This resource focuses on the scientific words used in a typical physics class as well as a number of related worksheets (eg. calculations, a crossword, cloze style activity, English short answers). These will be useful for Chinese students studying abroad as international students or teachers in China who wish to teach their students the English words typically used in a physics lesson. Answers are also provided. The feedback from the classroom has been very positive and some colleagues from other schools have asked to use these resources for their Chinese International students. If there are specific topics you would like please tell me as it is likely they are currently being developed / or used.

This resource is a test that covers various aspects of periodicity: sub atomic numbers, electron configuration, assigning charge to ionic species, some electrolysis questions and a few word equations (eg. photosynthesis) requiring symbols equations. The test takes about 1 hour.

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

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 in an Honors or AP program or students wanting to compete in the 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.

This resource contains 2 worksheets (4 pages) of crystallisation problems (and answers). The exercises would be suitable for students wanting to do Honors or AP.

This resource contains 2 worksheets (6 pages of varying problems) and answers. ws1: calculations using the equation v = d/t including rearrangement. Some problems ask the student to convert different units (eg seconds to hours). ws2: calculations using the equation a = v/t. The problems include interpreting graphs, drawing graphs, calculations and unit conversions. It is 4 pages long so fits a fold A3 page. The problems would suit students interested in AP or honors. All questions are based on metric units.

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 resource includes a colour-coded power point pack (51 slides): the first half focuses on inheritance and how information is ultimately coded into proteins. The 2nd half covers sexual vs asexual reproduction, genetic variation, mono-hybrid inheritance, punnet squares, pedigree charts and natural selection. The slides are kept simple and are not cluttered with lots of words. The user can delete slides not required for their specific course. My students tell me the slides are easy to annotate and are very good for exam preparation. A set of learning objectives is given as well as three 2-page problem sheets that focused mainly on punnet squares and pedigree charts (answers provided). Two of the problem sheets can be bought separately from this shop ( "Biology: punnet square problems and interpretation of pedigree charts").

This resource contains some pH worked calculations and notes. The 2-page work sheet has weak acid and weak base problems as well as 2 misconception questions are also included to encourage students to be able to explain a concept without the need of a calculator. Answers are provided. The detailed pH calculation notes are also found in the other pH calculation resources at Drog-chem’s shop.

This resource consists of 2 worksheets and answers. Each takes about 40-60 minutes to complete so they are useful for finishing off a lesson or as homework. WS1 starts be getting students to practice rearranging equations and then to apply the equations to solve for one unknown.. The worksheets are suitable for students new to the use of and interpretation of the equations V=IR, P=IV and P=W/t. Some short answer questions are included in WS2 that ask students to compare different components in series and parallel circuits (eg. bulbs and degree of brightness). The questions are designed to get students thinking about why something is observed (cf just calculations). Key words: calculations, electricity, power, watt, volts, current, resistance, series, parallel, ohm, amps, energy Other resources of greater difficulty will be available after they have been proof-read.

This resource consists of 3 worksheets (some double sided) and answers. The first is a starter activity (T or F) and takes about 10-20 minutes to complete. The elements-compounds-molecules and mixtures worksheet has a variety of exercises. The states of matter worksheet largely focuses on a number of short answer questions based on every day scenarios. There are also some diagrams to complete. The resources target students who are in year 8-10 (13-15 years old) depending on curriculum.

This resource consists of 4 work sheets and answers. It would suit students aged 14-16 learning to balance word and symbol equations. WS1 contains 20 word and symbol equations involving the reaction of metals with oxygen, chlorine, water or an acid. WS2 contains 20 word and symbol equations involving reactions between metal salts (carbonates, hydroxides and oxides) and acids WS3 requires the students to complete acid base word and symbol equations WS4 requires symbol equations for reactions with metals. Some of these resources appear elsewhere.

This worksheet (and answers) contains 8 empirical formula problems. It would suit students wanting to do Honors or AP. Key words: calculations, molecular formula, empirical formula,

This resource consists of some general REDOX notes and 1 work sheet with 6 hard-to-difficult REDOX reactions to balance. The difficulty is due to the fact the students must first convert word equations into symbols. One problem requires them to balance under alkaline conditions and the metal product is not immediately obvious. The problems introduce the students to uncommon reactions where the acid itself is converted to products other than hydrogen gas. This worksheet would be suitable for students doing AP, Honors or wanting to take part in the National Chemistry Olympiad competition.

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. This resource would suit students who want to progress in the Honors program.

This resource has a set of notes with worked examples to explain how to determine Lewis structures, molecular shapes and formal charges. The accompanying worksheet uses these skills to predict shapes and reason the bond angles. Some problems are based on the comparison of two molecules.

This resource consists of notes and worked examples to show how to establish a molecule's Lewis structure and molecular shape. The problems are more difficult than ws1 and would suit students who are doing Honors, AP or are interested in competing in the National Chemistry Olympiad competition.

There are two worksheets (with worked answers) in this resource. WS1 focuses on word equations and limits reaction to those of oxides, hydroxides and carbonates. Notes are also provided. The intention is for students to get used to the idea of always writing down the salt and that water is the other product. WS2 asks students to balance the symbol equations. The equations are limited to acids reacting with oxides, carbonates and hydroxides. Both worksheets are also part of a larger resource called "Chemistry: balancing equations involving metals and their salts". This resource will suit students learning about balancing equations for the first time.

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