Key stage 3 ~ year 8 ~ complete lesson on ecosystems. In this lesson students will identify niches within an ecosystem, describe how organisms coexist within an ecosystem and practice using key vocabulary. Extension questions are included on the slides and there is a pick and mix of different tasks to select from for your students. This lesson includes: -Title slide with learning objectives -A starter activity -Group reading (literacy) -Keywords (vocabulary: population, community, habitat, ecosystem, niche and coexist) -Task boxes -Consolidation questions -Handout sheet task -Discussion exercise -Answer slides included for self-assessment -Next lesson Revision https://www.tes.com/teaching-resource/resource-12768583 www.tes.com/teaching-resources/shop/Dr_Troilo

PowerPoint presentation and worksheet on transpiration and translocation for GCSE biology for teaching and revision. Simple step by step explanations of concepts up to the end of KS4. When learning about transpiration and translocation it helps if students have some prior knowledge of diffusion, active transport, specialist cells and plant cell organisation. Key points from these topics are recapped in the presentation, but this resource assumes that they have encountered them before. Follows on from Active Transport: https://www.tes.com/teaching-resource/-12335738 Content Covered: Xylem and phloem Translocation Transpiration Rate of transpiration Potometers Leads on to Plant Diseases: https://www.tes.com/teaching-resource/plant-diseases-slides-and-worksheet-gcse-biology-aqa-12357901 Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo New! Transpiration and translocation lesson https://www.tes.com/teaching-resource/resource-12863543

PowerPoint presentation and worksheet on monoclonal antibodies for teaching and revision. Simple step by step explanations of concepts up to the end of KS4. This resource follows the AQA Biology GCSE syllabus but is also applicable to other courses. Content Covered: Producing monoclonal antibodies Hybridomas Pregnancy tests Monoclonal antibodies as a cancer treatment Research and diagnostic uses Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. NEW lesson on monoclonal antibodies https://www.tes.com/teaching-resource/resource-12949047

Key stage 3 ~ year 7 ~ complete revision lesson for Chemistry C1d (Acids and Alkalis). This lesson covers the major topics from this unit and can be used to revise for end of topic tests or to address knowledge gaps identified in the end of topic assessments. In this lesson students will revise: -Safety and hazard symbols -The difference between concentrated and dilute acids and alkaline solutions -Indicators and the pH scale -Neutralisation reactions and their uses -Reactions of acids with metals and bases to form salts -Neutralisation in the context of previous topics (particles and their behaviours, elements, atoms and compounds and chemical reactions) -Return to the start of the topic https://www.tes.com/teaching-resource/resource-12978799 www.tes.com/teaching-resources/shop/Dr_Troilo

Key stage 3 ~ year 7 ~ complete revision lesson for Biology B1a (Cells). This lesson covers the major topics from this unit and can be used to revise for end of topic tests or to address knowledge gaps identified in the end of topic assessments. In this lesson students will revise: -How to use a microscope to observe cells -How to calculate magnification -Parts of the cell and their function -The difference between plant and animal cells -Examples of specialised cells -Diffusion -Unicellular organisms -The presentation includes a free bonus resource specifically for revising the onion cells practical -All tasks, including the worksheet have an optional self-assessment slide where needed. This presentation is fully editable. -Return to the start of the topic: https://www.tes.com/teaching-resource/resource-12975350 www.tes.com/teaching-resources/shop/Dr_Troilo

Key stage 3 ~ year 7 ~ complete revision lesson for Chemistry C1a (Particles and their Behaviour). This lesson covers the major topics from this unit and can be used to revise for end of topic tests or to address knowledge gaps identified in the end of topic assessments. In this lesson students will revise: The difference between mixtures and substances The three states of matter Changes of state Heating and cooling curves Using heating and cooling curves to check purity Using heating and cooling curves to identify substances Predicting states of matter Sweating and evaporation Sublimation and deposition Factors affecting diffusion speed Factors affecting gas pressure Answers included Return to the start of the topic https://www.tes.com/teaching-resource/resource-12660766 www.tes.com/teaching-resources/shop/Dr_Troilo

Key stage 3 ~ full lesson on the topic of Biotechnology. In this lesson pupils will describe how fermentation is used in the food industry (bread and alcohol from yeast fermentation, cheese and yoghurt from bacteria fermentation), complete flowcharts showing some biotechnology processes and explain what the term biotechnology means. Extension questions are included on the slides and there is a pick and mix of different tasks to select from for your students. Follows the Activate 3 KS3 course. This lesson includes: -Title slide with learning objectives -A starter activity -Group reading (literacy) -Keywords (biotechnology, fermentation, pasteurisation, probiotic and antibiotic) -Task boxes -Order the steps (making alcoholic drinks) -Handout sheet task (making cheese and yoghurt) -Comprehension questions -Answer slides included for self-assessment -Next lesson Enzymes in Industry https://www.tes.com/teaching-resource/resource-12824810 www.tes.com/teaching-resources/shop/Dr_Troilo

PowerPoint presentation and worksheet on cloning for GCSE biology for teaching and revision. Simple step by step explanations of concepts up to the end of KS4. This resource follows on from Evolution. (https://www.tes.com/teaching-resource/resource-12557498) Next topic Genetic Engineering: https://www.tes.com/teaching-resource/resource-12633773 Content Covered: -Revision of meristems and therapeutic cloning from previous topics -Tissue culture cloning -Cuttings -Artificial twinning -Cloning adult animals -Bioethics of cloning Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo

Key stage 3 ~ year 8 ~ complete lesson on inheritance. In this lesson students will explain how characteristics are inherited. They will also describe the structure of DNA and some of the history of DNA discovery. Extension questions are included on the slides and there is a pick and mix of different tasks to select from for your students. This lesson includes: -Title slide with learning objectives -A starter activity -Group reading (literacy) -Keywords (vocabulary: fertilisation, genetic information, DNA, chromosomes and genes) -Task boxes -Order the steps -Handout sheet task -Answer slides included for self-assessment -Next lesson Natural Selection https://www.tes.com/teaching-resource/resource-12770866 www.tes.com/teaching-resources/shop/Dr_Troilo

Key stage 3 ~ year 7 ~ complete revision lesson for Physics P1b (Sound). This lesson covers the major topics from this unit and can be used to revise for end of topic tests or to address knowledge gaps identified in the end of topic assessments. In this lesson students will revise: Key points from the previous unit (forces) Transverse and longitudinal waves Features of a wave Reflection and superposition Amplitude/loudness and frequency/pitch Infrasound and ultrasound Ear anatomy and hearing Ultrasound scans and sonar Return to the start of the topic https://www.tes.com/teaching-resource/-12979803 www.tes.com/teaching-resources/shop/Dr_Troilo

Key stage 3 ~ year 7 ~ complete revision lesson for Biology B1b (Structure and Function of Body Systems). This lesson covers the major topics from this unit and can be used to revise for end of topic tests or to address knowledge gaps identified in the end of topic assessments. In this lesson students will revise: Key points from B1a (Cells) The levels of organisation in multicellular organisms Gas exchange Breathing in and out The role of the skeleton The role of joints in movement The role of muscles in movement All tasks, including the worksheet, have an optional self-assessment slide where needed. This presentation is fully editable. Return to the start of the topic https://www.tes.com/teaching-resource/resource-12652335 www.tes.com/teaching-resources/shop/Dr_Troilo

PowerPoint presentation and worksheet on exchanging substances in biology for teaching and revision. Simple step by step explanations of concepts up to the end of KS4. This resource follows the AQA Biology GCSE syllabus but is also applicable to other courses. Leads on to Active Transport: https://www.tes.com/teaching-resource/active-transport-slides-and-worksheet-gcse-biology-aqa-12335738 Content Covered: Surface area to volume ratio Gas exchange in the lungs Nutrient uptake in the small intestine Gas exchange in leaves Gas exchange in gills Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo New! Exchanging substances lesson https://www.tes.com/teaching-resource/resource-12832416

PowerPoint presentation and worksheet on adrenaline and thyroxine for teaching and revision. Simple step by step explanations of concepts up to the end of KS4. This resource follows the AQA Biology GCSE syllabus. Related topic the Endocrine System: https://www.tes.com/teaching-resource/resource-12362835 Content Covered: Adrenaline regulation of the flight or fight response Thyroxine regulation of metabolism Negative feedback graphs Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo

Key stage 3 ~ year 7 ~ complete lesson on stretching and compression. In this lesson students will describe how forces deform objects, explain what happens when you stretch a spring and define the elastic limit and Hooke’s Law. Extension questions are included on the slides and there is a pick and mix of different tasks to select from for your students. This lesson includes: -Title slide with learning objectives -A starter activity -Group reading (literacy) -Keywords task (vocabulary: deform, compress, elastic limit, extension, tension and reaction force) -Task boxes -Numeracy task (calculations) -Numeracy task (graph drawing) -Comprehension and recall task -Handout sheet -Extension questions are included on the slides and there is a pick and mix of different tasks to select from for your students. -Answer slides included for self-assessment -Next lesson Friction and Drag https://www.tes.com/teaching-resource/resource-12712526 www.tes.com/teaching-resources/shop/Dr_Troilo

Key stage 3 ~ year 8 ~ complete revision lesson for Chemistry C1a (The Periodic Table). This lesson covers the major topics from this unit and can be used to revise for end of topic tests or to address knowledge gaps identified in the end of topic assessments. In this lesson students will revise: Metals and non-metals Groups and periods The elements of groups 1, 7 and 0 Displacement reactions Recap of types of reaction from previous year (neutralisation, displacement, combustion/oxidation and thermal decomposition) Practice conservation of mass Practice balancing equations -Return to the start of the topic https://www.tes.com/teaching-resource/resource-12772671 www.tes.com/teaching-resources/shop/Dr_Troilo

Key stage 3 ~ year 7 ~ complete lesson on chemical formulae. In this lesson students will learn the chemical names and formulae of some common compounds. They will also learn to interpret chemical formulae and predict some simple formulae based on names. Extension questions are included on the slides and there is a pick and mix of different tasks to select from for your students. This lesson includes: -Title slide with learning objectives -Starter task -Group reading (literacy) -Keywords (vocabulary: dioxide, monoxide, chloride, fluoride and relative number of atoms) -Task boxes -Numeracy task -Consolidation exercise -Answer slides included -Next lesson Revision https://www.tes.com/teaching-resource/resource-12687743 www.tes.com/teaching-resources/shop/Dr_Troilo