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! :)

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.

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! :)

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: Draw a simple reaction profile diagram for exothermic and endothermic reactions. Define and label activation energy on a reaction profile diagram. Explain that the activation energy is the energy needed for a reaction to occur. Includes diagrams, explanations, 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: Describe the reaction between metals and oxygen and write the word and symbol equation for this. Describe the reaction between metals and water and write the word and symbol equation for this. Deduce the order of reactivity for metals reacting with oxygen and with water. Includes questions, answers, word equation practice and chemical symbol equation practice. This is made for a GCSE chemistry class.

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.

Learning objectives: To describe how temperature affects the rate of reaction. To use collision theory to explain how changing temperature alters the rate of reaction.

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.

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 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 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.

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 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! :)

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).