Learning objectives: To be able to define osmosis. To be able to apply knowledge of osmosis to predict whether water will enter or leave cells by osmosis.

Learning objectives: To be able to describe what food webs show. To be able to combine food chains to form a food web. To be able to explain why a food web gives a more accurate representation of feeding relationships than food chains.

Learning objectives: Investigate the shape of a magnetic field around a bar magnet. Compare the Earth’s magnetic field to that of a bar magnet.

Learning objectives: State what the digestive system is. Describe the structure and function of the main parts of the digestive system.

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 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: 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: 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: Define what is meant by a mole and the units. Calculate the number of moles or mass of a substance from data supplied. Includes questions, answers, examples and a video. 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: Calculate the masses of reactants and products from the balanced symbol equation and the mass of a given reactant or product using moles. Includes questions, answers and examples. This is made for a KS4 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! :)

PowerPoint that covers the following learning objectives: Define relative atomic mass, Ar. Use the periodic table to find the relative atomic mass of all elements. Calculate the relative formula mass for familiar compounds when the formula is supplied and is with or without brackets. Calculate the percentage mass of an element in a compound. Includes 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 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.

PowerPoint that covers the following learning objectives: Explain why breathing rate increases during exercise. Plan and carry out an investigation to measure the effect of exercise on breathing rates. This is made for a KS3 level science class. Includes: a mind-map, questions, answers, tables, variables, prediction, method, help with the bar graph, conclusion and evaluation.

PowerPoint that covers the following learning objectives: Investigate how light travels through a lens. Describe the difference between a convex lens and a concave lens. Identify the focal point in a light ray diagram of a convex lens. This is made for a KS3 science class. Includes questions, answers, diagrams and link to a virtual simulation.

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.

Includes questions, answers, a practical opportunity, diagrams and explanations. This is made for a GCSE biology class.

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! :)