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.

PowerPoint that covers the following learning objectives: Define electrolysis. Describe electrolysis in terms of the movement of ions. Explain why electrolysis can only occur when an ionic compound is molten or in aqueous solution. This is made for a KS4 GCSE Chemistry class. Includes diagrams, a demonstration activity, questions and answers.

PowerPoint that covers the following learning objectives: Describe the limitations of using dot and cross, ball and stick (2D and 3D) and displayed formula diagrams to represent simple covalent molecules. Define intermolecular forces. Explain why simple molecules have low melting and boiling points. Explain why simple molecules do not conduct electricity. This is made for a KS4 chemistry class. Includes questions, answers and explanations.

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

PowerPoint for a GCSE KS4 science class. Includes questions and answers. Covers the following learning objectives: Describe the composition of crude oil. Define what is meant by a hydrocarbon. Define what is meant by an alkane. State the names and describe the first four alkanes. Apply a general formula to generate a molecular formula and a displayed formula for a straight-chain alkane.

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

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 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 effects of alcohol on the body and the long-term effects of drinking alcohol. This is made for a GCSE KS4 science class. The following learning objectives are covered: Describe the short term and long term effects of drinking alcohol. Describe the effects of alcohol on unborn babies. Includes questions, answers, a mind-map to fill in, a short comprehension and a poster opportunity.

PowerPoint that covers the following learning objectives: Predict the products of the electrolysis of a solution. Describe how to electrolyse brine in terms of ions moving. Explain the electrolysis of brine using half equations, classifying reactions at the electrode as oxidation or reduction. 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! :)

PowerPoint that covers the following learning objectives: Conduct an investigation into what happens when aqueous solutions are electrolysed using inert electrodes. Analyse results of the experiment. Includes equipment list, method, a results table, safety guidance, a video, 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! :)

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

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

Appropriate for AS level physics. Print double sided (flip along long side).