Learning objectives: Describe the process involved in genetic engineering. Apply knowledge of the process of genetic engineering to explain how certain crops have been genetically modified. Evaluate the potential benefits and risks of GM crops.

PowerPoint that covers the following learning objectives: Describe electrolysis in terms of movement of ions when an ionic compound is molten. Predict the products at each electrode for the electrolysis of a molten ionic compound. Explain whether the reactions at each electrode are oxidation or reduction. Write half equations for oxidation and reduction reactions. This includes diagrams, questions, answers and explanations. This is made for a GCSE chemistry class. If you could spare 5 minutes, please review this resource, to help my online presence grow! :)

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! :)

Practice calculating the percentage by mass of an element in a compound with these tiered questions. Answers included. If you could spare 5 minutes, please review this resource, to help my online presence grow! :)

Learning objectives: To be able to describe how changing concentration affects the rate of reaction. To be able to describe how changing pressure affects the rate of gas phase reactions. To be able to use collision theory to explain how changing concentration or pressure alters the rate of reaction.

Learning objective: Describe the magnetic field produced by a current-carrying wire and use the corkscrew rule to determine the direction of the field around it.

PowerPoint that covers the following objectives: Define covalent bonding. Describe how covalent bonds form. Draw dot and cross diagrams to show covalent bonds in simple covalent molecules. This is made for a GCSE chemistry class. Includes questions, answers, diagrams, explanations and space for the teacher to model how to draw dot and cross diagrams if they wish (with the correct diagram on the next slide).

PowerPoint that covers pathogens, disease and preventing infection. Includes questions, answers, a video and a mind-map. The following learning objectives are covered: State what a pathogen is and the 4 examples of pathogens that cause disease. Describe how bacteria and viruses cause disease. Explain how pathogens are passed from one organism to another, and use this to suggest ways of preventing the spread. This is made for a GCSE KS4 science class.

PowerPoint that covers the following learning objectives: Describe the reaction between metal and acid using an ionic equation. Determine and explain which species is oxidised and which species (metal atom or ion) is reduced in a reaction in terms of electron transfer. Includes questions, answers, examples and explanations. This is made for a GCSE chemistry class. If you could spare 5 minutes, please review this resource, to help my online presence grow! :)

PowerPoint that covers group 0, the noble gases. Suitable for GCSE. Covering what they are, their uses, why they are so unreactive and trends in the group. Includes practice questions and answers.

Learning objectives covered. Demonstrate how to separate crude oil into fractions in a school laboratory. Describe how the trend in viscosity, flammability, and boiling point changes as the length of the hydrocarbon chain changes. Describe how the properties of a fraction of crude oil make it appropriate for its use.

PowerPoint that covers generating electricity by combusting fossil fuels. Includes how fossil fuels are formed, what we use them for, how electricity is generated and the advantages and disadvantages. This is made for a KS3 level class. The starter activity revisits efficiency and power from previous lessons to enhance memory recall.

PowerPoint that covers the following learning objectives: State that aluminium can be extracted from aluminium oxide using electrolysis and write the overall word equation. Describe the electrolysis of aluminium oxide. Explain why cryolite is added to aluminium oxide in the industrial extraction of aluminium. This is made for a KS4 GCSE science (chemistry) class. Includes diagrams, questions, answers, explanations and a video.

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 GCSE smoking. This is for a KS4 GCSE class. Learning objectives: Describe the effects of the harmful substances found in tobacco. Describe the effect of smoking on unborn babies. Includes questions, answers, a short comprehension and a video.

PowerPoint that covers the following learning objectives: Describe and explain what happens when light is refracted. Draw a refraction diagram. Includes diagrams, explanations, questions and answers. If you could spare 5 minutes, please review this resource, to help my online presence grow! :)

PowerPoint that covers the following learning objectives: Write a method for making a soluble salt from a neutralisation reaction involving an insoluble base. Describe why steps in the method are necessary to get pure crystals. Includes questions, answers, a video, method to follow, safety guidance and application questions with answers. This is made for a GCSE chemistry class. If you could spare 5 minutes, please review this resource, to help my online presence grow! :)

PowerPoint that covers the following learning objectives: Describe what the reactivity series is and the order of metals within it. Define what a displacement reaction is. Predict where displacement reactions occur. Write word equations to represent displacement reactions. Includes questions, answers, explanations and examples. This is made for a GCSE chemistry class. If you could spare 5 minutes, please review this resource, to help my online presence grow! :)

PowerPoint that covers the following learning objectives: Explain why bond breaking is endothermic and bond making is exothermic. Explain why a reaction is exothermic or endothermic in terms of the amount of energy needed to break bonds and being released when bonds are formed. Calculate the energy change for a reaction, including the correct unit. Includes diagrams, explanations, examples, questions and answers. This is made for a GCSE chemistry class. If you could spare 5 minutes, please review this resource, to help my online presence grow! :)

Practice finding the Ar of an element and calculating the Mr of a molecule or chemical formula with these tiered questions. Answers included