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: 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! :)

Describe the difference between mass and weight. Describe the forces acting on an object falling through a fluid. Explain what terminal velocity is and when it is reached.

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 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.

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 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: 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 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! :)

-Recognise hazard symbols and match the symbol to its meaning. -Describe safety precautions that should be taken when handling substances, based on their hazard symbols.

To define rate of reaction and the units for rate of reaction. To plot and use a graph to calculate the gradient to measure the initial rate of reaction. To calculate the gradient of a tangent to the curve on these graphs as a measure of rate of reaction at a specific time.

• Define what the centre of mass is and identify where it would be in a range of simple shapes. • State that a suspended object will come to rest so that the centre of mass lies below the point of suspension. • Describe an experimental technique to determine the centre of mass of an object with an irregular shape. • Compare the stability of objects to the position of their centre of mass.

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.

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

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! :)

Links to videos for GCSE Chemistry revision.

Practice finding the Ar of an element and calculating the Mr of a molecule or chemical formula 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).