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KS4 and KS5 resources for CIE,EDEXCEL and AQA

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Notes from a post graduate teacher and lecturer with 33 year teaching experience in science in UK based examinations .

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Notes from a post graduate teacher and lecturer with 33 year teaching experience in science in UK based examinations .
Stoichiometry and mole calculations for Cambridge O/L students
Liyanage1963Liyanage1963

Stoichiometry and mole calculations for Cambridge O/L students

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The practice mole workbook is based on the Cambridge O/L new syllabus covering up the following areas. 1 . writing Formulae , word equation, symbol equation and ionic equations 2.Calculating relative formula mass(molar mass) and percentage by mass 3.Calculating moles, molecules , atoms and mass of chemical compound 4.Calculating the moles and volume of gases 5.Calculating the concentration , moles and volume of solutions 6. Calculating the moles, molecules and atoms ( calculations with Avogadro Constant) 7.Calculating empirical formula and molecular formula. 8. Percentage purity and percentage yield 9. Calculating of reacting masses , excess and limiting reagents and prediction of the quantity of reactants and masses 10. Calculations problems related with titrations 11. Answers
Complete revision notes - Alkane and Alkene for EDEXCEL International GCSE
Liyanage1963Liyanage1963

Complete revision notes - Alkane and Alkene for EDEXCEL International GCSE

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The complete revision lesson notes are included: Alkanes Properties of alkanes Uses of alkanes Members of the alkane homologous series Naming alkanes Isomers of alkanes chemical reactions of alkanes Alkenes Properties of alkenes uses of alkenes Members of the alkene homologous series Naming alkenes Isomers of alkenes Chemical reactions of alkenes
Complete revision notes - Synthetic Polymers for EDEXCEL International GCSE(9-1)
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Complete revision notes - Synthetic Polymers for EDEXCEL International GCSE(9-1)

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The notes include the followings: • Definitions and concept of synthetic polymers • Addition polymers • Drawing the repeat unit of an addition polymer, including poly(ethene), poly(propene), poly(chloroethene) and (poly)tetrafluoroethene • Deducing the structure of a monomer from the repeat unit of an addition polymer • Explaining problems in the disposal of addition polymers, including:their inertness and inability to biodegrade and the production of toxic gases when they are burned. • Condensation polymerisation, in which a dicarboxylic acid reacts with a diol, produces a polyester and water • Writing the structural and displayed formula of a polyester, showing the repeat unit, given the formulae of the monomers from which it is formed including the reaction of ethanedioic acid and ethanediol • Learning about biopolyesters
Complete revision notes for EDEXCEL - GCSE( 9-1) - Force and motion
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Complete revision notes for EDEXCEL - GCSE( 9-1) - Force and motion

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The lesson notes provide the knowledge on following sub topics. Physical quantities and vector and scalar quantities. The relationships with speed, distance, time , displacement, velocity and acceleration. The motion graphs Motion in a circular path *Forces, stopping distance and momentum (with exam style worked examples) The relationship with force , mass and acceleration and related graphs Stopping distance and controlling speed Momentum and car safety