This detailed lesson describes the importance of the dipole nature of water and its numerous properties to living organisms. The engaging PowerPoint and accompanying resource have been designed to cover the details of specification point 1.7 of the Edexcel A-level Biology B course and the intricate planning ensures that each role is illustrated using a specific example. As the final lesson in the biological molecules topic, not only does this lesson cover the important content related to water but also acts as a revision tool as it checks on key topic 1 content such as condensation and hydrolysis reactions. A wide range of tasks are used to check on current understanding and prior knowledge and quick quiz competitions introduce key terms and values in a memorable way. The start of the lesson considers the structure of water molecules, focusing on the covalent and hydrogen bonds, and the dipole nature of this molecule. Time is taken to emphasise the importance of these bonds and this property for the numerous roles of water and then over the remainder of the lesson, the following properties are described and discussed and linked to real-life examples: high specific heat capacity polar solvent surface tension incompressibility maximum density at 4 degrees Celsius

This detailed and engaging lesson describes the structural similarities and differences between DNA and RNA. The PowerPoint and accompanying worksheet containing exam-style questions have been designed to cover point 1.5.1 of the AQA A-level Biology specification. In the first lesson of topic 1, the students were introduced to a number of monomers which included a nucleotide. In line with this, the start of the lesson challenges them to recognise the key term nucleotide when only the letters U, C and T are shown. The next part of the lesson describes the structure of a DNA nucleotide and an RNA nucleotide so that the pentose sugar and the bases adenine, cytosine and guanine can be recognised as similarities whilst deoxyribose and ribose and thymine and uracil are seen as the differences. Time is taken to discuss how a phosphodiester bond is formed between adjacent nucleotides and their prior knowledge and understanding of condensation reactions is tested through a series of questions. Students are then introduced to the purine and pyrimidine bases and this leads into the description of the double-helical structure of DNA and the hydrogen bonds between complementary bases. The final section of the lesson describes the structure of mRNA, tRNA and rRNA and students are challenged to explain why this single stranded polynucleotide is shorter than DNA In addition to the current understanding and prior knowledge checks, a number of quiz rounds have been written into the lesson to introduce key terms in a fun and memorable way and the final round acts as a final check on the structures of DNA and RNA.

This engaging lesson describes the relationship between the structure and properties of a phopholipid and explains the link to its role in membranes. The PowerPoint has been designed to cover the second part of point 1.3 of the AQA A-level Biology specification and includes constant references to the previous lesson on triglycerides. The role of a phospholipid in a cell membrane provides the backbone to the whole lesson. A quick quiz round called FAMILY AFFAIR, challenges the students to use their knowledge of the structure of a triglyceride to identify the shared features in a phospholipid. This then allows the differences to be introduced, such as the presence of a phosphate group in place of the third fatty acid. Moving forwards, the students will learn that the two fatty acid tails are hydrophobic whilst the phosphate head is hydrophilic which leads into a key discussion point where the class has to consider how it is possible for the phospholipids to be arranged when both the inside and outside of a cell is an aqueous solution. The outcome of the discussion is the introduction of the bilayer which is critical for the lesson in topic 2 on the fluid mosaic model. The final part of the lesson explains how both facilitated diffusion and active transport mean that proteins are found floating in the cell membrane and this also helps to briefly prepare the students for upcoming topic 2 lessons.

This lesson describes the steps in the emulsion test for lipids and then uses a range of tasks to challenge the students on their knowledge of topic 1.3. The engaging PowerPoint and accompanying resource are part of the last lesson in a series of 3 lessons which have been designed to cover the content of point 1.3 (lipids) of the AQA A-level Biology specification. The first part of the lesson describes the key steps in the emulsion test for lipids, and states the positive result for this test. There is a focus on the need to mix the sample with ethanol, which is a distinctive difference to the tests for reducing sugars and starch. The remainder of the lesson uses exam-style questions with mark schemes embedded in the PowerPoint, understanding checks, guided discussion points and quick quiz competitions to challenge the following specification points: The structure of a triglyceride The relationship between triglyceride property and function The hydrophilic and hydrophobic nature of the phospholipid The phospholipid bilayer of the cell membrane Cholesterol is also introduced so that students are prepared for this molecule when it is met in topic 2.3 (cell membranes)

An engaging and detailed lesson presentation (48 slides) and associated game that goes through the topic of ecosystems, making sure that the numerous key words are recognised and understood and ensures that students know the difference between biotic and abiotic factors. A game of keyword bingo runs throughout the lesson to act as a motivation and to make sure that the students keep track of all of the important terminology. Time is taken after some of the important words to go into depth so that the Biology is fully understood. Students will learn the difference between biotic and abiotic factors and then will carry out a number of tasks to explain how the abiotic factors can affect the community. There are regular progress checks throughout the lesson so that students can assess their understanding. This lesson was designed for GCSE students but can also be used with KS3 and also as a recap with A level students

An informative lesson presentation (37 slides) and accompanying worksheets that guides students through the different methods that can be used to rearrange formulae as they will be required to do in the Science exams. The lessons shows them how to use traditional Maths methods involving inverse operations and also equation triangles to come to the same result. These are constantly linked to actual examples and questions to show them how this has to be applied. There are regular progress checks, with explained answers, so that students can assess their understanding.

An informative and engaging lesson (46 slides) that looks at the topic of immobilised enzymes and focusses on ensuring that students understand this topic around three main ideas. By the end of the lesson, students will be able to explain why immobilised enzymes are used, describe the different methods by which they are produced and describe some of their uses in biotechnology. Time is taken throughout the lesson to make sure that students understand the disadvantages associated with this process and that they are able to explain the specific limitations of each method. This lesson has been designed for students studying A-level Biology

A fully-resourced lesson that teaches students how to calculate the concentration of a solution in the units grams per decimetres cubed and mol per decimetre cubed. The lesson includes a concise but detailed lesson presentation (20 slides) and a set of differentiated questions. The lesson begins by introducing students to volumes in decimetres cubed and time is taken to ensure that students are able to convert to this measurement. Moving forwards, students are guided through how to calculate the concentration in both units through the use of worked examples. Differentiated questions are available so that all abilities can access the work. This lesson has been written for GCSE students (14 - 16 year olds in the UK) but could be used with students who are beginning their A level Chemistry studies

A highly detailed set of 2 lessons (35 slides) on the topic of rearranging the formula. Over the course of the two lessons, they build up gradually with a culmination of some of the more difficult questions on this topic met at GCSE. Students are reminded of the meaning of the "subject of the formula" and then introduced to inverse operations. Students are guided through the simple questions involving one move to rearrange before looking at two moves and then questions which involve indices and square roots. The second lesson looks at the hardest questions, involving additional Mathematical skills such as factorising. Progress checks are constant throughout the two lessons so that any misconceptions can be quickly addressed. These lessons were designed for students studying GCSE but can be used with KS3 students appropriately too

This fully-resourced lesson explains how an enzyme’s specificity is related to their 3D structure and enables them to act as biological catalysts. The engaging PowerPoint and accompanying resources have been designed to cover the first parts of specification point 1.4.2 and considers the details of Fischer’s lock and key hypothesis and Koshland’s induced-fit model to deepen student understanding of the mechanism of enzyme action The lesson has been specifically planned to tie in with related topics that were previously covered such as protein structure and globular proteins. This prior knowledge is tested through a series of exam-style questions along with current understanding and mark schemes are included in the PowerPoint so that students can assess their answers. Students will learn that enzymes are large globular proteins which contain an active site that consists of a small number of amino acids. Emil Fischer’s lock and key hypothesis is introduced to enable students to recognise that their specificity is the result of an active site that is complementary in shape to a single type of substrate. Time is taken to discuss key details such as the control of the shape of the active site by the tertiary structure of the protein. The induced-fit model is described so students can understand how the enzyme-susbtrate complex is stabilised and then students are challenged to order the sequence of events in an enzyme-controlled reaction. The lesson finishes with a focus on ATP synthase and DNA polymerase so that students are aware of these important intracellular enzymes when learning about the details of respiration and DNA replication before they are challenged on their knowledge of carbohydrates, lipids and proteins from topics 1.2 - 1.4 as they have to recognise some extracellular digestive enzymes.

An engaging lesson presentation (54 slides) and associated worksheets that uses a combination of exam questions, quick tasks and quiz competitions to help the students to assess their understanding of the topics found within the Chemistry unit C7 (Organic chemistry) of the AQA GCSE Combined Science specification (specification point C5.7) The topics that are tested within the lesson include: Crude oil, hydrocarbons and alkanes Fractional distillation and petrochemicals Properties of hydrocarbons Cracking and alkenes Students will be engaged through the numerous activities including quiz rounds like “What FRACTION of this is correct” and “Are you on FORM” whilst crucially being able to recognise those areas which need further attention

A lesson presentation (44 slides), accompanied by a question worksheet, which together looks at the reactants and products of a neutralisation reaction and challenges students to represent these reactions with equations. The lesson begins with a bit of fun as students are asked to read through a scene from the US comedy show and spot that a neutralisation reaction is hidden under the jokes. Students will use their KS3 knowledge to recall that these reactions involve acids and alkalis and moving forwards they will be introduced to a new term, base. The rest of the lesson focuses on writing word and balanced symbol equations for different neutralisation reactions. A step by step guide is used to demonstrate how to work out the name of the salt as well as writing accurate chemical formulae. Finally, students are challenged to apply their new-found knowledge and complete equations for 4 neutralisation reactions and they can assess against the displayed mark schemes. Progress checks have been written into the lesson at regular intervals so that this self-assessment is constant and any misconceptions are quickly addressed. This lesson has been written for GCSE students but could be used with younger students who are looking to extend their knowledge

A fully-resourced lesson that looks at the reaction of an acid with a metal or a metal carbonate and guides students through writing word and symbol equations to represent these reactions. This lesson includes a lesson presentation (39 slides) and differentiated worksheets. The lesson begins by challenging the students to spot a pattern when naming the salts that are produced from these reactions. Students are shown how the second word of the salt’s name depends upon the particular acid involved in the reaction and are given opportunities to watch this in worked examples before applying their knowledge to a question. Students will also meet the general formula for the reaction of an acid with a metal carbonate. Moving forwards, a step by step guide is used to show the students how to write fully balanced symbol equations. Time is taken to specifically show them how to write accurate chemical formulae, including those which involve a bracket as is common in this topic. The final task challenges the students to bring all of this information together to write word and symbol equations for three reactions. This worksheet is differentiated two ways so students who require some assistance can still access the work. This lesson has been written for GCSE students (14 - 16 year olds in the UK)

This engaging and detailed REVISION resource has been written to encourage students to evaluate their understanding of the content found in MODULE 4.1.1 (Communicable diseases, disease prevention and the immune system) of the OCR A-Level Biology specification. The resource contains a motivating PowerPoint (86 slides) and associated worksheets which have been differentiated to support students of differing abilities in their access of the work. The lesson includes a wide range of activities such as exam questions, quick tasks and quiz competitions to motivate the students whilst they recognise those areas of the specification which require even more attention. The lesson has been designed to cover as much of the content in module 4.1.1 as possible but the following sub-topics have been given particular attention: Communicable diseases caused by bacteria, viruses and fungi Bacteria as pathogens Antigen-presenting cells The specific immune response Antibiotics and the existence of resistant strains Preventing the spread of pathogens Vaccinations Primary defences of the human body In addition to content from this module, links are made to earlier modules and challenges posed so that students can see how connections between the modules have to be made to be successful. This resource is suitable for use at the end of the module, in the lead up to AS or A2 mocks or in the lead up to the actual A-level exams.

A fully resourced lesson which includes an informative lesson presentation (34 slides) and differentiated worksheets that show students how to convert between units so they are confident to carry out these conversions when required in Science questions. The conversions which are regularly seen at GCSE are covered as well as some more obscure ones which students have to be aware of. A number of quiz competitions are used throughout the lesson to maintain motivation and to allow the students to check their progress in an engaging way This lesson has been designed for GCSE students but is suitable for KS3

An engaging lesson presentation (70 slides) and associated worksheets that uses a combination of exam questions, quick tasks and quiz competitions to help the students to assess their understanding of the topics found within the Chemistry unit C1 (Atomic structure and the Periodic Table) of the AQA GCSE Combined Science specification (specification unit C5.1). The topics that are tested within the lesson include: Mixtures Development of the model of the atom The subatomic particles Electronic structure The periodic table Metals and non-metals Group 0 Group 1 Group 7 Students will be engaged through the numerous activities including quiz rounds like “UNLOCK the safe" whilst crucially being able to recognise those areas which need further attention

A fully resourced revision lesson that uses a combination of exam questions, understanding checks, quick tasks and quiz competitions to help the students to assess their understanding of the topics found within unit C9 (Chemistry of the atmosphere) of the AQA GCSE Combined Science specification (specification point C5.9). The topics that are tested within the lesson include: The proportion of different gases in the atmosphere The Earth’s early atmosphere Greenhouse gases Atmospheric pollutants Students will be engaged through the numerous quiz rounds whilst crucially being able to recognise those areas which require further attention

An engaging lesson presentation and associated worksheet that looks at the use of antibiotics to treat bacterial infections and the raises the issue of the potential over-use of these substances. The lesson begins by getting the students to recognise the difference between three key terms that begin with anti (antibiotics, antivirals, antiseptics). Students will be introduced to the idea that antibiotics are specific to a small range of bacteria and therefore the correct one has to be selected before being prescribed. Moving forwards, students will meet the idea of the zone of inhibition and will understand how the size of this zone can be used as an indicator to the effectiveness of the treatment. Students are shown how to calculate the size of the zone and then are tested on their ability to apply this mathemetical knowledge. Finally, time is taken to look at the links to the topic of natural selection to explain how some bacteria are resistant to certain antibiotics. There are regular progress checks throughout the lesson so that students can assess their understanding. This lesson has been designed for GCSE students but could be used as an introduction with A-level Biology students who are about to begin the topic of immunity.

This is a fully-resourced revision lesson that uses a combination of exam questions, understanding checks, quick tasks and quiz competitions to enable students to assess their understanding of the content found within Module 2.1.1 (Cell structure) of the OCR A-level Biology A specification. The sub-topics and specification points that are tested within the lesson include: The use of microscopy to observe and investigate different types of cells The use and manipulation of the magnification formula The difference between magnification and resolution The ultrastructure of eukaryotic cells and the function of the different cellular components Interpretation of electron microscope images The interrelationship between the organelles involved in the production and secretion of proteins The similarities and differences in the structure and ultrastructure of prokaryotic and eukaryotic cells Students will be engaged through the numerous quiz rounds such as “It doesn’t HURT to CONVERT” and “Word association game” whilst crucially being able to recognise those areas which require their further attention during general revision or during the lead up to the actual A-level terminal exams