result in more stable electronic structures. • The electronic configuration ionic compounds • Models of giant ionic structures

This PowerPoint presentation with worked examples and student questions covers: • State a use for metals • Describe the structure of metals • Why metals make good electrical conductors. • Metals on the periodic table

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

This PowerPoint presentation with worked examples and student questions covers: • Pathways into medical chemistry • State the number of atoms from a chemical formula. • Properties of metals and non-metals • Determine state symbols for chemical equations • Balancing chemical equations

This PowerPoint presentation with worked examples and student questions covers: • State the number of electrons in each energy level. • Determine what type of ion an atom would form. • Calculate the ionic charge an atom would form with use of the periodic table. • Groups number, outer shell electrons, dot and cross diagrams

This PowerPoint presentation with worked examples and student questions covers: Tests for Hydrogen, Oxygen, Carbon Dioxide, Chlorine. Gifs of each gas test Electron structure for diatomic molecules

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 presentation covers OCR Gateway Physics 9-1 P5.3.2a Electromagnetic Reflection. Includes student activities and full worked answers. 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

OCR AS Chemistry: 13.2 Stereoisomerism This PowerPoint is a whole lessons included with student activities, animated answers, homework questions with answers provided. This lesson covers: E/Z isomerism Conditions for trans- and cis- isomerism Cahn-Ingold-Prelog rules and priority ordering

OCR AS Physics A: Diodes is a part of the Module 4: Electrons, Waves, and Photons. PowerPoint with worked examples and homework. Polarity of diodes Conventional current and diodes Plotting I-V curves for diodes Describing I-V curves for diodes

OCR AS Physics: Electrical Energy & Power is a part of the Module 4: Electrons, Waves, and Photons. PowerPoint with worked examples and homework. Derive three equations for electrical power Applying electrical power equations Create a circuit diagram to calculate power Base units for V A and W.

OCR AS Physics: Internal Resistance is a part of the Module 4: Electrons, Waves, and Photons. PowerPoint with worked examples and homework. Find lost volts and terminal potential difference from a source of emf Calculate internal resistance of a cell Calculate internal resistance of a cell with a graph Calculate EMF of a source

OCR AS Physics: Wave Properties is a part of the Module 4: Electrons, Waves, and Photons. PowerPoint with worked examples and homework.

This presentation covers OCR Gateway Physics 9-1 P3.1.2 Electrical Current Conditions for current to flow Conventional current and electron flow Measuring current with ammeters Current at junctions Converting from mA to A Rearranging equations Determining current and charge flow with equation

This lesson presentations covers OCR Gateway Physics 9-1 P4.2.5 Transformers. Examples of transformers in everyday life Structure of a transformer Step-up and Step-down transformers Transformer equation and rearranging equations. Worked Examples and Student problems with worked solutions. Explanation for use of step-up transformers - efficiency