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! :)

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 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.

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: 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: 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! :)

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 the classification of the reactions at each electrode as oxidation or reduction by writing half equations. Explain why cryolite is added to aluminium oxide in the industrial extraction of aluminium. Includes questions, answers, diagrams, explanations and a quiz. 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! :)

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! :)

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 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: 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.

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: 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: Define conservation of mass. Safely complete an experiment on conservation of mass. Explain any observed changes in mass in non-enclosed systems during a chemical reaction given the equation for the reaction and explain these changes in terms of the particle model. Includes an experiment, examples, diagrams, 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 metallic bonding. Define an alloy. Explain in detail, including labelled diagrams, how alloying affects the structure and bonding in metals. Explain the properties of metals (malleability, melting point, thermal and electrical conductivity). This is made for a GCSE chemistry class. Includes diagrams, explanations, questions and answers.

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! :)

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).

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