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 lesson for Senior High School Chemistry on electrochemical cells. It starts with students constructing a fruit cell and combing four of these cells to make a battery that powers a light bulb . These are made from a whole lemon, piece of clean copper, piece of clean zinc, electrical wires, crocodile clips and light bulb. This could be shown as a demo if there is not much time. Students offer explanations as to how this works. They are introduced to the theory behind how batteries work, what a half cell is and notation for writing half cells and E-cell. The hydrogen / H+ / platinum reference electrode is then introduced as a standard that is used to compare the voltage different half cells. Reinforce the idea that platinum is used because it a very unreactive electrical conductor. Students then use the electrode potentials table (go through this) to write the voltage and reactions for different combinations of half cells. This could be set as homework instead. The lesson finishes with an exam question plenary. Please rate this resource and leave feedback.

This is a thoroughly planned lesson on the production of ethanol by fermentation of glucose and hydration of ethene. It has differentiated resources and a variety of activities and exam question plenaries to check student understanding. There is an optional production of ethanol practical that could be included in this lesson or as a separate lesson. Students start by recalling the formulae for different substances then learn the symbol equations for the two methods of ethanol production. They then carry out a literacy activity where they sort the advantages and disadvantages of each method of ethanol production. The lesson concludes with an exam question plenary. The practical could be included before comparing the advantages and disadvantages of hydration versus fermentation.

This is an independent learning lesson on alloys for High School Chemistry. It is designed to promote independent learning and higher level thinking through role play, designing an aeroplane and justifying the choice of metals used by using data from a data table. The lesson starts by getting students to think about what three properties metals used to make the worlds fastest jet engined plane (SR-71 Blackbird) would need. Students could be shown a short video from YouTube to prompt their thinking and write their answers on post-it notes. They they then discuss what alloys are and could be asked identify the alloys in the metal trump cards pack (this would need to be printed in advance). They are then introduced to the 4 person role play task where they design an aeroplane. Limit their on this task to around 20 minutes. At the end they could either present their work or answer the 6 mark exam question at the end of the lesson. There is a student-friendly marking grid provided. The lesson menu is available for weaker students. Please look carefully at each of the resources provided before the lesson and decide which ones would best suit your group and length of lesson. Please rate this resource and leave feedback.

This is a thorough set of structured resources on using mass spectrometry to identify molecules. The starter is a fun Just a Minute literacy activity that recaps prior understanding of mass spectrometry. There is then a highly structured series of slides that discuss how bond enthalpy (bond strength) data can be used to determine which bonds in a molecule will break. Slide 14 (bond enthalpy data) can be printed as a handout for the students to use for the grade C task. The grade B/A task is where students identify molecules from their mass spectrometry spectra. The mass spectra to be identified can be laminated and students can annotate the laminates using whiteboard pens. The answers and a markscheme is provided on the PowerPoint. Please rate this resource and leave feedback.

This is a fun High School Chemistry tarsia for revision of rates of reaction. There are 16 triangles with 18 pairs of questions and answers that make an equilateral triangle. 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: symbol equations, factors affecting rate and rate graphs. The software is free to download but there is not currently a version for Mac computers.

This is a fun High School Chemistry tarsia for revision of calculating relative formula mass. 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: relative atomic mass of atoms and isotopes (isotopes are limited to isotopes of oxygen and hydrogen) and relative formula mass of different compounds. The 'fjsw' file can be opened and modified with tarsia software. The software is free to download but there is not currently a version for Mac computers.

This is a fun Middle School Chemistry tarsia for revision of metals and non-metals. There are 16 triangles with 18 pairs of questions and answers that make an equilateral triangle. 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: element symbols and properties of metals and non-metals. 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 High School Chemistry tarsia for revision of balancing equations. There are 16 triangles with 18 pairs of questions and answers that make an equilateral triangle. 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: reaction with oxygen, why we need to balance equations, a variety of balanced and unbalanced equations and number of atoms. The 'fjsw' file can be opened and modified with tarsia software. The software is free to download but there is not currently a version for Mac computers.

This is a fun yet challenging High School Chemistry tarsia for revision of the paper chromatography. 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: Rf value, adsorb, solvent, soluble and uses of chromatography. 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 High School Chemistry tarsia for comparing different theories of atomic structure. 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 topics: names and uses of different fractions, size of alkanes and flammability, alkanes vs alkenes and fractional distillation apparatus. 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 High School 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 yet challenging High School Chemistry tarsia for revision of the Haber process. There are 16 triangles with 18 pairs of questions and answers that make an equilateral triangle. 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: formula of ammonia, catalyst used, conditions used, feedstocks, reversible reactions, equilibrium, endothermic, exothermic, yield and rate of reaction. 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 High School Chemistry tarsia on state symbols. 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 High School 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 High School Chemistry tarsia for revision of atomic structure. 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: subatomic particles, using the periodic table to work out the number of subatomic particles. The software is free to download but there is not currently a version for Mac computers.

This is a fun High school 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 a fun GCSE chemistry tarsia for revision of cracking hydrocarbons. 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: state of ethene, octane and polyethene at room temperature, supply vs demand, formulae of ethene, decane and pentane, bromine water test. The software is free to download but there is not currently a version for Mac computers.

This is a fun Middle School Chemistry tarsia for revision of acids and alkalis. 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: indicator, pH meter, pH of different substances, formula of HCl and water. The software is free to download but there is not currently a version for Mac computers.

This is a fun High Chemistry tarsia for revision of polymerisation. 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: catalyst, thermal decomposition, formula of ethene and methane, elements in ethene, natural polymer, synthetic polymer, cross links, addition polymerisation. The tarsia software is free to download but there is not currently a version for Mac computers.