State what conduction is. Describe how conduction happens. Describe how solids are better conductors than liquids.

Enhance your IB Chemistry DP exam preparation with these multiple-choice test papers covering Structures 1.1, 1.2, and 1.3 of the 2025 syllabus. Ideal for teachers and students, this resource includes: A 30-mark Standard Level (SL) paper to be completed in 50 minutes. A 40-mark Higher Level (HL) paper to be completed in 65 minutes. Comprehensive mark schemes for both SL and HL papers. A generic answer sheet for students to record their responses. Perfect for in-class assessments or practice exams, these papers are designed to reflect the new IB Chemistry format for first assessment in 2025. Get your students exam-ready with these structured and time-effective resources!

This PowerPoint resource, Lesson 1 - Rates of Reaction, introduces students to the concept of reaction rates in chemistry. Designed for secondary-level science classes, this resource helps students define key terms such as reactants, products, and rate of reaction, while also exploring methods for measuring reaction rates using real-world examples. The lesson includes engaging activities like graph plotting, calculating gradients, and analyzing reaction data to determine the mean and instantaneous rates of reaction. Students will develop critical analytical skills by interpreting graphs and calculating the gradient of tangents to measure reaction rates at specific points. Key methods for measuring reaction rates, including gas collection, mass loss, and time-to-precipitate formation, are thoroughly explained and accompanied by visual examples. This resource also features interactive starter activities, extension challenges, and plenary tasks, ensuring comprehensive coverage of the topic while catering to varying student abilities. It is compatible with most devices, provided in a .pptx format, and can be used with software like Microsoft PowerPoint or Google Slides. Last updated on 12/12/24, this resource includes updates to video links and questions for better user experience. Perfect for teachers aiming to simplify complex chemistry concepts, this resource is aligned with standard curricula and designed to enhance both classroom and independent learning.

Describe the difference between mass and weight. Describe the forces acting on an object falling through a fluid. Explain what terminal velocity is and when it is reached.

This engaging PowerPoint lesson introduces students to the role of catalysts in chemical reactions, focusing on their definition, function, and real-world applications. Perfectly suited for secondary school chemistry classes, the resource combines clear explanations with practical examples to build a thorough understanding of this essential concept. What’s Included: Learning Objectives: Define a catalyst. Describe how adding a catalyst affects the rate of reaction. Use a reaction profile diagram to explain in detail the effect of adding a catalyst. Starter Activity: Questions to recap basic knowledge, such as what a catalyst is, whether it changes products, and how it affects activation energy. Video Integration: Link to a video explaining catalysts, with guided questions to enhance understanding of industrial processes like the Haber and Contact processes. Key Concepts: How catalysts provide an alternative reaction pathway with lower activation energy. Examples of catalysts in real life: enzymes, catalytic converters, and industrial reactions. Discusses the cost-efficiency and environmental benefits of using catalysts, such as reduced energy requirements. Interactive Activities: Examining reaction profile diagrams and labeling key features. Why Choose This Resource? Aligned with secondary school chemistry curricula, ensuring clarity and relevance. Includes practical, exam-style questions to reinforce learning and assess understanding. Perfect for guided lessons, student-led investigations, or revision sessions. File Type: PowerPoint (.pptx) Updated: December 2024 – Added real-world examples and enhanced visuals for better engagement. Equip your students with the knowledge and skills to understand and apply the principles of catalysts in chemistry, making learning both fun and impactful!

This detailed PowerPoint presentation is an educational resource designed for teaching the process of hydrocarbon cracking to secondary school students studying chemistry. It aligns with curriculum specifications related to hydrocarbons, alkenes, and organic chemistry. The resource introduces key concepts such as the definition of alkenes, their general formula, and their unsaturated nature due to the presence of a double bond. It also covers the process of cracking hydrocarbons, explaining both catalytic and steam cracking methods, and includes relevant equations for students to practice. The lesson provides clear learning objectives, which include defining alkenes and describing the first four alkenes with their molecular formulas and structures. Additionally, the resource explains how to conduct a chemical test for alkenes and outlines the conditions necessary for cracking. Students can engage with the content through interactive starter activities, such as answering questions about hydrocarbons, molecular formulas, and structural representations, which will help them develop a deeper understanding of the topic. The resource further explores real-world applications by discussing the role of cracking in oil refineries. It also addresses the challenges of balancing the supply and demand for various hydrocarbons, providing students with context for how cracking can be used to produce shorter, more useful hydrocarbons from longer chains. The concept of polymerization is also included, explaining how ethene (a product of cracking) is used to create poly(ethene), a widely used plastic material. To enhance the learning experience, the PowerPoint includes multimedia elements, such as links to YouTube videos that demonstrate experiments and the cracking process. The resource is available in PowerPoint format (.pptx) and has been updated to ensure accuracy and relevance. This resource is an ideal teaching tool for educators looking to deliver comprehensive, engaging, and informative lessons on hydrocarbon cracking.

This PowerPoint presentation offers an in-depth exploration of the combustion of hydrocarbons, making it an ideal resource for secondary school chemistry lessons. It covers the fundamental concepts of complete and incomplete combustion, emphasizing their differences, practical applications, and the potential dangers associated with incomplete combustion. The lesson begins with clear learning objectives, including writing and balancing word and symbol equations for hydrocarbon combustion, describing the testing methods for combustion products, and explaining the lethal effects of carbon monoxide produced during incomplete combustion. Starter activities engage students with thought-provoking questions about the properties of hydrocarbons, such as flammability, viscosity, and boiling points relative to chain length. The presentation includes detailed explanations of the chemical reactions involved in combustion, highlighting the oxidation processes of carbon and hydrogen. It provides guidance on how to write equations for complete and incomplete combustion, with examples such as methane, propane, and butane. Tests for identifying combustion products, such as the use of limewater for carbon dioxide and anhydrous copper sulfate for water, are also demonstrated. Key safety aspects are addressed, including the risks of carbon monoxide poisoning, the importance of regular boiler servicing, and the use of carbon monoxide detectors. The resource emphasizes the practical implications of combustion processes, making connections to real-world applications and hazards. Multimedia elements, such as video links, enhance the learning experience by providing visual demonstrations of combustion tests. This PowerPoint file (.pptx) is designed to align with educational specifications, ensuring relevance and clarity for both teachers and students. Updated content makes this an excellent tool for delivering engaging and informative lessons on hydrocarbon combustion.

This PowerPoint presentation provides an insightful exploration of the properties of hydrocarbons, specifically designed for secondary school chemistry lessons. It delves into how the physical and chemical properties of hydrocarbons change with chain length and their implications for real-world applications. The resource begins with clear learning objectives, such as demonstrating the separation of crude oil into fractions through fractional distillation, describing trends in viscosity, flammability, and boiling point as chain length varies, and linking these properties to the practical uses of hydrocarbons. Starter activities engage students with thought-provoking questions, laying the foundation for the lesson. Core concepts are presented through easy-to-follow explanations and interactive activities. The presentation covers key terms, including boiling point, flammability, viscosity, and volatility, with gap-fill exercises to reinforce understanding. It explains how fractional distillation separates hydrocarbons based on boiling points and explores the properties of smaller versus larger hydrocarbons. For instance, smaller hydrocarbons are more volatile and flammable, making them ideal for cooking gases, while larger hydrocarbons are more viscous and suited for road surfacing. The resource also includes practical demonstrations, such as laboratory fractional distillation, supported by linked video content for enhanced understanding. Students are challenged to apply their knowledge by writing methods for separating synthetic crude oil and investigating its fractions’ properties. Available as a PowerPoint file (.pptx), this resource is updated to align with educational standards and offers a comprehensive tool for engaging and educating students about the properties and uses of hydrocarbons.

• Describe the effect of changing the mass or the force acting on an object on the acceleration of that object. • Calculate the force required to cause a specified acceleration on a given mass. • Perform calculations involving the rearrangement of the F = ma equation.

Calculate the stopping distance from the thinking distance and the braking distance • Categorise factors which affect thinking distance, braking distance, and both. • Calculate the braking distance of a car.

• Define what the centre of mass is and identify where it would be in a range of simple shapes. • State that a suspended object will come to rest so that the centre of mass lies below the point of suspension. • Describe an experimental technique to determine the centre of mass of an object with an irregular shape. • Compare the stability of objects to the position of their centre of mass.

Define elastic and non-elastic deformation in materials. Calculate the extension (or compression) of a material using its length and original length. State Hooke’s law and use it to calculate the force required to cause a given extension in a spring using the spring constant. Describe how elastic potential energy is stored when a material is stretched or compressed by a force. Describe force-extension graphs of elastic materials and identify the limit of proportionality. Compare the behaviour of different materials before and after the limit of proportionality.

Describe the motion of an object by interpreting velocity–time graphs. Describe how the gradient of a velocity–time graph represents the acceleration. Calculate the acceleration of an object by calculating the gradient from a velocity–time graph.

Describe the difference between speed and velocity. Calculate the acceleration of an object using the change in velocity and time. Rearrange the acceleration equation to calculate change in velocity or time.

Investigate whether the extension of the spring is proportional to the weight suspended from the spring.

Describe the difference between balanced and unbalanced forces and give examples for both. Identify and calculate resultant forces. Describe situations that are in equilibrium. Explain why the speed or direction of motion of objects can change.

Calculate the resultant force when 2 forces act on an object at an angle.

• Calculate the power of an electrical device. • Practice converting units using kilo, mega and giga prefixes. • Rank electrical appliances in order of power. • Rearrange the electrical power equation to calculate the energy transferred. • Calculate efficiency using input and output power.

Calculate the speed of an object, the time taken to travel a given distance and the distance travelled.

Describe the motion of an object by interpreting distance–time graphs. Describe how the gradient of a distance–time graph represents the speed. Calculate the speed of an object by calculating the gradient from a distance–time graph.