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ChemBear

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I am a GCSE and A-level Chemistry specialist teacher in a 14-18 school with 15 years teaching experience and several years research experience. I provide GCSE, AS and A2 Chemistry resources (mainly for the AQA specifications) to help students practice the concepts learned in lessons and I am a firm believer in 'Practice makes perfect'. I strive wherever possible to include the answers to the worksheets.

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I am a GCSE and A-level Chemistry specialist teacher in a 14-18 school with 15 years teaching experience and several years research experience. I provide GCSE, AS and A2 Chemistry resources (mainly for the AQA specifications) to help students practice the concepts learned in lessons and I am a firm believer in 'Practice makes perfect'. I strive wherever possible to include the answers to the worksheets.
A2 Chemistry Organic Spectroscopy Exam Style Questions (with answers)
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A2 Chemistry Organic Spectroscopy Exam Style Questions (with answers)

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This resource contains 10 questions covering Mass Spectroscopy and NMR. Each question is based around a compound/structure and asks students to identify splitting patterns in proton NMR and the numbers of peaks observed in their proton and carbon-13 NMR spectra. The questions also incorporate the identification of chiral centres and molecular formulae based on the skeletal formulae given in the questions.
A2 Chemistry Amino Acids and Polymers Exam Style Questions
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A2 Chemistry Amino Acids and Polymers Exam Style Questions

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This resource consists of 2 worksheets. The Amino Acids worksheet contains three questions (with answers) covering zwitterions, the structures of amino acids at high and low pH, and the accompanying reactions of amino acids with alcohols and excess halogenoalkanes. The polymers worksheet contains two questions (with answers) which cover the identification of repeating units for addition polymers and condensation polymers, and intermolecular forces present between the polymer chains in polyesters and polyesters.
AS and Year 1 Free-radical substitution Mechanisms Revision - Lollipanisms (Lollipop Mechanisms)
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AS and Year 1 Free-radical substitution Mechanisms Revision - Lollipanisms (Lollipop Mechanisms)

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A revision activity for learning and practicing free-radical substitution reactions. The above resources are needed along with a set of lollipop sticks. The stickers document contains 3 halogens (fluorine, chlorine and bromine - labelled as A, B and C) and 10 alkanes/halogenoalkanes (labelled 1 to 10) for the halogen to react with. Each pair or group of students should have a set of lollipop sticks containing 9 sticks with halogens printed or written on them (3 of each halogen) and one each of the 10 alkanes/halogenoalkanes. The sticks could be colour coded by adding a stripe of colour or washi tape around the top edge for ease of seeing. Students pick one halogen and one alkane/halogenoalkane and write the full mechanism including the initiation, propagation and termination steps. The answers are provided on 8 answer sheets which are set up to be printed on sticky labels (4 per sheet) or directly onto card to be cut up into A6 size. The cards could be ring bound (30 cards in total) to give one complete set of answers (A1-A10, B1 -B10 and C1-C10). Students can self-assess their answers. All combinations of answers included.
AQA GCSE 9-1 Trilogy CHEMISTRY Paper 1 (H and F)  Revision Notes with Required Practicals
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AQA GCSE 9-1 Trilogy CHEMISTRY Paper 1 (H and F) Revision Notes with Required Practicals

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Revision notes for AQA GCSE 9-1 TRILOGY Chemistry for Paper 1.Two pdf files are included - one for higher tier and one for foundation tier. Includes C1 Atomic Structure and the Periodic Table, C2 Structure, bonding and properties of matter, C3 Quantitative Chemistry, C4 Chemical Changes and C5 Energy Changes. Full coverage of all material and 3 required practicals needed for Paper 1 of the GCSE specification.
AQA AS and Year One Organic Synthesis Routes and Mechanism Practice Exam-Style Questions 2
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AQA AS and Year One Organic Synthesis Routes and Mechanism Practice Exam-Style Questions 2

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A resource suitable to revise and embed AS and Year One Chemistry Organic Synthesis routes with practice in naming and outlining the mechanisms covered by the AQA specification. This resource consists of 4 exam-style questions showing different organic synthesis routes. Students are required to identify and draw the mechanism for the reaction, and to identify the reagents and conditions needed for each conversion shown. Ideal for both AS and A2 students to revise and practice synthesis questions. The questions include free-radical substitution, nucleophilic substitution, hydrolysis reactions, elimination, addition polymerisation and electrophilic addition reactions. Answers are included.
AQA AS and Year One Chemistry Organic Synthesis Routes and Mechanism Practice Exam-Style Questions
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AQA AS and Year One Chemistry Organic Synthesis Routes and Mechanism Practice Exam-Style Questions

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A resource suitable to revise and embed AS and Year One Chemistry Organic Synthesis routes with practice in naming and outlining the mechanisms covered by the AQA specification. This resource consists of 3 exam-style questions showing different organic synthesis routes. Students are required to identify and draw the mechanism for the reaction, and to identify the reagents and conditions needed for each conversion shown. Ideal for both AS and A2 students to revise and practice synthesis questions. The questions include free-radical substitution, nucleophilic substitution, hydrolysis reactions, elimination, addition polymerisation and electrophilic addition reactions. Answers are included.
GCSE Chemistry Calculating Reacting Masses worksheet
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GCSE Chemistry Calculating Reacting Masses worksheet

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A worksheet comprising of 8 questions to help students practice calculating the moles of reactants and products. This sheet involves either calculating the maximum theoretical yield possible from a reaction or the amount of reactants needed for a reaction. Answers included.
AQA GCSE 9-1 Chemistry C8 Chemical Analysis - Identification of Positive and Negative Ions Starters
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AQA GCSE 9-1 Chemistry C8 Chemical Analysis - Identification of Positive and Negative Ions Starters

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Two starters/plenaries covering the GCSE Chemistry C8 Chemical Analysis Identification of Positive and Negative Ions for the Separate Science qualification. Students are asked to identify ionic compounds from their flame tests and/or the results from their chemical tests with sodium hydroxide (metal ions) and hydrochloric acid, acidified barium chloride and acidified silver nitrate. This covers all the required knowledge for the identification of positive and negative ions.
Time of Flight Mass Spectrometer Exam-Style Questions and Challenge
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Time of Flight Mass Spectrometer Exam-Style Questions and Challenge

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A selection of Time of Flight Mass Spectrometer questions including multiple choice, principles recall and sketching of mass spectra obtained. Later questions are more challenging and ask students to apply their knowledge of working out relative heights of peaks to new situations. Answers included.
AQA GCSE Chemistry Atomic Structure and Periodic Table Practice Makes Perfect Revision booklet (H)
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AQA GCSE Chemistry Atomic Structure and Periodic Table Practice Makes Perfect Revision booklet (H)

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This booklet is designed to revise the first section of the new AQA GCSE Chemistry/Trilogy course on Atomic Structure and the Periodic Table. It contains 10 revision sets of HIGHER level questions. Each question is related to one of ten common topics from the section. It can be used as a starter or plenary booklet over 10 lessons, or as part of a structured revision program. Students can monitor their progress over the course of the ten question sets.
GCSE Chemistry Calculating Relative Molecular Masses (Mr)  starter/plenary
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GCSE Chemistry Calculating Relative Molecular Masses (Mr) starter/plenary

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This is a PowerPoint activity that can be used as either a starter or plenary to assess understanding of how to calculate Mr for different substances. Slide 2 could be printed onto cards and each student given a different card to work out the Mr (30 different substances in total). If the relevant substance is clicked on slide 2, the PowerPoint shows the correct Mr for that substance. This is a useful AfL tool.