A worksheet of challenging time-of-flight mass spectrometry kinetic energy problems. Inspired by the challenging questions in the new AQA specification specimen papers. Answers with working full included.

A collection of questions with worked answers on uncertainty (error) calculations in chemistry. These are based around calorimetry and include percentage uncertainty, absolute uncertainty and maximum and minimum values at the limits of the uncertainty range. Also included, finding percentage uncertainty from a graph. There will be more of these on the other required practicals in due course so please look out for them. Now part of a value bundle which includes all you need to prepare candidates for paper 3. Please see my shop for more tried-and-tested quality resources.

This set of 50 cards has been designed to challenge students understanding of the subject. Written for AQA, they are equally useful for other exam boards. A number of unusual chemical contexts is used to widen thinking. The questions themselves have 2 parts. Part 1 is a statement know as an assertion and part 2 is a second statement known as the reason. Either both are correct and the reason supports the assertion, both are correct but the reason is irrelevant to the assertion or either/both are incorrect. Now available as part of a synoptic revision resources bundle. Please see my shop for other tried-and-tested quality revision tools.

A set of multi-step organic synthesis questions written for AQA A-level chemistry but equally valuable for other boards. Answers included. Please see my shop for more tried-and-tested quality resources including a second pack of synthesis questions.

An adaptable card sort game to help candidates learn and understand all the mechanisms required for AQA A-level Chemistry. This resource can be used as a stand-alone tool to help candidates learn only those mechanisms required for the A-level only part of the spec or could be combined with my AS version to create a really challenging revision tool. There are 5 categories of card which allow the resource to be used in a number of ways. The first category shows the displayed formula of the starting material with the reagent, the second is the mechanism name, the third and crucial for understanding is the displayed formula of the intermediate. the fourth the displayed formula of the product and the fifth, the name of the product. The simplest forms include simple nomenclature or matching the mechanism name with the reaction. More challenging is to add in the reactive intermediates or alternatively remove the displayed formulae of the product to make matching the name of the product more difficult. Please see my shop for other tried-and-tested quality resources including the AS version.

A further set of multi-step organic synthesis questions written for AQA A-level chemistry but equally valuable for other boards. Answers included. Please see my shop for more tried-and-tested quality resources including a second pack (no 1) of synthesis questions.

An adaptable card sort game to help candidates learn and understand all the mechanisms required for AQA AS Chemistry. Written for the current spec (first teaching 2015) and including the new ones - dehydration of an alcohol and alkenes with steam. There are 5 categories of card which allow the resource to be used in a number of ways. The first category shows the displayed formula of the starting material with the reagent, the second is the mechanism name, the third and crucial for understanding is the displayed formula of the intermediate. the fourth the displayed formula of the product and the fifth, the name of the product. The simplest forms include simple nomenclature or matching the mechanism name with the reaction. More challenging is to add in the reactive intermediates or alternatively remove the displayed formulae of the product to make matching the name of the product more difficult. Please see my shop for other tried-and-tested quality resources including an A-level only version which can be combined with this AS game to help learn the mechanisms for the whole spec.

A collection of questions with worked answers on uncertainty (error) calculations in chemistry. These are based around standard solutions and titrations and include percentage uncertainty, absolute uncertainty and maximum and minimum values at the limits of the uncertainty range. Also included, a comparison of 2 titrations, one without dilution and one with. There will be more of these on the other required practicals in due course so please look out for them. Now part of a value bundle which includes all you need to prepare candidates for paper 3. Please see my shop for more tried-and-tested quality resources.

A number of unfamiliar organic molecules ( as well as sulfuric acid and a transition metal complex) are presented and the teacher encourages student to ‘say something intelligent’ about the structure. Functional groups, RFM, IR, nmr, acidity/bacicity, what types of reactions it is expected to undergo, mechanisms for those reactions, fragments that could by synthesised etc etc. The idea is to build as many topics into the molecule as possible and stretch links between topics. This resource is available as part of a bundle. Please see my shop for more tried-and-tested quality resources.

Sequenced photos on a powerpoint for pupils to practice describing a method for all 6 required practicals of trilogy chemistry. One slide for each practical. Works equally well as worksheets or teacher-led discussion from a projector. Please check out my shop for more tried and tested quality resources.

A useful resource for candidates of all abilities to help them learn the keywords and the definitions required in chemistry in order to communicate accurately with. Can be used with all exam boards but specifically written for AQA. Please see my shop for more tried and tested quality resources.

A collection of questions (and answers) on the shapes of less familiar molecules and ions. Useful for stretching the more able when the easier examples of water, ammonia etc have been covered. Please see my shop for more tried-and-tested resources.

This bespoke resource is excellent for the teaching and learning of NMR spectra. Students use the pre-drawn scale and set of peaks (singlets, doublets, triplets and quartets) to construct the spectrum of the set of target molecules before checking them against the answers. The students learn how the spectrum comes about before then moving on to interpreting spectra in later lessons. They learn how fragments such as CH3CH2 lead to triplet and quartet patterns, CH2CH2 to triplet, triplet etc. In practical terms, for group work these are best blown up onto A3 and laminated so they can be used over and over, but they work equally well on A4 with an individual who needs to work independently on the topic.

This pack contains 50 cards which are designed to be printed onto A4 or A5 card and work equally well as laminates or simply project them on the wall. Many of these stretch and challenge questions have multiple answers and the resultant discussion requires candidates to draw on many aspects of the subject before arriving at the correct answer. Answers and hints are included to encourage direction towards the solution. Use with individuals or small groups. Please see my shop for other tried-and-tested quality resources.

Practice drawing the important bit - the curly arrows and intermediates on these standard mechanisms from AS AQA chemistry while cutting down the time spent copying out structures of reactants. Repetition can work well when learning the mechanisms so print multiple times or laminate and draw on them with a non-permanent marker. Answers are provided so work can be checked. Please see my shop for other tried-and-tested quality resources.