This lesson is designed to meet specification points for the NEW AQA Trilogy GCSE Biology ‘Organisation’ SoW. For more lessons designed to meet specification points for the NEW AQA Trilogy Biology, Chemistry and Physics specifications please visit my shop: https://www.tes.com/teaching-resources/shop/SWiftScience The lesson begins by completing an activity which recaps the role of each of the components of blood. Pupils are then introduced to the three types of blood vessels - artery, vein and capillary. Looking at a diagram provided pupils will need to consider the differences between the three in terms of structure an function. Pupils will then watch a video and answer questions about arteries and capillaries, the answers to the video are provided so that pupils can then self-assess their work. The next slide will show how veins are structured and how they work to move blood back to heart from the rest of the body. Pupils could draw a diagram to represent this if there was time. The next part of the lesson is the longest activity, pupils will need to either copy the blank table into their books or be given a printout of the table. Using cards of information pupils will need to complete the table, which shows the structural features of each of the blood vessels. The answers to this activity are provided so that pupils can either peer or self-assess their work. The next activity is a quick fill-in-the-blank task to demonstrate the role of the capillaries within the body. Students are now introduced to the idea of a double-circulatory system, using a diagram and a description of the system pupils will need to answer questions about the role of this system, which can then be self-assessed. The plenary task is for pupils to pick one question to answer from a list of traffic-light questions, green for most difficult and red for easiest. All resources are included in the lesson, any questions please leave a comment for me to get back to you and any feedback would be much appreciated :) thanks!

This is a bundle of whole lessons and resources which meets all specification points for the NEW AQA GCSE Biology Combined Science Trilogy course for the ‘Homeostasis’, ‘Inheritance, variation & evolution’ and ‘Ecology’ SoW, including all higher material. This bundle includes 58 lessons, which is around 14 weeks worth of work, with all additional resources included. The lessons contain a mix of differentiated activities, mid-lesson progress checks, extra challenge tasks, exam-style questions and more than one opportunity, per lesson, for self/peer red-pen assessment of tasks as answers/mark schemes have been provided within the PowerPoint slides. For reviews of any of the lessons or lessons bundles included in this bigger bundle please visit my shop: https://www.tes.com/teaching-resources/shop/SWiftScience Thank you for looking, please ask any questions via the comments section if you need to :)

This lesson is designed for the NEW AQA Physics GCSE, particularly the ‘Radioactivity’ SoW. For more lessons designed to meet specification points for the NEW AQA Trilogy specifications for Biology, Chemistry and Physics please see my shop: https://www.tes.com/teaching-resources/shop/SWiftScience The lesson begins with a video displaying the short-term and long-term effects of alcohol on the body. Students can watch the video and whilst watching create a mind map of the different effects, this work can then be self-assessed using the mark scheme provided. Next, the effect of alcohol on the liver and brain are specifically highlighted using the PowerPoint presentation, students will then need to compete a fill-in-the-blank task to highlight these specific risks. Again, the answers to this task are included in the PowerPoint presentation for students to self-assess and correct their work. Students are now shown some data and will need to answer a set of questions based on this data, the mark scheme for this task is included in the PowerPoint for students to mark and correct their work. The last part of the lesson focuses on the effect of alcohol on pregnant women and their unborn child. Students will watch a video, during which they will need to answer a set of questions. This work can then be self-assessed using the mark scheme provided. The plenary task requires students to write a twitter message about what they have learned this lesson, students should include #keywords from the lesson. All resources are included at the end of the presentation. Thanks for looking, if you have any questions please let me know in the comments section and any feedback would be appreciated :)

This lesson is designed for the Activate KS3 Science Course, specifically Year 7 B1.3 Module on ‘Reproduction’. For more lessons designed for KS3 and KS4 please visit my shop at: https://www.tes.com/teaching-resources/shop/SWiftScience. The lesson begins with a ‘Think > Pair > Share’ task, asking students to consider why flowers are so important, they can discuss their ideas in pairs before feeding back to the class. The next activity involves students learning about the anatomy of a flower. Information sheets are firstly placed around the room, using these studenst will need to complete a worksheet which included labelling a cross-sectional diagram of a flower and completing a table to outline the functions of each of the structural features. The mark scheme for this task is included in the PowerPoint so students can assess their own work once they have completed the task. The latter part of the lesson focuses on pollination, students will firsty watch a video and during this they should come up with a definition of ‘pollination’. Their answers can be checked against the definition provided on the PowerPoint, any corrections can be made. Students are introduced to the idea of cross-pollination and self-pollination, as well as the idea that plants can either be cross-pollinated by wind or by insects. Students are then shown two plants - Himalayan Balsam and a Dandelion - and are asked to consider which may be pollinated by wind and which by insects, try to encourage them to use a description of the flowers structure in their answers. Lastly, students will need to use a set of statements to complete a table outlining the structural features of insect-pollinated plants vs. wind-pollinated plants. The answers to this task are included in the PowerPoint so students can self-assess their work once it is complete. The plenary requires students to finish off one of the sentence starters provided, summarising what they have learned this lesson. All resources are included at the end of the presentation. Thanks for looking, if you have any questions please let me know in the comments section and any feedback would be appreciated :)

This resource meets specification points for the new AQA Trilogy GCSE Biology ‘Cells’ SoW. For other resources designed for the NEW AQA Trilogy GCSE Biology, Chemistry and Physics specifications please visit my shop: https://www.tes.com/teaching-resources/shop/SWiftScience This lesson begins by getting pupils to think about what diffusion is and then giving them the scientific definition for the process. Pupils will then need to read statements about the stages of diffusion, look at diagrams demonstrating these stages and match them together in their books. This activity will be self-assessed using the answers in the PowerPoint presentation. Pupils will then need to think > pair > share about the factors they think will affect the rate of diffusion. Once they have come up with their own ideas and shared them as a class you can show them the animation provided to demonstrate how concentration of particles and size affects the rate of diffusion. Pupils are then asked to consider how temperature might affect the rate, you can demonstrate this affect using the link to another animation which demonstrates this effect. Pupils will then complete a fill-in-the-blank task to demonstrate their knowledge of how these different factors affect the rate of diffusion, which can be self-assessed using the answers provided. Pupils will then look at the importance of diffusion in living organisms and specifically the types of adaptation organism might have to speed up the rate of diffusion. The final activity is a past-paper questions, when completed pupils will self-asses using the mark scheme. The plenary activity is quick past-paper question to complete and mark.

This is a lesson designed to meet specification points for the new AQA GCSE Trilogy Biology 'Cells' SoW. For more resources designed for the new AQA GCSE Trilogy Biology, Chemistry an Physics specifications please visit my shop: https://www.tes.com/teaching-resources/shop/SWiftScience This lesson begins by pupils completing a comprehension task, they will need to read details on the history of the microscope and answer questions into their books. Once finished pupils will need to then self-assess their work using the answers provided in the PowerPoint presentation. Pupils are then introduced to the idea of 'resolution' - the definition for which they need to know so pupils could write this down in their books. The next part of the lesson will focus more on maths skills related to microscopy, pupils will firstly need to calculate the overall magnification of a microscope using the objective lens and eyepiece lens magnifications. The next skill pupils will learn is to change units of measurement from cm > mm > um > nm. The next calculation pupils will need to know is how to calculate the actual size of a specimen being observed down a microscope. Pupils will be introduced to the calculation and then given a couple of example questions, pupils can attempt to have a go at these themselves. The following slide goes through step-by-step how you would calculate the answers to these questions. The plenary is a 'Silent 5' task where pupils will need to answer questions based upon what they have learnt during the lesson.

This lesson is designed for the Activate KS3 Science Course, specifically Year 7 B1.3 Module on ‘Reproduction’. For more lessons designed for KS3 and KS4 please visit my shop at: https://www.tes.com/teaching-resources/shop/SWiftScience. The lesson begins with an introduction to the definition for ‘gametes’, students will learn the role of the gametes in fertilisation and the specific structural features that sperm and egg cells possess which help them to carry out their function. Once students have learned about this, they will then complete on gametes structure to function. Once this task has been completed, students can self-assess their work using the mark scheme provided. Students are now introduced to the idea of fertilisation, a description of the process is provided, which students could take notes on in their book. This is followed by a task whereby students are given three terms - fertilisation, sperm cell and egg cell - using a bank of key words they will be required to write a definition for each. Next, students are shown a labelled diagram depicting sexual intercourse as well as an explanation of the process. The explanation should be read through as a class, answering any questions where necessary, before students are asked to complete a ‘progress check’ of questions on sexual intercourse. This work can then be self-assessed using the mark scheme provided. Lastly, students are shown a video of the journey a sperm cell has to make to reach an egg cell. Whilst watching the video, students will need to fill in the blanks on a cartoon strip depicting these events. Again, the mark scheme for this task is included in the PowerPoint for students to either self-assess or peer-assess their work. The plenary task is a 3-3-1 reduction, students need to write down 3 facts and 3 key words from the lesson today, as well as 1 question to test their peers knowledge of what was learned. All resources are included at the end of the presentation. Thanks for looking, if you have any questions please let me know in the comments section and any feedback would be appreciated :)

This lesson is designed for the KS3 Year 8 Science course, specifically the B2 1.3 unit on Adaptation & Inheritance. For more lessons designed for KS3 and KS4 please visit my shop at: https://www.tes.com/teaching-resources/shop/SWiftScience. The lesson begins with a ‘Think > Pair > Share’ task, students are asked to consider how to define ‘competition’. After a short discussion, the correct definition will then be revealed so students can take notes of this in their books. Next, students will be given a set of resources which animals/plants compete for, students will be asked to sort these resources into columns, either those that animals compete for, those that plants compete for or those that both animals and plants compete for. Once this task has been compelted, students can self-assess their work using the mark scheme provided. Next, students will watch a set of videos on competition between animals and plants, whilst watching the video they will need to complete a table for information to include - a resource - how organisms are competing for this resource - an explanation of how it is competing for the resource successfully. The work students have completed at the beginning of the lesson can then be summarised by a fill-in-the-blank activity, students should complete this in their books and it can then be marked and assessed using the answers provided. The second part of the lesson will focus on adaptations, students will firstly watch a video on adaptations, whilst watching the video they can answer a set of questions. The answers to these questions are included so students can assess their work once it is complete. Lastly, students will read through information stations around the room, which list adaptations of organisms which live in colder climates, warmer climates and dry climates. Students will need to complete a worksheet using these information sheets. The plenary activity requires students to come up with a set of three quiz questions to assess students knowledge of what they have learned this lesson. All resources are included at the end of the presentation. Thanks for looking, if you have any questions please let me know in the comments section and any feedback would be appreciated :)

This lesson is designed for the KS3 Year 8 Science course, specifically the B2 1.3 unit on Adaptation & Inheritance. For more lessons designed for KS3 and KS4 please visit my shop at: https://www.tes.com/teaching-resources/shop/SWiftScience. The lesson begins with a video on extinction, including an extra challenge task for pupils to come up with a definition of extinction. Whilst students are watching the video they will have a set of questions to answer, once this task has been completed students will self-assess their work using the mark scheme provided. Students will now be asked to ‘Think > Pair > Share’ their ideas about what causes extinction to occur within a species. Students will be given a few minutes to talk about this amongst themselves, before feeding back to the class. The answers will then be revealed using the PowerPoint presentation, students can mark and check their work against this mark scheme. Students will now be given cards of information on the 5 main causes of extinction: habitat destruction, introduction of new species, hunting & fishing, environmental changes & new diseases. Students should summarise this information in their books, writing a few sentences for each cause. In groups, students will be given cards of information on different organisms and the reasons why they are being pushed to extinction. Using this information students will need to complete a table of information to include 5 different organisms which are now extinct. Lastly, students will consider ways in which scientists are trying to prevent extinction. Each student will be given some information about the role of a gene bank, examples include: pollen banks, seed banks, cryobank & a tissue bank. They will then need to move around the classroom, sharing information with each to complete a summary table. This task can the be self-assessed using the mark scheme provided in the PowerPoint. The plenary task requires students to pretend you are a conservationist working for a charity that is trying to stop the extinction of one of the organisms you studied earlier in the lesson. Write a twitter message to your followers to raise awareness of the issues that are critically affecting this organism. All resources are included at the end of the presentation. Thanks for looking, if you have any questions please let me know in the comments section and any feedback would be appreciated :)

This lesson is designed for the KS3 Year 8 Science course, specifically the B2 1.3 Ecosystem Processes. For more lessons designed for KS3 and KS4 please visit my shop at: https://www.tes.com/teaching-resources/shop/SWiftScience. This lesson begins with a list of minerals that plants need to survive - magnesium, phosphates, nitrates and potassium. Students will need to ‘Think > Pair > Share’ their ideas about how plants receive their minerals. After a short class discussion, students will be shown a diagram which demonstrates how mineral ions are taken up by the plant. Students will now watch a video, this video will go through some of the symptoms of different mineral deficiencies. Whilst watching the video, students will need to note down these symptoms. This task can be marked and corrected against the mark scheme provided once complete. The next part of the lesson will focus on farming methods, students will each be given a different bit of information on a method employed by farmers to increase crop yield. Students will need to walk around the room to share information on these methods in order to complete a summary table. This can then be self-assessed using the mark scheme provided on the PowerPoint. Lastly, students will now design and complete a pamphlet of information for farmers to help them decide which type of minerals their plants may be deficient in, this should include images of a healthy plant as well as unhealthy plants depicting various mineral deficiencies. The plenary task requires students to write a Whatsapp message to a friend, explaining what they have learned this lesson. All resources are included at the end of the presentation. Thanks for looking, if you have any questions please let me know in the comments section and any feedback would be appreciated :)

This lesson is designed for the KS3 Year 8 Science course, specifically the B2 1.1 Health & Lifestyle. For more lessons designed for KS3 and KS4 please visit my shop at: https://www.tes.com/teaching-resources/shop/SWiftScience. The lesson begins with a question for students to ‘Think, Pair & Share’ with the class - ‘What do you think the most used drug in the world it?’ After a short class discussion, the answer will then be revealed as coffee! Students are now introduced to definition for drug, as well as explaining the difference between medicinal and recreational drugs. This then follows into a task whereby students should complete a mind map of reasons why people might want to take drugs. Their answers can be checked against the mark scheme which is provided on the PowerPoint. On the next slide students are provided with a more comprehensive explanation of the differences between medicinal and recreational drugs. The next task will then require students to sort a list of drugs into two columns - medicinal vs. recreational. This task can then be self-assessed using the mark scheme provided on the PowerPoint. Next, students are provided with some information about the differences between addiction and dependency. Students should answer a set of questions using this information, once complete this task can then be self-assessed using the mark scheme provided. Lastly, students will look into the use of performance-enhancing drugs in sport. Students will each be given a statement which is a viewpoint on the use of such drugs in sporting events. A class debate could the be organised for people to relay their viewpoints, whilst this is occurring students can write down arguments for and against drugs in sport within a summary table. The plenary task requires students to complete an exit card which included three things learned this lesson, five key words and one question to test their peers on what they have learned this lesson. All resources are included at the end of the presentation. Thanks for looking, if you have any questions please let me know in the comments section and any feedback would be appreciated :)

This lesson is designed for the Activate KS3 Science Course, specifically Year 7 B1.1 Module on ‘Cells’ For more lessons designed for KS3 and KS4 please visit my shop at: https://www.tes.com/teaching-resources/shop/SWiftScience. The lesson begins with an introduction to the substances that move in and out of cells via a process called diffusion. Students are then asked to summarise this information by sketching and labelling a diagram of a cell. The idea of diffusion is further explained using an image of a deodrant bottle spraying smelly particles into the air and showing how they spread from an area of high concentration to an area of low concentration. A definition of this process is shown to students, before they are asked to complete a fill-in-the-blank task to summarise the process, this work can be self-assessed using the mark scheme provided. Next, students will need to sketch diagrams demonstrating the various stages of diffusion, and will need to match the correct statements to the correct diagrams. This work can be then be self or peer assessed using the mark scheme provided. The next part of the lesson looks at factors that affect diffusion, students are firstly asked to ‘Think > Pair > Share’ their ideas on the factors which might affect the rate of diffusion. After students have fed back into class discussion, the answers are revealed for students to note down in their books. They will then look more closely at the effect of temperature on the rate of diffusion by watching a video and then summarising what they have learned by completing a fill-in-the-blank task. Lastly, students are shown diagrams of plant cells of healthy plants vs. wilted planted to demonstrate the effect of having too much/too little water in the vacuole of plant cells. All resources are included at the end of the presentation. Thanks for looking, if you have any questions please let me know in the comments section and any feedback would be appreciated :)

This lesson is designed for the Activate KS3 Science Course, specifically Year 7 B1.1 Module on ‘Cells’ For more lessons designed for KS3 and KS4 please visit my shop at: https://www.tes.com/teaching-resources/shop/SWiftScience. The lesson starts with a ‘Cells Rap’ - students will be shown a video, during which they need to write down as many cell organelles as they can. Once they have finished watching their work can be self-assessed using the answers provided. Next, students will be shown a diagram of an animal and plant cell with the organelles labelled. Students are asked to note down the similarities and differences between these two cells, the answers to this task can then be revealed using the PowerPoint presentation. This is followed by a comprehension task whereby students will need to read an information sheet on ‘Animal & Plant Cells’, using this information they will need to answer a set of questions. The mark scheme for this task is included so students can self or peer assess their work once it’s complete. Next, students will learn about the functions of each of the organelles. Students will be given a card of information about the function of one of the organelles. They will need to walk around the room, sharing information in order to complete the summary table. Again, this work can be self-assessed once complete. Lastly students will complete a ‘Team Challenge’ in groups, each group will stand behind a poster and every person has one go to fill in part of the poster (either name/function of organelles), the fastest group to complete the poster correctly wins! The plenary requires students to summarise what they have learned in the lesson by completing the sentence starters provided. All resources are included at the end of the presentation. Thanks for looking, if you have any questions please let me know in the comments section and any feedback would be appreciated :)

This lesson is designed for the NEW AQA AS-level Biology course, particularly the ‘Cells’ module. For more lessons designed to meet specification points for the NEW AQA A-level Biology course please visit my shop: https://www.tes.com/teaching-resources/shop/SWiftScience A-Level lesson format: I teach in more of a lecture style compared to GCSE. In the majority of my A-level lessons the beginning portion of the lesson is mainly teacher-led, where students are expected to take notes onto a handout/in their books. This is then mixed in with student-led activities, as well as questions and exam prep. You will find some of my slides have blank spaces for you to add more detail/descriptions/explanations. If you look at the ‘Notes’ section underneath each of these slides, you will find additional content which you can add in as you teach! This lesson on cell specialisation and organisation begins with a discussion to review specialised cell examples. Students should also describe the difference between smooth and rough endoplasmic reticulum, as well as the role of chloroplasts. To review organelles, students are then given a matching worksheet with descriptions of nine organelles. They can check the names of each with the answers on the slide. This task leads them to a series of organelle images to label and check as well. Students are then tasked with past-paper questions to check their understanding of cell structure. A mark scheme is on the next slide. To begin the discussion of cell specialisation students are tased with a worksheet to try with a partner. The worksheet asks students to consider what information each organelle can tell us. Suggested answers are on the following slides. The lesson should then spark some conversation about the organisation of certain cells, before students work through a few slides of questions about cell organisation in general. After learning the levels of cell organisation students are led through a few examples to decide for themselves which level each example fits in. To synthesise their learning, students will work through a ‘cut & stick’ task to create a table of each cell type and its characteristics. A completed table is on the following slide so students may self-asses. The plenary for this lesson is to write three sentences in their book summarising what they’ve learned! All resources are included. Thanks for looking, if you have any questions please let me know in the comments section and any feedback would be appreciated :)

This lesson is designed for the NEW AQA AS-level Biology course, particularly the ‘Cells’ module. For more lessons designed to meet specification points for the NEW AQA A-level Biology course please visit my shop: https://www.tes.com/teaching-resources/shop/SWiftScience A-Level lesson format: I teach in more of a lecture style compared to GCSE. In the majority of my A-level lessons the beginning portion of the lesson is mainly teacher-led, where students are expected to take notes onto a handout/in their books. This is then mixed in with student-led activities, as well as questions and exam prep. You will find some of my slides have blank spaces for you to add more detail/descriptions/explanations. If you look at the ‘Notes’ section underneath each of these slides, you will find additional content which you can add in as you teach! To begin this lesson on cancer, students will review their knowledge of cell processes. They should be able to describe mitosis, the prophase, and cytokinesis in detail. For a quick recap on mitosis students will watch a short video, then use their mini whiteboards to name cell cycles and their roles based the images on the following slides! Students will then learn to calculate miotic index (MI). The following slide features an exam-style chart for them to practice calculating MI values. They will then learn to calculate the time a cell spends in each stage and complete example calculations by showing all of their working on their mini whiteboards. Answers for self-assessment are on the following slide. Using their knowledge on MI and cell stage time students will begin to think about cancer. They should make note of the definitions of key words before moving on. Students will then watch a short video on the cancer genome project and answer four questions in their books while watching. Answers are provided for self-assessment. The cell cycle is controlled at three checkpoints, at which the cell can continue or stop production. Students should make clear note in their books before moving on to discuss how these checkpoints are relevant to cancer. The following slides define proto-oncogenes, oncogenes, and mutated tumour suppressor genes, so students should be able to explain how mutations cause cancer. Students are then taught how cancer treatment works in the cell cycle. The following slide considers the cellular side-effects of treating cancer. To consolidate students will practise an exam-style fill in the blank task. Answers are on the following slide for self-assessment. The plenary task is for students to draft a WhatsApp message to a friend explaining what they have learned about cancer in this lesson. All resources are included. Thanks for looking, if you have any questions please let me know in the comments section and any feedback would be appreciated :)

All resources are included. Thanks for looking, if you have any questions please let me know in the comments section and any feedback would be appreciated :)

This lesson is designed for the NEW AQA AS-level Biology course, particularly the ‘Biological Molecules’ module. For more lessons designed to meet specification points for the NEW AQA A-level Biology course please visit my shop: https://www.tes.com/teaching-resources/shop/SWiftScience A-Level lesson format: I teach in more of a lecture style compared to GCSE. In the majority of my A-level lessons the beginning portion of the lesson is mainly teacher-led, where students are expected to take notes onto a handout/in their books. This is then mixed in with student-led activities, as well as questions and exam prep. You will find some of my slides have blank spaces for you to add more detail/descriptions/explanations. If you look at the ‘Notes’ section underneath each of these slides, you will find additional content which you can add in as you teach! This lesson begins with an introduction to proteins, the importance of such molecules in the human body as well as the general structural formula of an amino acid. Students are then shown the structural formula of two amino acids - glycine and alanine - and are asked to used their mini whiteboards to show how a condensation reaction could occur between the two molecules to form a peptide bond. There work can then be checked against the answer provided on the PowerPoint. Over the course of the next few slides, you can run through the main principles of the formation of a protein from the primary -> secondary -> tertiary -> quaternary structure. As students listen to the main principles, they can write these down onto their ‘Protein Summary Sheet’ - provided. Students will then be given a worksheet which shows an image/description of a protein as one of the four levels of protein formation, students have to identify which level it is at (primary, secondary, tertiary, quaternary). Once complete, students can self-assess their work using the answers provided on the PowerPoint. Students will now be introduced to the Biuret test for proteins, which they will need to be able to recite as well as give details of a positve/negative result. The last activity is a past-paper question to test students knowledge of what has been learned this lesson, which can be self-assessed using the mark scheme provided. The plenary requires students to write a twitter message to outline what they have learned this lesson, including #keywords. All resources are included. Thanks for looking, if you have any questions please let me know in the comments section and any feedback would be appreciated :)

This lesson is designed for the NEW AQA AS-level Biology course, particularly the ‘Organisms & their Environment’ module. For more lessons designed to meet specification points for the NEW AQA A-level Biology course please visit my shop: https://www.tes.com/teaching-resources/shop/SWiftScience A-Level lesson format: I teach in more of a lecture style compared to GCSE. In the majority of my A-level lessons the beginning portion of the lesson is mainly teacher-led, where students are expected to take notes onto a handout/in their books. This is then mixed in with student-led activities, as well as questions and exam prep. You will find some of my slides have blank spaces for you to add more detail/descriptions/explanations. If you look at the ‘Notes’ section underneath each of these slides, you will find additional content which you can add in as you teach! This lesson in exchange systems begins by asking students to think of example of exchange systems and the substances which would need to be exchanged. The next slide demonstrates the differences in exchange process for single and multicellular organisms. Notes are available under the slide for discussion. Using the pictures on the slides, students will then identify some examples of substances that need to be interchanged between a living organism and its environment. Those images are then ordered specifically on the next slide to demonstrate SA and body size. If multicellular organisms relied on diffusion, they would die, so they have evolved in other ways! Students should identify these evolved features in their next task. They will fill a table out to explain how each feature functions to help organisms exchange the substances they need. They should be able to identify why multicellular organisms need specialised exchange surfaces or systems. The next slides explain Fick’s Law and define important terms before asking students to calculate the surface area of cells. Answers for self-assessment are on the following slide. Students will then complete lab task CP8 to engage with the effect of SA:V ratio on the rate of diffusion. Materials and method are explained on the slides. Exam-style summary questions are included to consolidate the lab task with lecture notes, and answers for self-assessment are on the following slide. As a plenary, students will spend 60 seconds speaking with the person next to them about what they learned from the lesson over all. All resources are included. Thanks for looking, if you have any questions please let me know in the comments section and any feedback would be appreciated :)