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(based on 18 reviews)

I am a Science and Chemistry teacher focused on Cambridge IGCSE and AS/A. I am also heavily involved in the National Chemistry Olympiad program. By way of background I have a PhD in inorganic chemistry and entered teaching after 13 years in the food industry. I guess I am a bit old fashioned - I don't use twitter and I have no idea what instagram or Pinterest are......but I love my subject and I love working with students.

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I am a Science and Chemistry teacher focused on Cambridge IGCSE and AS/A. I am also heavily involved in the National Chemistry Olympiad program. By way of background I have a PhD in inorganic chemistry and entered teaching after 13 years in the food industry. I guess I am a bit old fashioned - I don't use twitter and I have no idea what instagram or Pinterest are......but I love my subject and I love working with students.
Chemistry: weak acid-base and difficult buffer calcs-1
DrogchemDrogchem

Chemistry: weak acid-base and difficult buffer calcs-1

(0)
This resource contains 9 pages of detailed notes and worked examples as well as a 2 2-page worksheets that contains some straight forward to difficult (using a quadratic equation) pH calculations. The detailed notes work though a variety of scenarios and some of the associated misconceptions. The notes would be useful for both new chemistry teachers and students. The problems will be suitable for A level students or those wanting to trial for the National Chemistry Olympiad competition. Other problem worksheets re also available at Drogchem. With all the best intentions in the world, mistakes do get made. Please tell me if there is an error and I will correct it and organise to send you a corrected copy. Key words: buffer, acid, base, acidity constant, pH calculations.
Organic Chemistry (AS or IB): Esters and organic transformations worksheets
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Organic Chemistry (AS or IB): Esters and organic transformations worksheets

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This resource consists of 3 worksheets: a 4-page and two 2-page worksheets (and answers). Students are asked to complete reaction schemes, draw and/or name molecules and short answer questions. The focus is on amides, esters and some of their organic reactions. This resource would suit students doing AS, IB or organic chemistry to a high level.
Science: Ice cream topic -designing, making and tasting ice cream (12-15 year old)
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Science: Ice cream topic -designing, making and tasting ice cream (12-15 year old)

(0)
This is the perfect topic to end the year on. It is fun and the students don't even realise there is a serious aspect to it: healthy eating, analysing food etc. You can adjust the depth and type of learning outcomes depending on the age group (eg. if it is an older group I always include a section on microbiology and we swab surfaces and check for cleanliness, learn about how factories manage food safety etc). This topic encourages student-led learning and there is considerable enthusiasm in the classroom. You do not need to have an ice cream machine, although I did and there is often someone in the class who does have one). I have written up a rough guide on how the 1-2 weeks would go but I found that the students really enjoyed their own research and in some years this took longer than I originally had planned for. This resource includes: notes for teacher, a base ice cream recipe, ice cream in a bag activity, taste testing template, energy calculation activity and some other ideas (eg poster design). It is a lot of fun and will save you that painful end of year "now what do we do"?
Calculations - titrations, back titrations, empirical formulae and waters of crystallisation
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Calculations - titrations, back titrations, empirical formulae and waters of crystallisation

(0)
This resource consists of 4 worksheets (13 pages of problems in total). The problems require students to write balanced equations (some are redox) and use calculations to solve the problem. The problems would suit AS and A2 students or those wanting to compete in National Chemistry Olympiad competitions. (18 Jan2018 post script: an additional 2 w/s have been added that focus only on waters of crystallisation).
Chemistry: Buffer calculations and interpretation of titration curves (A2 and IB students)
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Chemistry: Buffer calculations and interpretation of titration curves (A2 and IB students)

(0)
This resource consists of 9 pages of notes and calculation examples and a three 2-page worksheets to help the teacher or student grapple with buffer calculations. The target is A2 and IB students. The wk/s 4 and 5 (and answers) are essentially a titration on paper where a specific weak acid (or base) is gradually titrated (each problem a new calculation) to show the student the effect the addition of OH ions has on the final pH. Itis a chance to repeat the same calculation multiple times. The format ensures students get to practice on the same system and therefore minimise cognitive overload. Students are encouraged to think about what species are in solution and what part of the titration curve each calculation relates to. I also encourage a novel way of setting out the calculations, which I (and my students) believe minimises potential mistakes.
Chemistry: Easy and difficult weak acid-base calculations
DrogchemDrogchem

Chemistry: Easy and difficult weak acid-base calculations

(0)
This resource contains 9 pages of detailed notes and worked examples as well as a 2-page worksheet that contains some straight forward pH calculations as well as some very challenging calculations due to the weak acid not being so weak. The detailed notes work though a variety of scenarios and some of the associated misconceptions. The notes would be useful for both new chemistry teachers and students. This resource would be suitable for A level students. It will also be useful for those interested in continuing in chemistry or entering the National Chemistry Olympiad competition. Key words: buffer, pH, calculation, acid, base
Chemistry: Scientific English for Korean Students - Learning the English words used in Chemistry
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Chemistry: Scientific English for Korean Students - Learning the English words used in Chemistry

(0)
This resource contains a number of worksheets and activities that will help Korean students learn Chemistry in an English school environment. It includes: * 3 page dictionary of key English chemistry science words (both Korean and English). Parts of this list have been broken down into smaller themed lists to act as worksheets for the students (eg periodic table; acids and bases). * A Korean period table * Metals/non metals worksheets (with pictures to describe properties and a practical activity) * Equipment worksheet * A funworder requiring the student to find the English element * Some cloze style activities * A crossword and other starters. Instruction sentences are also included. These resources have been used for 12 months and adjusted based on feedback from the students. Please leave feedback on how they can be improved or if you find any mistakes.
Chemistry: Lewis structure and molecular shape problems
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Chemistry: Lewis structure and molecular shape problems

(0)
This resource has a set of notes with worked examples to explain how to determine Lewis structures, molecular shapes and formal charges. The accompanying worksheets (and answers) use these skills to predict shapes and reason the bond angles. Some problems are based on the comparison of two molecules. ws2 problems are more difficult than ws1 and would suit students who are doing A level chemistry and who want to be challenged or are interested in competing in the National Chemistry Olympiad competition. This resource has combined material from 3 previously available resources. If you find any mistakes please make contact with me and I will correct and send an updated version.
AS Organic Chemistry for Cambridge (and IB): alkanes, alkenes, acids, esters, mechanisms etc
DrogchemDrogchem

AS Organic Chemistry for Cambridge (and IB): alkanes, alkenes, acids, esters, mechanisms etc

(0)
This resource consists of a series of w/s with themed problems (and answers). There are 20 pages worth of material (2-4 page w/s) as well as the CIE learning objectives (2016) and the accompanying ppt slides (69 slides). Problems include naming and drawing compounds, writing mechanisms (SN1 and SN2), elucidating reaction schemes, geometric isomers, unknowns and definitions etc. updated 9 Nov (pptn was missing)
Chemistry: test - spectroscopy: IR, 13C and MS and a 5-page 13C nmr worksheet (14 spectra)
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Chemistry: test - spectroscopy: IR, 13C and MS and a 5-page 13C nmr worksheet (14 spectra)

(1)
This bundle has been updated (29 Sept 16) to include: * a 13C nmr spectra assignment worksheet (14 spectra; 5 pages long) and answers to help prepare for the spectroscopy test (see below). * a 1 hour 8-page test (or work sheet). There are 3 questions built up of multiple parts. Each requires the student to use information from Infra Red, Mass Spectrometry and C-13 NMR spectra to elucidate the different compounds. Answers are included. Students are expected to give evidence to support their assignments. This test would be useful for A-level students. Note: This mark scheme is specific to the NZ National examination program and involves some holistic marking and grading rather than /100. The test takes about 1 hr and the focus is on the student being able to write full answers and justify their assignments. It is important that the user adjust this resource to fit with their own national assessment. Over the coming months further tests/work sheet versions will be developed, which will allow users to cut and match questions or be longer to meet end-user needs. The 3rd document consists only of answers (cf. the 2nd where the answers are built into the test/work sheet).
Chemistry for Chinese students learning English: words, terms and useful resources
DrogchemDrogchem

Chemistry for Chinese students learning English: words, terms and useful resources

(0)
This resource contains a number of worksheets and activities that will help Chinese students learn Chemistry in an English school environment. It includes: * 3 page dictionary of key English chemistry science words (both Chinese and English). Parts of this list have been broken down into smaller themed lists to act as worksheets for the students (eg periodic table; acids and bases). * A Chinese period table, * Metals/non metals worksheets (with pictures to describe properties and a practical activity) * Equipment worksheet * A funworder requiring the student to find the English element * Some cloze style activities * A crossword and other starters. 2-Sept-16: an updated list of Chinese words has been added with some small corrections.
Chemistry: Periodic table made fun (12-15 year olds) - material for 3-4 weeks worth of teaching
DrogchemDrogchem

Chemistry: Periodic table made fun (12-15 year olds) - material for 3-4 weeks worth of teaching

(2)
This resource consists of all of the material a teacher would need to teach a 3-4 week topic on this most delightful of topics: the Periodic table. Most of the focus is on the PT trends, how it can be used to predict a property of an element or charge on an ion. The activities have been tried in my class over the past few years and the students feedback and improved grades suggest they add value. My bug bear as a Chemist is that the PT is often taught as "first 20 by rote" with little time spent showing students how they can use the PT to help answer questions or solve problems. The topic covers subatomic particles, electron configuration, formation of ions, compounds/molecules, reactions of group 1 and 2 metals with group 6 and 7 non-metals and the tests for H2, O2 and CO2. Resources include worksheets, cloze activities, starters, projects, identifying equipment activity and short tests. The “notes for teachers” outlines how I teach this subject for both low and higher ability students along with ideas of the projects I set the students. Some documents contain more than 1 worksheet or activity and some worksheets are 2 pages long. Additional slides have been included on balancing equations if the class is stronger. Either use them in this course or save for the following year. Some of this material appears in other resources at Drogchem's shop (eg balancing equations and funworders). Thank you to everyone that bought this resource. If you get a spare 2 minutes could you leave some feedback? It is the only way I will know whether it meets your needs or what I might need to do to develop it further.
Chemistry: Electrochemistry - REDOX and electrolysis material for AS-A2 students
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Chemistry: Electrochemistry - REDOX and electrolysis material for AS-A2 students

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This resource pack consists of material that will be covered in the AS and A2 program. It includes + Power point (53 slides) covering: oxidation number and balancing REDOX equations revision, REDOX calculations, batteries, Nernst equation and electrolysis. + Summarised CIE learning objectives + Student notes - REDOX (8 pages) that summarise the slides + Student notes – balancing REDOX equations + 7 -11 work sheets depending on whether double sided or a booklet (19 pages of problems) and answers. + Practicals (4) Buying this bundle will mean buying material used over two years so hopefully it is save you time and be viewed as value for money. Please note, some of these resources are already available on TES but as smaller bundles. 17 Aug 16: A recent typo was found on the electrolysis w/s and it has been updated (Q4, IV).
Science words and activities for Chinese students learning English as a second language (14-18 yrs)
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Science words and activities for Chinese students learning English as a second language (14-18 yrs)

(0)
Thank you to all those who have bought this resource. Please leave feedback as it helps me better align the material to student needs. This resource bundle (85) combines material from multiple resources focused on Science for Chinese students learning English as a second language. The purpose of the bundle is to provide material for teachers who have native Chinese speakers in their class. The students are regularly put into other subjects (eg Science) as part of the experience yet often with limited material that targets both language and content knowledge. This material has been trialed on 20 students over 12 months and refined over the year. This bundle includes material in biology, physics, chemistry and astronomy. Specifically, * A list of translated general science question phrases typically asked in worksheets and exams * A list of useful describing words when filling out worksheets and exams * Chemistry: translated list of words (fill in Chinese or English versions), works sheets covering periodic tale, electron configuration, acid/base, PT trends, fun worders, cross word puzzles, cloze-style activities, short answer questions, True/False activities, 15-20 minute tests, PT, who am I activities and a metal-non metal practical activity. * Biology: translated list of words (fill in Chinese or English versions), anatomy diagrams for labeling, plants/flower diagrams for labeling, short answer questions, ecology x-wrds, poster activity, classification activity. * Physics: translated list of words (fill in Chinese or English versions), light and sound x-word, graph w/s, calculation w/s, forces w/s, pressure w/s and power w/s, mechanics w/s * Astronomy: translated list of words (fill in Chinese or English versions), short answer questions, word finder. Admittedly, there is slightly more chemistry resources than physics. The students told me that chemistry and biology (and the associated terms) were their biggest issue. Please leave me feedback to let me know what and how I can improve the bundle or tell me of material you are searching for.