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.

This resource consists of 2 double-sided worksheets made up of short answer questions (and answers) relating to atomic structure; in particular, ionisation energy, atomic and ionic radii and electron affinity. The questions would suit students studying AS-A2 or IB chemistry and students wanting to compete in a National Chemistry Olympiad competition. The students are required to write structured answers rather than limited 2-3 word answers therefore encouraging writing skills and building their understanding of the periodic table. 5Feb17: small error found and fixed.

This practical gets students to measure the rate of reaction when a thiosulfate solution is mixed with hydrogen peroxide. The resource includes a brief background to the experiment, a sheet to record data and some instructions for the Technician to help make up the solutions. This resource can be used for younger students to improve their experimental technique and interpretation and graphing skills (leave out the chemical equations) or for A2 Cambridge, Honors or AP students who wish to measure more detailed reaction kinetics. Some errors were found and have since been addressed (2016) Key words: kinetics, reaction rate, collision theory, iodine clock reaction, experiment

This worksheet (and answers) contains 8 empirical formula problems and answers. It would suit students aged 16-18 yrs and those in Cambridge IGCSE or AS courses. Key words: calculations, molecular formula, empirical formula,

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.

This test is about 1 hours long. It includes questions about calculating oxidation number, observations and balancing half and full REDOX equations. Answers are included. This test would be useful for students doing IGCSE and AS chemistry. 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.

There are 2 worksheets (and answers) as well as notes and worked examples (ws2). The resources would suit students aged about 14-17 years old depending on the course. WS2 is for more advanced students. WS1 has 2 pages of questions where the student has to choose whether a reaction is either endothermic or exothermic, draw and label an energy profile. There are also some simple calculations to determine the amount of energy given off from a known mass of an organic compound. WS2 contains notes, worked examples and 10 problems (and answers) focused on the equation Using q = mCΔT and Hess's law. The problems will be useful for students enrolled in Honors, AP or those who would like to sit the National Chemistry Olympiad competition. The problems are of straight forward to moderate difficulty. 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: Hess's law, thermochemistry, enthalpy, heat, thermodynamics, calculations.

This worksheet has 2 pages of problems (and answers) which require a Lewis structure and a molecular shape. Some of the questions ask students to compare molecule bond angles and explain why they differ. A set of notes with examples is included. This resource would be useful for students enrolled in Honors or AP.

This worksheet has bond enthalpy and lattice energy calculations and would be suitable for A level students. Key words: Hess’s law, bond enthalpy, Lattice energy, calculations.

This resource consists of 7 worksheets made largely of diagrams that require labeling (heart, lungs, endocrine, digestive and the eye), some questions that require short answers and a cross word. This is that resource you struggle to find: some diagrams that can be labelled and then some questions to follow. This resource would suit a range of students depending on the national curricula (eg. IGCSE).

This experiment gets students to compare pH titration data collected using different indicators. It shows the importance of choosing the correct indicator. The experiment(s) are easily carried out in 50 minutes and students can do up to 8 titrations during the class. Data is reported back to the teacher and the results shared with the wider class. Student feedback suggests this is a very useful practical and the repetitive nature of the experiment allows them to fine-tune their experimental skills. The practical will be useful for those studying acid-base chemistry and buffer systems. Students enrolled in AS-A2 Cambridge or A level courses would find this practical beneficial. Notes for the teacher are also included Key words: buffer, acid-base, equivalence point, buffer zone, practical, pKa, indicators.

This resource consists of 8 worksheets (and answers) that focus on the key words that are used when describing plants: cells, leaves and flowers. There are two versions of each resource requiring either a Chinese word or an English word (usually 1-2 pages of words). There are also resources that require the student to label the diagram using English words. The feedback from the classroom has been very positive and the resources are being reviewed for use in other schools. If there are specific topics you would like please tell me as a number of other resources are currently under development and review.

This resource consists of 6 pages of problems (questions, mechanism and 'complete the reaction scheme' questions) targeting the A2 Cambridge program. Answers are provided. The problems and answers have been checked but if there are any errors or questions, please get in touch with me and I will address them. If you would like a certain type of worksheet please contact me as I am working on other ones for my classes and I will reorder my efforts if I think it can be useful to others.

This resource consists of 5 pages of terms and expressions in Chinese and English that relate to the human body. Separate version require filling in the Chinese or the English word. Additional resources (and answers) specific to the heart, lungs, digestion, the hormone system such as as cross word puzzles, cloze style activities, diagram labeling are also given. Although these resources have been checked by a native Chinese speaker mistakes do happen. Please get back to me if you find an error. The feedback from my international class has been positive and these notes help the students.

This resource will be useful for older Chinese students who have started an English speaking physics program. The material would suit students at AS or A level. The resource includes 3 pages of key radioactivity words in both Chinese and English. These have been created into worksheets where the student puts in either the correct English or Chinese word. Room is made for the student to also write down definitions. One worksheet asks the student to fill in the blanks for a list of words but it is also designed for them to read silently, aloud (eg in pairs or in front of the class). There is also a 15 minute starter focused on sub atomic particles.

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.

This resource consists of 4 problems in which the student has to work out the % of different compounds in a mixture. They are challenging and would suit mathematically strong students who are enrolled in Honors, AP or who want to compete in the National Chemistry Olympiad competition.

This resource is two pages long and covers the following topics: atomic structure, balanced word and symbol equations, balancing a combustion reaction, interpreting electronic configuration, an electrolysis question (ZnBr2) and forming ionic compounds. It could be used as either a test or a worksheet. Answers are included. The level would be useful for entry level chemistry students

This resource consists of two 4-page worksheets (and answers). The first w/s asks the student to interpret some series or parallel circuit diagrams and calculate either I, V, R or P. The second starts with some simple calculations but finishes with short-answer questions in which the student needs to reason (rather than reach for the calculator) an answer. It encourages students to write WHY rather than just supply a simple number. If the buyer finds any mistakes please tell me and I will update the resources and send an updated version.

This resource consists of some general REDOX notes, which outline how to balance REDOX equations and 2 double sided worksheets (and answers). The exercises include oxidation number elucidation, balancing half equations and balancing full equations.