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Try this quiz based on GCSE Chemistry past papers. Choose the topic you would like to revise and answer the questions.

Edexcel Foundation and higher GCSE interactive tests based on past papers to get you ready for your chemistry exams. Topics include the periodic table, equations and more.

Use our interactive quiz to understand how the Edexcel foundation and higher chemistry GCSE exams work. Revise topics such as the periodic table and equations.

This interactive quiz is for GCSE Chemistry (single science) students studying pure substances and mixtures. Test your knowledge of filtration, crystallisation and distillation.

This interactive quiz is for GCSE Chemistry (single science) students studying atomic structure. Test your knowledge of atomic models, atomic number and calculating atomic mass.

his interactive quiz is for GCSE Chemistry (single science) students studying the periodic table. Test your knowledge of where the different groups are in the periodic table.

This interactive quiz is for GCSE Chemistry (single science) students studying the periodic table. Test you knowledge of chemical and physical properties and chemical reactions.

This interactive quiz is for GCSE Chemistry (single science) students studying the reactions of metals. Test your knowledge of the reactivity series and the extraction of metals.

This interactive quiz is for GCSE Chemistry (single science) students studying acids, alkalis and salts. Test your knowledge on neutralisation, reactions with acids and solutions.

This interactive quiz is for GCSE Chemistry (single science) students studying acids, alkalis and salts. Test your knowledge of indicators, reactions and chemical equations.

This interactive quiz is for GCSE Chemistry (single science) students studying Electrolysis. Electrolysis involves using electricity to break down electrolytes to form elements.

This interactive quiz is for GCSE Chemistry (single science) students studying the three states of matter. Test your knowledge on the properties of substances and changes of state.

This interactive quiz is suitable for GCSE Chemistry (single science) students studying ionic compounds. An ionic compound is made up of charged particles, called ions.

This interactive quiz is suitable for GCSE Chemistry (single science) students studying small molecules. Test you knowledge of covalent bonds, electrons and atoms.

This interactive quiz is for GCSE Chemistry (single science) students studying giant covalent molecules.Giant covalent substances have many atoms joined together by covalent bonds.

This interactive quiz is for GCSE Chemistry (single science) students studying nanoscience. Answer questions about nanoparticles and the properties of Nanoparticulate materials.

This interactive quiz is for GCSE Chemistry (single science) students studying calculations in chemistry. Test your knowledge of calculating relative formula mass.

Learn about atomic structure and the periodic table for your GCSE chemistry exam, with Dr Sunayana Bhargava and Tulela Pea.

Learn about bonding, structure and properties of matter for your GCSE chemistry exam, with Dr Sunayana Bhargava and Tulela Pea.

Dr Sunayana Bhargava and Tulela Pea take you through what you need to know about chemical changes for your GCSE chemistry exam.

Learn all about science exam techniques for your GCSE science exams with Dr Alex Lathbridge.

Chemists use symbols and formulae to represent elements, ions and compounds. Word equations and balanced chemical equations model the changes that happen in chemical reactions.

Hazard symbols warn about the dangers of a substance. Risk is the chance that a hazard will cause harm. Risk assessments describe how to reduce the risk of harm when carrying out an experiment.

Atoms consist of a nucleus containing protons and neutrons, surrounded by electrons in shells. The numbers of particles in an atom can be calculated from its atomic number and mass number.

Mendeleev made an early periodic table. In the modern periodic table, elements are in order of atomic number in periods and groups. Electronic configurations model how electrons are arranged in atoms.

When a metal element reacts with a non-metal element an ionic compound is formed. They have a giant lattice structure with strong ionic bonds. A lot of energy is needed to overcome these bonds.

A covalent bond is a shared pair of electrons. Covalent bonding results in the formation of molecules. Simple molecular substances have low melting and boiling points, and do not conduct electricity.

Giant covalent substances contain atoms joined together by bonds. Diamond, graphite and graphene are forms of carbon and have different properties because they have different structures.

Metals and non-metals have different properties. Properties of metals can be explained in terms of metallic structure and bonding. Different chemical models have different features and limitations.

An empirical formula of a substance is found using the masses and relative atomic masses of the elements it contains. The law of conservation of mass applies to closed and non-enclosed systems.

The mole is the unit for the amount of substance. The number of particles in a substance can be found using the Avogadro constant. The mass of product depends upon the mass of limiting reactant.

Understanding how to approach exam questions helps to boost exam performance. Question types will include multiple choice, structured, mathematical and practical questions. Arrangements for exam/non-exam assessments for students taking qualifications during the pandemic may be subject to change. Please check with your teacher.

The three states of matter can be represented by the particle model. This model explains the properties of substances in their different states, as well as changes of state.

There are different ways to separate mixtures, for example by filtration, crystallisation, distillation or chromatography. The method chosen depends upon the type of mixture.

Understanding how to approach exam questions helps to boost exam performance. Question types will include multiple choice, structured, mathematical and practical questions.

Indicators are used to determine if a solution is acidic or alkaline. Acids react with metals, bases and carbonates to produce salts. Neutralisation is the reaction between an acid and a base.

Soluble salts can be made by reacting acids with soluble or insoluble reactants. Titration must be used if the reactants are soluble. Insoluble salts are made by precipitation reactions.

Electrolysis involves using electricity to break down electrolytes to form elements. The products of electrolysis can be predicted for a given electrolyte. Copper can be purified using electrolysis.

Understanding how to approach exam questions helps to boost exam performance. Question types will include multiple choice, structured, mathematical and practical questions.

The reactivity series shows metals in order of reactivity. The reactivity of a metal can be worked out by studying its reactions. Iron and aluminium are extracted from their ores in different ways.

Chemical reactions are reversible and may reach a dynamic equilibrium. The direction of reversible reactions can be altered by changing the reaction conditions. Ammonia is made by the Haber process.

Understanding how to approach exam questions helps to boost exam performance. Question types will include multiple choice, structured, mathematical and practical questions.

Transition metals have high melting points and densities, form coloured compounds and act as catalysts. Rusting can be prevented by keeping oxygen and water away, and by sacrificial protection.

The percentage yield shows how much product is obtained compared to the maximum possible mass. The atom economy of a reaction gives the percentage of atoms in reactants that form a desired product.

Calculations involving the mole can be used to determine unknown concentrations, volumes and masses in reactions. One mole of any gas occupies 24 cubic decimetres at room temperature and pressure.

Fertilisers may contain nitrogen, phosphorus and potassium compounds to promote plant growth. Ammonium nitrate and ammonium sulfate are salts that can be used as fertilisers.

The conditions chosen for an industrial reaction are related to producing an acceptable yield in an acceptable time. Different reaction pathways are often available to produce a given product.

A chemical cell produces a voltage until one of the reactants is used up. In a hydrogen-oxygen fuel cell, hydrogen and oxygen are used to produce a voltage, and water is the only product.

Understanding how to approach exam questions helps to boost exam performance. Question types will include multiple choice, structured, mathematical and practical questions. Arrangements for exam/non-exam assessments for students taking qualifications during the pandemic may be subject to change. Please check with your teacher.

The group 1 elements are all soft, reactive metals with low melting points. They react with water to produce an alkaline metal hydroxide solution and hydrogen. Reactivity increases down the group.

The group 7 elements are all reactive non-metals. They react with metals to form metal halides, and with hydrogen to form acidic hydrogen halides. Reactivity decreases down the group.

The group 0 elements, the noble gases, are all unreactive non-metal gases. They show trends in their physical properties. Their uses depend on their inertness, low density and non-flammability.

Understanding how to approach exam questions helps to boost exam performance. Question types will include multiple choice, structured, mathematical and practical questions. Arrangements for exam/non-exam assessments for students taking qualifications during the pandemic may be subject to change. Please check with your teacher.

The greater the frequency of successful collisions between reactant particles, the greater the reaction rate. Temperature, concentration, pressure and the use of catalysts affect reaction rate.

Exothermic reactions in solution give out energy and the temperature increases, while endothermic reactions take in energy and the temperature decreases. Bonds are broken and made in reactions.

Understanding how to approach exam questions helps to boost exam performance. Question types will include multiple choice, structured, mathematical and practical questions.

Crude oil is a finite resource. Petrol and other fuels are produced from it using fractional distillation and cracking. Combustion products may cause environmental and health problems.

There is evidence that the Earth's early atmosphere contained less oxygen but more carbon dioxide and water vapour than it does today. Increased emissions of greenhouse gases have led to climate change.

Understanding how to approach exam questions helps to boost exam performance. Question types will include multiple choice, structured, mathematical and practical questions.

Flame tests and chemical tests are used to detect and identify ions in samples. Instrumental methods of analysis are faster, and more accurate and more sensitive than simple chemical tests.

The alkenes form a homologous series of unsaturated hydrocarbons. Bromine water is decolourised by alkenes but not by alkanes.

Addition polymers are made from molecules containing C=C bonds. Polymers have different properties and uses but it is difficult to dispose of them. DNA, starch and proteins are biological polymers.

Alcohols contain the –OH functional group. Ethanol is made from sugars by fermentation, and concentrated using fractional distillation. Carboxylic acids contain the –COOH functional group.

Nanoparticles are 1 nm to 100 nm in size. They have very large surface area to volume ratios. The properties of nanoparticulate substances are different from those of the same substance in bulk.

Materials include glass and clay ceramics, polymers, metals and composite materials. They have different physical properties, which make them suitable for different uses.

Understanding how to approach exam questions helps to boost exam performance. Question types will include multiple choice, structured, mathematical and practical questions.

Scientific investigations have several stages - planning, collecting data, analysing data and evaluation. It is important to understand how to carry out each stage of the investigation.