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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.
GCE A level Aromatic Chemistry Nomenclature (Naming Benzene Compounds)
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GCE A level Aromatic Chemistry Nomenclature (Naming Benzene Compounds)

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This resource includes a teacher information sheet on the naming of aromatic compounds, outlining when the compound ends in -benzene and when it starts with phenyl-. A worksheet and starter activity is included to practice the rules for naming aromatic compounds. Further resources for Aromatic Nomenclature are available in the accompanying Aromatic Chemistry AQA Teacher Support Pack containing more resources and activities covering nomenclature, electrophilic substitution reactions and exam-style questions.
GCSE Chemistry 9-1 Ionic and Simple Molecular Covalent Bonding Practice Questions
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GCSE Chemistry 9-1 Ionic and Simple Molecular Covalent Bonding Practice Questions

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This resource contains 14 practice questions. Four questions are based on interpreting dot-and-cross diagrams for ionic compounds and focuses on students explaining, in terms of electrons, how atoms react. The other ten questions are additional examples of simple covalent molecules that students could be asked to apply their knowledge of completing dot-and-cross diagrams to, for example hydrogen sulphide, iodine, silicon tetrahydride, ethane etc. These resources are provided in label format with 4 identical questions per sheet. These can be printed simply on A4 paper or can alternatively be printed on 4 per sheet labels and used as a diagnostic question for homework or to reinforce key concepts before the final exam.
GCSE Elements, mixtures and compounds worksheets
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GCSE Elements, mixtures and compounds worksheets

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Worksheets covering the basics of elements, compounds and mixtures for the new AQA GCSE Chemistry/Trilogy course. Could also be used for key stage 3 Science. This resources consists of 4 worksheets on one file: 1) Elements or compounds - identifying elements and compounds from symbols/formulae, 2) Elements, compounds and mixtures - matching statements (or could use as a card sort), 3) Identifying elements, compounds and mixtures from particle pictures and 4) Metal, non-metal or can't tell? - identifying metals and non-metals from properties given. Answers for each sheet included.
GCSE Chemistry 9-1 Working Out Protons, Electrons and Neutrons
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GCSE Chemistry 9-1 Working Out Protons, Electrons and Neutrons

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A worksheet to practice calculating the number of protons, electrons and neutrons in a given element (common to all GCSE exam boards). The sheet provides 30 different elements with their mass and atomic number. The elements gradually become larger with more neutrons providing more challenge towards the bottom of the sheet.
AQA A Level Chemistry Time of Flight Mass Spectrometer - Predicting Spectra of Diatomic Molecules
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AQA A Level Chemistry Time of Flight Mass Spectrometer - Predicting Spectra of Diatomic Molecules

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This resource consists of 3 PowerPoint presentations and 1 worksheet guiding students in how to predict the mass spectra of the diatomic molecules chlorine and bromine. This leads students through using simple probability to calculate the ratio of the 3 molecular ion peak heights and in sketching the spectra of chlorine and bromine. Also included are 2 application questions requiring students to apply their knowledge of probability in predicting the mass spectra of oxygen and nitrogen molecules.
Electron Configuration and Ionisation Energies Quick Checks
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Electron Configuration and Ionisation Energies Quick Checks

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Four worksheets to check student’s understanding of electron configuration of atoms, ions (including transition metals) and ionisation energies. Each has 4-5 questions. These could be used as starters, plenaries or as a quick homework task for self-assessment. Answers included.
GCSE Chemistry Elements, Compounds and Atomic Structure Starters, Plenaries and Short Activities
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GCSE Chemistry Elements, Compounds and Atomic Structure Starters, Plenaries and Short Activities

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This resource contains 54 different Chemistry lesson starters, plenaries and short lesson activities for GCSE Chemistry. They would suit all GCSE Chemistry courses which cover elements, mixtures and compounds, atomic structure and sub-atomic particles, isotopes, electronic arrangement, calculating relative atomic masses, ions and charges, and writing and balancing equations. These worksheets were designed for the AQA Chemistry specification for C1 Atomic Structure and the Periodic Table. There are four identical copies of each activity per A4 page to allow students to glue the small worksheet into an A5 exercise book and still have room to complete working out on the same page.
3.3.9 Name Five - Organic Nomenclature Quick Checks
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3.3.9 Name Five - Organic Nomenclature Quick Checks

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Four worksheets to practice the nomenclature of organic compounds up to and including those in specification points 3.3.1 to 3.3.9 of AQA A level Chemistry. They are best used as starter activities. Answers included.
AQA A-level Chemistry Redox Titrations Exam-Style Questions
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AQA A-level Chemistry Redox Titrations Exam-Style Questions

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AQA A2 Chemistry Redox Titrations Exam-Style Questions including answers. These questions cover several different calculations involving manganate (VII) and dichromate (VI) ions with either Fe2+ ions or hydrogen peroxide. Calculations involve working out the percentage by mass of iron in a sample, calculating the number of waters of crystallisation (e.g. FeSO4.xH2O) and concentration of reagent used.
AQA GCSE Chemistry Atomic Structure and Periodic Table
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AQA GCSE Chemistry Atomic Structure and Periodic Table

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This bundle contains several resources for the first Chemistry topic of the new GCSE. It includes Atomic Structure, Balancing Equations, Elements, Mixtures and Compounds, Group 1 and 7 exam-style questions along with a higher and foundation revision question booklet to use as starters/plenaries over ten lessons to reinforce and revisit previous learning.
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.