This is a lesson on using oxidation numbers to determine if a reaction is a redox reaction, disproportionation reaction or symproportionation reaction (opposite of disproportionation). Symproportionation is included to develop understanding and is not required by AS Chemistry specifications. The starter is the engaging visual elephant toothpaste demo. Answers on slide 17 are colour coded and animated. I have another lesson on TES where students calculate oxidation numbers. Please rate this resource and leave feedback.

This lesson forms part of an AS chemistry equilibrium scheme of work and follows on from two lessons on equilibrium reactions and writing expressions for Kc. The lesson starts with a recap of Kc. Students then learn how to work out the units for Kc. Please note that from experience I have found that weaker students (grade C downwards) struggle with this so please take a lot of time to check that students feel comfortable and confident. A GSCE indices questions worksheet has been provided to support weaker students. The lesson then moves on to explaining the compromise conditions used to make ammonia in the Haber process. I show the Daniel D Dulek TED talk video here. It is absolutely excellent and stretches the students. Video questions are provided. The lesson concludes with students calculating Kc. The video is YouTube embedded so please download this video before the lesson as many schools do not allow staff access to YouTube from a school computer. Please rate this resource and leave feedback.

This is a fun GCSE Chemistry tarsia for revision of transition metals and is suitable for more able students. There are 16 triangles with 18 pairs of questions and answers that make a parallelogram. I suggest that the A4 tarsia is printed on card and then the outline is cut out. Students can then quickly cut out the individual triangles. Included are the following topics: transition metal uses, transition metal properties, magnetic metals, catalysts, aqueous copper ion colour, pH of iron hydroxide vs iron nitrate. The tarsia software is free to download but there is not currently a version for Mac computers.

This is a fun GCSE chemistry tarsia for revision of rates of distillation. There are 16 triangles with 18 pairs of questions and answers that make a parallelogram. I suggest that the A4 tarsia is printed on card and then the outline is cut out. Students can then quickly cut out the individual triangles. Included are the following topics: apparatus, bonds between particles, order of evaporation, pure vs impure substances, naming fractional distillation, naming steam distillation, change of state. The tarsia software is free to download but there is not currently a version for Mac computers.

This is an AS Chemistry lesson on calculating which chemical is in excess in a reaction. Also students calculate an enthalpy change using a graphical method for reactions that happen slowly and therefore heat is lost to the surroundings when recording the temperature rise. The graphical method involves estimating the actual temperature increase. There is opportunity to use hand warmers for the starter activity and reacting magnesium with oxygen (i.e. in air) as a main activity. Please rate this resource and leave feedback.

This is a fun GCSE Chemistry tarsia on chemical formulae. There are 16 triangles with 18 pairs of questions and answers that make an equilateral triangle shape. I suggest that the A4 tarsia is printed on card and then the outline is cut out. Students can then quickly cut out the individual triangles. Included are the following chemicals: calcium carbonate, hydrochloric acid, water and carbon dioxide. The 'fjsw' file can be opened and modified with tarsia software. The tarsia software is free to download but there is not currently a version for Mac computers.

This is a fun yet challenging GCSE Chemistry tarsia for comparing different theories of atomic structure. There are 18 triangles with 21 pairs of questions and answers that make a kite shape. I suggest that the A4 tarsia is printed on card and then the outline is cut out. Students can then quickly cut out the individual triangles. Included are the following topics: names of scientists such E.R. Rutherford and J.J. Thomnson who played important roles in developing atomic theory, isotopes, electron shells and the periodic table, charge on subatomic particles and comparisons of the main models. The 'fjsw' file can be opened and modified with tarsia software. The tarsia software is free to download but there is not currently a version for Mac computers.

This is a fun GCSE chemistry tarsia for revision of combustion. There are 16 triangles with 18 pairs of questions and answers that make a parallelogram. I suggest that the A4 tarsia is printed on card and then the outline is cut out. Students can then quickly cut out the individual triangles. Included are the following topics: formulae, complete combustion, incomplete combustion, carbon neutral, products of combustion. The software is free to download but there is not currently a version for Mac computers.

This is an engaging AS Chemistry lesson on the group 1 and 2 nitrate and carbonate decompositions and has grades C to A. The starter is fire writing using sodium nitrate solution. Please read CLEAPPS safety and Royal Society of Chemistry advice on this compound and the practical. For grade C students describe the reactions. For grade B students explain the decompositions and for grade A they evaluate their answers. An extra activity such a diamond 4 could be included for students to rank their answers. Please rate this resource and leave feedback.

This is a lesson designed as part of the Edexcel A2 unit 4 scheme of work on carbonyl compounds. In this lesson students can carry out a practical (grade C) to compare the oxidation of primary, secondary and tertiary alcohols. The oxidation and distillation of a primary alcohol is demonstrated. Students then develop their understanding (grade B) by considering which type of oxidant would be best to oxidise geraniol (rose scent) to germinal (lemon scent). Geraniol could be used in the demo. The grade A task is writing organic redox half equations. Please rate this resource and leave feedback.

This is a fun Chemistry tarsia for revision of rates of distillation. There are 16 triangles with 18 pairs of questions and answers that make a parallelogram. I suggest that the A4 tarsia is printed on card and then the outline is cut out. Students can then quickly cut out the individual triangles. Included are the following topics: apparatus, bonds between particles, order of evaporation, pure vs impure substances, naming fractional distillation, naming steam distillation, change of state. The tarsia software is free to download but there is not currently a version for Mac computers.

This is a lesson on the greenhouse effect for the 2016 AQA specification. The lesson starter is a matchup activity that is printed and handed to students as they enter the classroom. Required learning for this activity is knowing the percentage of gases in the atmosphere and an overview what the greenhouse effect is from KS3 science or geography. More able students will know for the starter that UV is produced from the Sun and the earth emits IR. The lesson then discusses what IR radiation is using an exam of hair curlers. Students then use PHET simulation laminates to compare how greenhouse gases affect the amount of IR being 'trapped' (absorbed by greenhouse gases and re-emitted back to space and the surface of the Earth). They count the number of yellow dots (representing photons of UV light) and red dots (representing photons of IR light). The laminates could be colour printed and laminated in A4 with each table (4 to 6 students) receiving one complete set of laminates. The amount of UV photons remains fairly constant but the amount of IR photons increases as the amount of greenhouse gases increases. Please rate this resource and leave feedback.

This covers balancing equations skills for GCSE. This is lesson 2 in the atomic structure scheme of work for the AQA 2016 specification. The lesson starts with a recap of elements, compounds and formulae (lesson 1 in the AQA atomic structure scheme of work). The lesson then has a demo of the sodium and chlorine reaction. Students are then introduced to the rules for balancing equations. They can balance equations using the particle diagrams method that is included in the main lesson. Alternatively students could use the column method or use boiled sweets that are included separately. The challenge is to balance equations that use brackets and to balance half equations. Please rate this resource and leave feedback.

This is a lesson graded C to A on infrared spectroscopy. Expected prior learning is functional groups and how to draw organic molecules such as carboxylic acids. Students could write on the laminated sheets using whiteboard pens. The lesson provides extensive differentiation. The starter is a crossword created using a program on The Teachers Corner and IR data used is from the NIST Chemistry WebBook. Both of these resources are referenced at the beginning of the lesson. A data sheet needs to be provided as this is a lesson that uses the Edexcel GCE Chemistry data book. Please rate this resource and leave feedback.

This is a KS3 chemistry tarsia for revision of elements and compounds. I suggest that the A4 tarsia is printed on card and then the outline is cut out. Students can then quickly cut out the individual triangles. Included are the following topics: number of atoms in a molecule, number of elements in a compound, definition of elements and compounds.

This is a lesson on entropy for Senior High School Chemistry that has been thoroughly planned and resourced. The lesson starts by getting students to classify reactions as endothermic or exothermic. This is required knowledge so please read through these before the lesson and make sure that students have covered this content. This starter activity could be printed and laminated to be used as a card sort. The concept of entropy is introduced along with the first and second laws of thermodynamics. A stack of Jenga bricks or a stack of cards could be used to illustrate that disorder is a more likely arrangement (gases) than order (solid). The custard powder combustion demo is used to illustrate that entropy changes in the system help predict whether a reaction is spontaneous (whether it happens). Details of how to carry this out can be found online at the UK Royal Society of Chemistry wiki and other websites. Students then are introduced to the three formulae needed and complete a worksheet that I have created where they calculate entropy of a system, entropy of the surroundings and total entropy. This is used to predict whether the reactions happen (i.e. whether there is a positive value). Note that balanced equations have not been provided and students at this level should be capable of writing these and sharing them with the class. Markschemes are provided for the entropy calculations. The lesson ends with a comparison of the importance of entropy and enthalpy. Please rate this resource and leave feedback.

This is a Senior High School Chemistry lesson on advanced titration calculations for a very able class. It walks students through the steps in carrying out a back titration for weakly soluble bases.

This lesson forms the second lesson in the AQA 2016 specification 4.7 organic chemistry scheme of work and comes after lesson 1 crude oil. The lesson is designed to develop independent practical skills - something that is often developed at Key Stage 3 when there is more curriculum time but is missed out at GCSE in order to cover all of the subject content needed for the exams. The lesson begins with considering the properties that a good fuel should have. It is worth pointing out to students that these are the main properties of hydrocarbons. Alkanes and alkenes are covered later in this scheme of work so reference is not made to them in this lesson. Students then read two sources and choose one of them to write a summary on their method sheet. They then carry out a risk assessment of the method that they have chosen. The practical that they do is using a pipette with a small hole in the side - these need to be prepared in advance by the technicians. Students put the pipette in the oil and then cover the hole as they lift up the pipette. They then open the hole (move the finger of the way) and time how long it takes for the oil to move from 3m to 1ml. The lesson finishes with an exam plenary question (markscheme is provided). It is suggested that water baths are used to heat the jars or beakers of vegetable oil. Please rate this resource and leave feedback.

This is a comprehensive lesson that provides an introduction to enthalpy changes and serves as the first lesson in a scheme of work on energetics at A level. The lesson starts with a recap of GCSE chemistry then moves on to defining enthalpy changes. Students learn the definitions of each type of enthalpy change for homework due in the following lesson. Students then consider energy level diagrams for the grade C task. For the grade B task students predict enthalpy changes using bond dissociation data. There is a worked example of this using the Haber process. The grade A task involves converting enthalpy change values into Joules per gram values that might be used in calorimetry. Scaffolded resources and a markscheme are provided. Please rate this resource and leave feedback.

This lesson is the third in the atomic structure scheme of work for the 2016 AQA specification. The two previous lessons are on elements, compounds and mixtures and balancing equations. The theme of the lesson is separating cannabis chemicals in order to extract TetraHydroCannabinol (THC). This is part of a group of chemicals called 'cannabinoids' and is used as an oral spray called Sativex that treats multiple sclerosis. The lesson starts with students listing 3 reasons for and 3 reasons against legalising cannabis. There is a YouTube video showing a 3 minute BBC News report that is embedded. The link is included in the PowerPoint. Students then use the separating mixtures trump cards to state what method they would use for each stage of extracting THC. They carry out a RSC practical to extract 'THC' (it is in fact a combination of chemicals) using a pestle and mortar and the solvent propanone. Though not included in the RSC practical they could filter the solvent to remove any solids. They then use paper chromatography to see whether their sample has a pure chemical. If the chemical is pure there will be a single spot visible on the chromatogram. Students could then dry their chromatograms and calculate the Rf value of their spot. Finally a higher level question is included at the end where students consider the effect of using different solvents. Please rate these resources and leave feedback.