Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format: Specification Point 1.55C - Understand why covalent compounds do not conduct electricity. Specification Point 1.56C - Understand why ionic compounds conduct electricity only when molten or in aqueous solution. Specification Point 1.57C - Know that anion and cation are terms used to refer to negative and positive ions respectively. Specification Point 1.58C - Describe experiments to investigate electrolysis, using inert electrodes, of molten compounds and aqueous solutions and to predict the products. Specification Point 1.59C - Write ionic half-equations representing the reactions at the electrodes during electrolysis and understand why these reactions are classified as oxidation or reduction. Specification Point 1.60C - Practical: investigate the electrolysis of aqueous solutions. Complete set of Chapter 3 Lessons are available.

Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format: Specification Point 2.28 - Describe the use of litmus, phenolphthalein and methyl orange to distinguish between acidic and alkaline solutions. Specification Point 2.29 - Understand how the pH scale can be used to classify solutions as strongly acidic, weakly acidic, neutral, weakly alkaline and strongly alkaline. Specification Point 2.30 - Describe the use of universal indicator to measure the approximate pH value of an aqueous solution. Specification Point 2.31 - Know that acids in aqueous solution are a source of hydrogen ions and alkalis in a aqueous solution are a source of hydroxide ions. Specification Point 2.32 - Know that alkalis can neutralise acids. Complete set of Chapter 5 Lessons are available.

Complete set of companion PDF worksheets for Edexcel IGCSE Chemistry (4CH1) Chapter 5 - Acids, Bases and Salts. Contains short answer questions, an activity requiring lateral thinking and exam-style questions. Five worksheets included: 21 - Acids and Alkalis 22 - Titrations 23 - Acids, Bases and Salts 24 - Making Salts 25 - Chemical Tests

Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format: Specification Point 2.27 - Describe the structure and function of the human alimentary canal, including: the mouth oesophagus, stomach, small intestine, large intestine and pancreas. Specification Point 2.28 - Understand how food is moved through the gut by peristalsis. Complete set of Chapter 2 Lessons are available.

Companion PDF worksheet for Edexcel IGCSE Biology Lecture 21 - Transport Mechanisms. Contains short answer questions, an activity requiring lateral thinking and exam-style questions. Specification Point 2.51 - Understand why simple, unicellular organisms can rely on diffusion for movement of substances in and out of the cell. Specification Point 2.52 - Understand the need for a transport system in multicellular organisms. Specification Point 2.54 - Describe the role of xylem in transporting water and mineral ions from the roots to other parts of the plant. Specification Point 2.53 - Describe the role of phloem in transporting sucrose and amino acids between the leaves and other parts of the plant. Complete set of Chapter 3 Worksheets are available.

Companion PDF worksheet for Edexcel IGCSE Biology Lecture 25 - The Heart. Contains short answer questions, an activity requiring lateral thinking and exam-style questions. Specification Point 2.65 - Describe the structure of the heart and how it functions. Specification Point 2.66 - Explain how the heart rate changes during exercise and under the influence of adrenaline. Specification Point 2.67 - Understand how factors may increase the risk of developing coronary heart disease. Complete set of Chapter 3 Worksheets are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 1.1 - Understand the features of a drainage basin: source, watershed, channel network and mouth. Complete set of Chapter 1 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 1.4 - Assessment of coastal fieldwork skills. Complete set of Chapter 4 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 4.2 - Understand informal employment: causes (economic development, rural-urban migration) and characteristics (advantages and disadvantages) in a named megacity. Complete set of Chapter 5 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 5.2 - Understand characteristics of a rural environment: landscape, climate, settlement, population, land use, employment, accessibility, management (development or conservation). Complete set of Chapter 6 Lectures are available.

Complete set of concise, modern presentations for Edexcel IGCSE Geography (4GE1) Chapter 5 - Economic Activity and Energy. Contains colour coded specification points with custom vector graphics. Seven presentations included: 29 - Economic Sectors and Employment 30 - Location of Economic Sectors 31 - Changes in Economic Sectors 32 - Informal Employment 33 - Populations and Resources 34 - Energy 35 - Energy Management

A useful resource for students to practice their knowledge and examination technique for future external assessments. This is for the following paper: 4CH1 - 1C This mock is based on our 2023 Predicted Papers. These questions are completely original and have been designed from scratch. There has been no reuse of previous exam questions. Our mock paper follows the format of the true Edexcel IGCSE Chemistry 1C paper closely. It is also the exact duration and mark-count, with questions of increasing difficulty. A mark scheme is also attached. The paper covers the following specification points: • Topic 1b - Elements, compounds and mixtures (1.8 - 1.10) • Topic 1e - Chemical formulae, equations and calculations (1.25 - 1.32) • Topic 1f - Ionic bonding (1.37 – 1.41) • Topic 2a - Group 1 (2.1 – 2.3) • Topic 2d - Reactivity series (2.15 – 2.20) • Topic 2h - Chemical tests (2.44 – 2.50) • Topic 3a - Energetics (3.1 - 3.4) • Topic 4b - Crude oil (4.7 – 4.12) • Topic 4c - Alkanes (4.19 – 4.22) Disclaimer: This document was created by department heads with many years of experience teaching the Pearson Edexcel IGCSE Chemistry course. We cannot however guarantee that it is an accurate representation of upcoming examinations and students should not treat it as such. Please use this as an aid, alongside other methods of revision.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.3.9.1 - Carboxylic acids and esters. Complete set of Chapter 8 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 2.7 - Identify the chemical elements present in carbohydrates, proteins and lipids (fats and oils). Specification Point 2.8 - Describe the structure of carbohydrates, proteins and lipids as large molecules made up from smaller basic units; starch and glycogen from simple sugars, proteins from amino acids and lipids from fatty acids and glycerol. Complete set of Chapter 1 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 2.51 - Understand why simple, unicellular organisms can rely on diffusion for movement of substances in and out of the cell. Specification Point 2.52 - Understand the need for a transport system in multicellular organisms. Specification Point 2.53 - Describe the role of phloem in transporting sucrose and amino acids between the leaves and other parts of the plant. Complete set of Chapter 3 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 2.94 - Understand the sources, roles and effects of the following hormones: adrenaline, insulin, testosterone, progesterone and oestrogen. Complete set of Chapter 4 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.35B - Understand how a change in DNA can affect the phenotype by altering the sequence of amino acids in a protein. Specification Point 3.36B - Understand how most genetic mutations have no effect on the phenotype, some have a small effect and rarely do they have a significant effect. Specification Point 3.37B - Understand that the incidence of mutations can be increased by exposure to ionising radiation (for example, gamma rays, x-rays and ultraviolet rays) and some chemical mutagens (for example, chemicals in tobacco). Complete set of Chapter 5 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.6.1.1 - Survival and response. Complete set of Chapter 6 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.5.1 - Photosynthesis. Complete set of Chapter 5 Lectures are available.