PowerPoint that covers the following learning objectives: Investigate how light travels through a lens. Describe the difference between a convex lens and a concave lens. Identify the focal point in a light ray diagram of a convex lens. This is made for a KS3 science class. Includes questions, answers, diagrams and link to a virtual simulation.

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 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.

PowerPoint that covers the following learning objectives: State that in females the sex chromosomes are XX and in males they are XY. Carry out a genetic cross to show sex inheritance. Define key terms allele, dominant allele, recessive allele, heterozygous, homozygous, genotype and phenotype. This is made for a GCSE biology class. Includes questions, answers, diagrams to practice and explanations.

PowerPoint that covers the following learning objectives: Define what is meant by a mole and the units. Calculate the number of moles or mass of a substance from data supplied. Includes questions, answers, examples and a video. This is made for a GCSE chemistry class.

Practice calculating number of moles, relative formula mass and mass with these tiered questions. Answers included. If you could spare 5 minutes, please review this resource, to help my online presence grow! :)

Students will: Describe changes in particle bonding during changes of state. Differentiate between latent heat of fusion and latent heat of vaporization. Perform calculations involving specific latent heat. Starter Activity: Define key terms: specific heat capacity, internal energy, temperature. Recall the formula for specific heat capacity. Identify various changes of state. Introduction to Concepts: Define latent heat as the energy required for a phase change without a temperature change, focusing on overcoming intermolecular forces. Differentiate between specific latent heat of fusion (solid ↔ liquid) and vaporization (liquid ↔ gas). Discuss the role of energy transfer during state changes (e.g., energy input during melting and boiling, energy release during freezing and condensation). Worked Examples and Practice: Solve problems such as calculating the energy required to change a specific mass of a substance’s state using the formula. Interactive Questions: Use mini whiteboards for multiple-choice questions on changes of state, energy transfers, and misconceptions (e.g., whether temperature changes during state changes). Recap key differences between specific heat capacity and latent heat. Assign calculations for practice, such as determining energy transfer for melting ice or boiling water. This lesson blends theory and practical calculations, preparing students for real-world applications of thermodynamic principles.

This PowerPoint resource, introduces key concepts in chemistry, making it perfect for secondary-level science lessons. Students will learn the differences between pure substances, mixtures, and formulations, supported by engaging definitions, examples, and real-world applications. The resource begins with an interactive starter activity to review key ideas, such as the role of boiling and melting points in determining substance purity. It then delves into the distinctions between elements, compounds, and mixtures, accompanied by examples like mineral water, air, and paracetamol. The lesson also defines formulations as mixtures designed for specific purposes and includes relatable examples, such as toothpaste and paint, with their components and functions detailed. To enhance understanding, the resource incorporates data analysis tasks, allowing students to interpret melting and boiling point ranges to identify substances as pure or impure. Students are challenged to apply their learning through practice and extension questions, ensuring a thorough grasp of the topic. Formatted as a .pptx file, the resource is compatible with PowerPoint and Google Slides, making it accessible across devices. Last updated in December 2024, it includes updated examples and exercises to align with curriculum requirements. Ideal for educators seeking a comprehensive, interactive, and student-friendly resource, this PowerPoint bridges theoretical knowledge and practical understanding, promoting critical thinking and engagement in chemistry topics.

Includes questions, answers, a practical opportunity, diagrams and explanations. This is made for a GCSE biology class.

PowerPoint that covers the following learning objectives: Explain why breathing rate increases during exercise. Plan and carry out an investigation to measure the effect of exercise on breathing rates. This is made for a KS3 level science class. Includes: a mind-map, questions, answers, tables, variables, prediction, method, help with the bar graph, conclusion and evaluation.

Structure and Properties of Simple Covalent Molecules is an engaging and detailed PowerPoint resource designed for GCSE-level chemistry students. This lesson explores the characteristics of simple covalent molecules, their bonding, and their physical properties, aligning with key curriculum standards. The lesson begins with a starter activity reviewing bonding types and drawing dot-and-cross diagrams for water and nitrogen, ensuring students are engaged and prepared for the topic. Learning objectives include: Describing the limitations of different molecular representations (dot-and-cross, ball-and-stick, and displayed formula diagrams). Defining intermolecular forces and their impact on molecular properties. Explaining why simple covalent molecules have low melting and boiling points and why they do not conduct electricity. Core content is enhanced with: Comparisons of molecular representations to highlight their advantages and disadvantages. An introduction to intermolecular forces as attractions between molecules, distinct from covalent, ionic, and metallic bonds. An explanation of how molecule size affects the strength of intermolecular forces and trends in melting and boiling points. Real-world connections, such as why pure water doesn’t conduct electricity but saltwater does. Interactive activities and review questions test students’ understanding of key ideas, including trends in molecular size, bonding properties, and conductivity. Students are challenged to apply concepts to examples like fluorine and bromine, fostering critical thinking. Formatted as a .pptx file, this resource is compatible with most devices and is perfect for classroom teaching or independent learning. It includes modern visuals and tasks to engage students effectively. Ideal for science educators, this resource provides a comprehensive introduction to the structure and properties of simple covalent molecules, building a strong foundation for further studies in chemistry.

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

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

PowerPoint that covers the following learning objectives: Define exothermic and endothermic reaction and distinguish between exothermic and endothermic reactions on the basis of the temperature changes of the surroundings. Describe examples of exothermic and endothermic reactions. Includes questions, activities and answers. For a KS4 GCSE Science class.

Links to videos for GCSE Chemistry revision.

Practice identifying the relative atomic mass and calculating relative formula/molecular mass with these tiered questions. Answers included.

Includes testing for: Cations Anions Gas tests Test for Water Testing for Purity of Water Flame Tests Question on one side, answer on the other. Print double sided (flip along long side of paper).