Students will create a lab report on the osmosis potato practical.

Students will research and fill in 2 worksheets on organisms that went extinct in Qatar.

Students can practise calculating surface area to volume ratios. Answers are provided.

Practice calculating magnification, image size and real size with these tiered questions. Answers included. If you could spare 5 minutes, please review this resource, to help my online presence grow! :)

26 mark quiz on cells and microscopes. Includes questions about: Calculating total magnification. Taking a measurement to calculate the actual size of a specimen. Animal cells, plant cells, prokaryotic cells. Light and electron microscopes. Mark scheme included.

This PowerPoint resource provides an engaging middle school science lesson focusing on the investigation of energy content in different types of food. It offers a hands-on approach to understanding energy transfer, scientific methods, and the interpretation of experimental results. Key learning objectives: Designing and conducting an experiment to measure the energy content of various foods by observing temperature changes in water. Understanding variables in scientific experiments: independent, dependent, and control. Interpreting data through bar graphs and drawing conclusions from experimental results. Resource features: The lesson begins with a thought-provoking starter activity to activate prior knowledge. Students identify scientific apparatus and answer preliminary questions about the experiment setup. Core topics include: Energy Measurement in Food: Introduces the concept of burning food under a boiling tube containing water to measure the energy released, with the rise in water temperature serving as an indicator. Experiment Setup and Safety: Details the use of equipment such as a mounted needle, Bunsen burner, thermometer, and boiling tube, with an emphasis on safety procedures like using goggles and handling hot objects carefully. Variables and Methodology: Students identify variables: Independent Variable: Type of food burned. Dependent Variable: Temperature change in water. Control Variables: Volume of water, starting water temperature, distance between food and boiling tube. Step-by-step guidance is provided for writing a method using precise instructions and scientific language. Interactive activities: Predicting which food will release the most energy and completing data tables during the experiment. Plotting temperature changes in bar graphs and answering questions about data trends. Reflecting on experimental limitations, such as incomplete burning of food or inconsistent starting water temperatures, and suggesting improvements like repeating trials and controlling variables. The lesson concludes with an evaluation section where students summarize findings, address reliability concerns, and write a concise conclusion about which food had the highest energy content. File details: This editable ‘.pptx’ file aligns with middle school science curricula. Updated in January 2025, it features clear visuals, interactive tasks, and guided instructions, making it an essential resource for teaching experimental design and energy transfer concepts.

This PowerPoint resource provides a comprehensive and engaging lesson for middle school students on understanding the energy content in food, how it is measured, and its relationship to daily activities and energy requirements. Key learning objectives: Identifying energy values in food items and understanding how energy is stored in different foods. Comparing the energy in food with the energy needed for various activities. Recognizing how factors like age, gender, and activity levels influence energy requirements. Resource features: The lesson begins with a starter activity to activate prior knowledge, prompting students to consider where energy comes from, name high-energy and low-energy foods, and compare the energy needs of different individuals, such as an athlete and a businessman. Key concepts are introduced with clear explanations and relatable examples: What is Energy in Food? Energy in food is measured in kilojoules (kJ). Students learn that 1 kilojoule equals 1,000 joules and explore the variation in energy content across different foods like chocolate, apples, and nachos. Food Labels and Energy Content: Examples of food packaging labels are used to identify and compare the energy content of common foods. Students calculate energy values per 100g and evaluate which foods are more energy-dense. Energy Needs and Activities: Students match activities (e.g., sleeping, playing football, watching TV) to their respective energy requirements and calculate energy usage for specific durations. Interactive tasks include: Completing tables to compare energy in various foods. Analyzing energy requirements for different activities and individuals based on provided data. Reflective questions to explore how diet and lifestyle choices affect energy balance. The lesson concludes with a plenary activity reinforcing key terms and concepts, such as “joules,” “respiration,” and “energy balance.” File details: This editable ‘.pptx’ file aligns with middle school science curricula and supports both theoretical understanding and practical application. It features structured explanations, real-world examples, and interactive tasks, making it an essential resource for teaching about energy in food and its role in daily life.

This PowerPoint resource provides a comprehensive lesson on the process of genetic engineering, its application to crop production, and the associated benefits and risks. It is ideal for high school biology or science classes focused on genetic modification and biotechnology. Key learning objectives: Describing the process of genetic engineering, including the selection of desirable characteristics, gene extraction, and DNA modification. Explaining how genetic engineering is used to develop genetically modified (GM) crops with enhanced traits such as pest resistance, frost resistance, and increased nutritional value. Evaluating the potential advantages and disadvantages of GM crops, including their impact on agriculture, food security, and the environment. Resource features: The lesson begins with a starter activity reviewing genetic concepts like alleles and inheritance, helping students build a foundation for understanding genetic modification. Students are introduced to the steps of genetic engineering with engaging examples, including: Frost-Resistant Tomatoes: Using antifreeze genes from arctic flounder. Golden Rice: Incorporating a gene from carrots to produce beta carotene, addressing vitamin A deficiencies. Herbicide-Resistant Corn: Enhancing resistance to herbicides, allowing for higher yields. Key activities include: Matching steps in the genetic engineering process to their correct order. Discussing the advantages (e.g., increased yield, resistance to pests and herbicides, enhanced nutritional value) and disadvantages (e.g., long-term health concerns, environmental risks, and socioeconomic implications) of GM crops. Sorting real-world scenarios into categories of benefits and challenges, encouraging critical thinking and debate. The lesson concludes with reflective tasks, including evaluating case studies and considering the ethical implications of GM technology in agriculture. File details: This editable ‘.pptx’ file aligns with biology and science curricula and supports classroom discussions and critical analysis. It includes clear visuals, real-world applications, and interactive activities, making it an essential resource for teaching genetic engineering and its role in modern agriculture.

This PowerPoint resource provides an engaging and comprehensive lesson on the factors influencing variation within species, focusing on genetic inheritance and environmental effects. Designed for high school biology classes, this lesson incorporates real-world examples and data analysis to deepen understanding. Key learning objectives: Defining variation and categorizing human traits as inherited, environmental, or a combination of both. Exploring examples of variation within a species, such as hair color, height, and weight. Interpreting data from twin studies to differentiate the influences of genetics and the environment. Understanding the challenges scientists face when studying identical twins and long-term human development. Resource features: The lesson begins with a starter activity prompting students to list differences between individuals, such as eye color and body weight, to activate prior knowledge about variation. Key concepts include: Inherited Characteristics: Traits passed from parents to offspring through genes, such as blood type and natural hair color. Environmental Characteristics: Traits influenced by external factors, such as scars and spoken language. Combination of Factors: Characteristics affected by both genetics and the environment, such as height or intelligence. Students engage with practical activities, such as sorting traits into categories and analyzing case studies involving identical twins raised together versus apart. The lesson highlights real-world challenges in conducting twin studies, including ethical concerns, rare case availability, and the extended timescales required for observation. Interactive tasks include data interpretation, answering reflective questions, and completing gap-fill exercises about twin studies. Students also explore the implications of these studies for understanding human development. File details: This editable ‘.pptx’ file aligns with biology curricula and supports classroom discussions and independent analysis. It features clear visuals, real-world examples, and guided activities, making it an essential resource for teaching variation and its causes.

This PowerPoint resource provides an engaging lesson designed to teach students about reflex actions, their importance in the human body, and the stages of a reflex arc. It is tailored for high school biology classes focusing on the nervous system and homeostasis. Key learning objectives: Describing the stages involved in a reflex action, from stimulus detection to the final response. Identifying the roles of stimuli, receptors, coordination centers, and effectors in reflex actions. Understanding how reflexes enable rapid, involuntary responses to protect the body from harm. Resource features: The lesson begins with a starter activity reviewing homeostasis and examples of reflexes, prompting students to think about the internal conditions maintained by the body and why they need to stay constant. Key topics include: Stimuli and Receptors: Students learn about stimuli as changes in the environment and receptors as specialized cells that detect stimuli (e.g., light, sound, or temperature) and generate electrical impulses. Coordination Centers and Effectors: The roles of the brain, spinal cord, and other organs as coordination centers are explained, along with how effectors (muscles and glands) respond to signals. Reflex Arc: The sequence of events in a reflex arc is broken down into clear steps, using examples like touching a hot object. Students identify and arrange the stages of a reflex arc in the correct order, reinforcing their understanding. Interactive tasks include gap-fill exercises, labeling diagrams of reflex arcs, and answering reflective questions about the role of reflex actions in daily life. File details: This editable ‘.pptx’ file aligns with biology curricula and supports theoretical and practical learning. It includes clear visuals, practical examples, and interactive activities, making it an essential resource for teaching reflex actions and their role in the nervous system.

This PowerPoint resource provides a comprehensive lesson on the importance of biodiversity, the consequences of extinction, and strategies for conservation. Designed for middle school science classes, it encourages students to appreciate the variety of life on Earth and understand the actions necessary to protect endangered species. Key learning objectives: Defining biodiversity as the variety of species in an ecosystem and explaining its importance for ecosystem stability and human survival. Understanding the meaning of “endangered species” and the reasons behind species extinction. Exploring techniques for preventing extinction, such as conservation efforts, captive breeding programs, and gene banks. Evaluating the advantages and disadvantages of conservation strategies. Resource features: The lesson begins with a starter activity to activate prior knowledge by asking questions such as “What is extinction?” and “Why is biodiversity important?” Key topics are introduced with clear explanations and relatable examples: What is Biodiversity? Explains biodiversity as the variety of species in an ecosystem, comparing biodiverse regions like jungles to less biodiverse areas like deserts or polar regions. Importance of Biodiversity: Highlights how ecosystems with high biodiversity are more stable and adaptable to change, offering benefits like food, shelter, and medicine for humans. Conservation Methods: Discusses gene banks (seed, tissue, pollen, and cryobanks), captive breeding, and protecting natural environments. Advantages and disadvantages are outlined, such as creating stable populations versus challenges like funding and lack of natural survival skills. Endangered Species in Qatar: Examples include the Arabian Oryx, desert monitor lizard, and Qatar dugong, fostering a local connection. Interactive activities include: Labeling and matching tasks related to conservation techniques. Reflective questions on the consequences of extinction and the role of governments in conservation. Evaluating pros and cons of conservation efforts through class discussions. The lesson concludes with a plenary activity to review learning objectives, ensuring students can define endangered species, explain conservation strategies, and describe techniques for preventing extinction. File details: This editable ‘.pptx’ file aligns with middle school science curricula. It features structured content, clear visuals, and interactive tasks, making it an essential resource for teaching biodiversity and conservation.

This PowerPoint resource provides an engaging and interactive lesson on understanding food webs, their construction, and their importance in representing feeding relationships within ecosystems. It is designed for middle school science classes and builds on foundational knowledge of food chains. Key learning objectives: Defining food webs and explaining their importance in showing the complexity of feeding relationships. Constructing food webs by combining multiple food chains, including producers, primary consumers, secondary consumers, and tertiary consumers. Understanding why food webs give a more accurate representation of ecosystems than individual food chains. Exploring energy transfer and energy loss in ecosystems. Resource features: The lesson begins with a starter activity that revisits food chains. Students analyze a simple food chain to identify the producer, consumers, and carnivores, and predict the impact of population changes, such as a decrease in small birds on hawks. Key topics include: Food Chains vs. Food Webs: A food chain shows a linear path of energy transfer, while food webs demonstrate interconnected feeding relationships. Energy Loss: Explains how energy is lost at each trophic level through movement, growth, and heat, using real-world examples like the Qatar food chain. Constructing Food Webs: Students combine multiple food chains into a food web, using producers as starting points and adding connections between consumers. Interactive activities include: Drawing food webs based on provided organisms and scenarios. Answering questions to identify producers, primary consumers, secondary consumers, and top predators. Completing challenges like explaining energy loss along a food chain and analyzing which organism holds the most energy. The plenary reinforces learning with review questions, encouraging students to articulate their understanding of food webs and energy flow. File details: This editable ‘.pptx’ file aligns with middle school science curricula and supports theoretical and practical learning. It includes clear visuals, guided activities, and interactive challenges, making it an essential resource for teaching food webs and their role in ecosystems.

This PowerPoint resource introduces students to the foundational concepts of homeostasis, its importance, and how it is maintained in the human body. Designed for high school biology classes, this lesson emphasizes the role of the nervous system, hormones, and reflexes in maintaining internal conditions. Key learning objectives: Defining homeostasis as the maintenance of a constant internal environment in the body. Identifying internal conditions that need regulation, such as temperature, water content, and blood sugar levels, and understanding why these are vital for survival. Explaining how homeostasis is controlled through the nervous system and hormones, including reflex actions as rapid, involuntary responses. Resource features: The lesson begins with a thought-provoking starter activity prompting students to consider how the body responds to external and internal changes. Core concepts are introduced with clear visuals and real-world examples, such as: Why Homeostasis is Important: Exploring how deviations in temperature or blood sugar affect enzyme function and cellular processes. Control Mechanisms: Understanding how coordination and control systems like the central nervous system (CNS) and hormones maintain internal balance. Reflex Actions: Highlighting their role in protecting the body from harm, using relatable scenarios like touching a hot surface or shivering in cold temperatures. Interactive activities include identifying voluntary and involuntary actions, completing gap-fill exercises to reinforce definitions, and answering review questions on homeostasis and its control mechanisms. Students also explore real-life applications, such as the significance of insulin in regulating blood sugar. File details: This editable ‘.pptx’ file aligns with biology curricula and supports both theoretical learning and classroom discussion. It includes structured explanations, practical examples, and interactive activities, making it an essential resource for understanding homeostasis and its principles.

This PowerPoint resource provides an engaging lesson designed to teach students the principles of osmosis, its definition, and its role in biological systems. It is ideal for middle and high school biology classes focusing on cellular processes and water movement. Key learning objectives: Defining osmosis as the diffusion of water from a dilute solution to a concentrated solution through a partially-permeable membrane. Predicting whether water will enter or leave cells by osmosis based on the concentration of solutions. Understanding the effects of osmosis on animal and plant cells, including bursting, shrinking, turgidity, and plasmolysis. Resource features: The lesson begins with a starter activity revisiting diffusion, the substances involved in respiration, and adaptations of the small intestine and lungs for diffusion. These concepts provide a strong foundation for understanding osmosis. Key topics include: Osmosis Definition: Students explore how water moves across cell membranes, with diagrams illustrating dilute and concentrated solutions. Effects on Animal Cells: Examples show how cells can swell and burst or shrink depending on the surrounding solution’s concentration. Effects on Plant Cells: Discussions on turgid and flaccid cells explain how water movement affects plant rigidity, leading to wilting or plasmolysis. Practical Investigation: Students predict and observe water movement using visking tubing filled with sugar solutions, modeling osmotic effects. Interactive tasks involve diagram completion, labeling plant and animal cell structures, and predicting osmosis outcomes in given scenarios. Students also analyze the importance of osmosis in processes like desalination and plant water support. File details: This editable ‘.pptx’ file aligns with biology curricula and supports both classroom instruction and independent learning. It includes clear visuals, practical activities, and guided questions, making it an essential resource for teaching osmosis and its applications.

This PowerPoint resource provides an engaging and comprehensive lesson introducing the structure, function, and importance of the human digestive system. It is designed for middle school biology or science classes, combining clear explanations with interactive activities to make learning accessible and enjoyable. Key learning objectives: Defining digestion as the breakdown of large, insoluble food molecules into smaller, soluble molecules for absorption into the bloodstream. Identifying and labeling the main parts of the digestive system, including the mouth, oesophagus, stomach, small intestine, large intestine, liver, gallbladder, and pancreas. Explaining the role of mechanical and chemical digestion in breaking down food, emphasizing enzymes and their functions. Resource features: The lesson begins with a starter activity designed to activate prior knowledge, asking students to recall nutrients and food tests (e.g., iodine for starch, Benedict’s solution for sugars). Key topics are introduced with visuals and detailed explanations: Mouth: Demonstrates mechanical digestion (chewing) and the action of salivary enzymes. Oesophagus: Explains peristalsis as the wave-like muscle contractions that move food. Stomach: Covers muscular churning, enzyme action, and the role of hydrochloric acid in killing bacteria. Small Intestine: Focuses on enzyme production and nutrient absorption through villi. Large Intestine: Highlights water absorption and the formation of faeces. Liver and Gallbladder: Explains bile production, its role in fat emulsification, and storage. Pancreas: Discusses its role in secreting digestive enzymes into the small intestine. Interactive activities include: Labeling diagrams of the digestive system. Answering reflective questions about the functions of each organ. Completing flow diagrams that trace the path of food through the digestive system. The plenary consolidates learning with review questions about the digestive system’s structure and function. File details: This editable ‘.pptx’ file aligns with middle school biology curricula. It includes structured content, clear visuals, and practical activities, making it an essential resource for teaching the digestive system and its role in human health.

This PowerPoint resource provides an engaging introduction to food chains, the transfer of energy in ecosystems, and the roles of organisms within these chains. Designed for middle school science classes, it emphasizes understanding fundamental ecological relationships and energy flow. Key learning objectives: Defining key terms such as producer, consumer, herbivore, carnivore, omnivore, predator, and prey. Describing what a food chain represents and understanding the direction of energy transfer. Creating food chains and identifying the roles of different organisms within them. Resource features: The lesson begins with a starter activity where students build a food chain using specific organisms (e.g., grass, grasshopper, frog, snake, hawk) and answer questions about the roles of these organisms. Key concepts are introduced with clear explanations and examples: What is a Food Chain? Explains how food chains show the transfer of energy from one organism to another, starting with producers and moving through various consumer levels. Roles in the Food Chain: Detailed definitions and examples of producers (e.g., grass), primary consumers (e.g., grasshopper), secondary consumers (e.g., frog), tertiary consumers, and top predators (e.g., hawk). Arrows in Food Chains: Emphasizes that arrows show the direction of energy flow, not who eats whom. Interactive tasks include: Identifying and labeling roles in given food chains. Completing diagrams by adding appropriate arrows and organisms. Matching ecological terms with their definitions. Creating a custom food chain, including humans, and labeling each component’s role. The plenary encourages students to reflect on the day’s learning objectives, ensuring they can define key terms, describe the purpose of a food chain, and construct their own examples. File details: This editable ‘.pptx’ file aligns with middle school science curricula. It includes structured explanations, real-world examples, and interactive tasks, making it an essential resource for teaching food chains and energy flow in ecosystems.

This PowerPoint resource provides a hands-on and interactive lesson that teaches students how to plan and carry out an investigation into the physiological effects of exercise on breathing rate. Designed for middle school science classes, this lesson emphasizes practical skills and data analysis in a real-world context. Key learning objectives: Explaining why breathing rate increases during exercise, linking it to the body’s demand for oxygen and the removal of carbon dioxide. Planning and conducting an investigation to measure how different activity levels (low, moderate, high) impact breathing rates. Recording and analyzing data to draw conclusions about the relationship between exercise intensity and breathing rate. Resource features: The lesson begins with a starter activity to activate prior knowledge, prompting students to answer questions about gas exchange, oxygen transport, and the word equation for aerobic respiration. This prepares students to understand why breathing rates change during exercise. Key activities include: Practical Investigation: Students plan an experiment with three levels of activity: sitting still, walking, and jogging/star jumps. They use a stopwatch to measure their breathing rate over a set time, repeat measurements for reliability, and calculate averages. Data Analysis: Results are recorded in a table and plotted on a bar graph. Students analyze patterns and discuss why higher intensity activities result in higher breathing rates. Critical Thinking: Reflection questions encourage students to consider experimental limitations, such as human error or insufficient resting time, and propose improvements. The lesson concludes with a review activity where students describe their findings, explain physiological changes during exercise (e.g., increased oxygen demand, carbon dioxide removal), and relate the results to aerobic respiration. File details: This editable ‘.pptx’ file aligns with middle school science curricula. It includes clear instructions, practical guidance, and interactive activities, making it an essential resource for teaching scientific investigation and the physiological effects of exercise.

This PowerPoint resource provides a detailed lesson on the roles of stomata and guard cells, their structure and function, and how they contribute to a leaf’s adaptations for photosynthesis. It is designed for middle and high school biology classes focused on plant biology and photosynthesis. Key learning objectives: Identifying and labeling stomata and guard cells in a diagram. Describing the roles of stomata and guard cells, including how they open and close to regulate gas exchange. Observing stomata and guard cells under a microscope using a hands-on method. Understanding the general adaptations of a leaf for efficient photosynthesis. Resource features: The lesson begins with a starter activity prompting students to recall key concepts related to photosynthesis, including its reactants, products, and overall importance. Core topics are presented with clear explanations and visuals, including: Stomata and Guard Cells: Definitions of stomata as pores on the surface of leaves and guard cells as the structures controlling their opening and closing. Students explore the mechanism of water intake and loss in guard cells, leading to stomatal movement. Gas Exchange: Understanding how carbon dioxide, oxygen, and water vapor move through stomata to facilitate photosynthesis and transpiration. Microscope Activity: A step-by-step guide for observing stomata on a leaf using clear nail varnish and cellotape to prepare slides for analysis under a microscope. The lesson also highlights key leaf adaptations for photosynthesis, such as a large surface area, chlorophyll for light absorption, thin structure for short diffusion distances, and veins for water and glucose transport. Interactive activities include labeling diagrams, matching adaptations to functions, and answering review questions on stomatal function and leaf structure. File details: This editable ‘.pptx’ file aligns with biology curricula and supports both theoretical and practical learning. It includes structured guidance, practical investigations, and interactive tasks, making it an essential resource for teaching stomata and their role in photosynthesis.

This PowerPoint resource provides a comprehensive lesson on the short-term and long-term effects of alcohol consumption, its impact on the body and brain, and the dangers of drinking alcohol during pregnancy. Designed for middle and high school science or health education classes, it focuses on understanding the risks and promoting informed decision-making. Key learning objectives: Describing the short-term effects of alcohol, such as impaired judgment, reaction time, and muscle control. Understanding the long-term consequences of excessive alcohol consumption, including liver cirrhosis, liver cancer, and brain damage. Exploring the impact of alcohol on unborn babies and the risks of fetal alcohol syndrome (FAS). Resource features: The lesson begins with a starter activity featuring true/false statements to assess students’ preconceptions about alcohol, such as its addictive properties and its effects on the nervous system. Key topics are introduced with clear explanations and engaging visuals: What is Alcohol? Students learn that alcohol contains ethanol, a depressant that slows down the nervous system and affects brain function. Short-Term Effects: Includes sleepiness, impaired judgment, blurred vision, and decreased reaction times. Long-Term Effects: Discusses conditions like liver cirrhosis, liver cancer, and irreversible brain damage in chronic drinkers. Alcohol and Pregnancy: Explains how alcohol passes through the placenta to the fetus, increasing the risk of miscarriage, stillbirth, and FAS, which can lead to developmental delays and physical deformities. Interactive tasks include filling in missing words, completing a mind map on alcohol’s effects, and designing a poster to raise awareness about the dangers of drinking alcohol during pregnancy. Students also answer reflection questions to reinforce learning. File details: This editable ‘.pptx’ file aligns with health education and science curricula. It features structured explanations, real-world examples, and interactive activities, making it an essential resource for teaching about alcohol and its impacts on health.

This PowerPoint resource provides a comprehensive and interactive lesson exploring the relationship between lifestyle choices, health, and disease. Designed for middle and high school biology or health education classes, it emphasizes the importance of a balanced diet, regular exercise, and maintaining a healthy body weight. Key learning objectives: Defining obesity and understanding its measurement using Body Mass Index (BMI). Analyzing the relationship between obesity and health problems, including type 2 diabetes, cardiovascular disease, and high blood pressure. Exploring the benefits of regular exercise and balanced nutrition in preventing and managing obesity-related diseases. Evaluating data to establish causal links between lifestyle choices and health outcomes. Resource features: The lesson begins with a starter activity encouraging students to address common misconceptions about obesity, exercise, and diet through true/false questions. Key topics include: What is Obesity? Defining obesity as a condition of excess body fat, with BMI used as a measurement tool. Worked examples guide students in calculating BMI and interpreting its implications. Health Risks of Obesity: Exploring how obesity contributes to type 2 diabetes, coronary heart disease, and other health issues. Visual aids and data graphs help students understand trends in obesity and related diseases. Benefits of Exercise: Highlighting how regular physical activity improves heart health, increases metabolic rates, and reduces the risk of chronic diseases. Preventative Measures: Practical strategies for reducing obesity rates, including balanced diets, increased physical activity, and public health initiatives. Interactive tasks include: Calculating BMI from provided data and determining health implications. Interpreting graphs showing the relationship between BMI and type 2 diabetes. Reflective questions prompting students to link lifestyle choices with health outcomes and propose preventative solutions. File details: This editable ‘.pptx’ file aligns with health education and biology curricula and supports both classroom instruction and independent study. It includes real-world data, structured explanations, and practical activities, making it an essential resource for teaching the links between obesity, diet, and exercise.