EAS 5 stars

GCSE Chemistry

Pick and choose your relevant exam board, whether you are doing topics from the Additional or Core tier and whether you are studying the Higher or Foundation level within that. This app can be moulded exactly to your needs, providing thousands of illustrated questions to consolidate your knowledge, detailed explanations to further your understanding and performance based graphs and progress reports to boost confidence prior to your GCSE exams.

Key Features:

IMG_3331– Option to choose core or additional of the AQA, Edexcel or OCR 21st Century Science exam boards

– 1000s of original, syllabus specific questions

– Detailed explanations to further understanding

– Hundreds of illustrated diagrams, graphs & experiments

– Repeat difficult questions or select new ones at random

– Watch your knowledge improve using inbuilt progress reports

– Share your results with friends on Twitter & Facebook

– Gain insight into the layout of your exams through direct links to past papers & mark schemes

How do I get it?

Download the app that you want to revise for free or choose our ‘for schools’ version on the AppStore or Google Play

appstore_btn We are part of Apples Volume Purchase Programme, offering a 50% discount for bulk purchases.


googleplay_btnIn January 2015 we were also selected as a launch partner for Google Play for Education UK – Read all about it here


Teachers – Get in touch to find out how you can distribute apps “over the air” to your students at discounted prices

We also offer RB collections

All of your subjects grouped together at more than a 50% discount to individual download prices

For those that want to avoid the hassle of multiple app downloads, we also provide heavily discounted ‘bundles’, including our GCSE Science Suite as well as the whole Revision Buddies Collection

Below is a detailed breakdown of the carefully compiled content that students can pick and choose from:




Fundamental Ideas in Chemistry

Atoms, elements, properties and the Periodic Table; chemical reactions

 Limestone and Building Materials

The use of limestone, environmental, social and economic effects ofusing it in building; calcium carbonate and its decomposition; using limewater to test for carbon dioxide, carbonate reactions with acid

 Metals and their Uses

Metal extraction and their uses; environmental, social and economic impacts of exploiting metal ores; using metals as structural materials; understanding ores; creating alloys to make metals more useful; the transition metals and their uses

 Crude Oil and Fuels

Where crude oil comes from and the useful materials that can be produced; fractional distillation; social, economic and environmental impacts of these fuels; understanding hydrocarbons and the combustion of hydrocarbon fuels; biofuels and their impact

 Other Useful Substances from Crude Oil

The creation of unsaturated hydrocarbons and their economic and environmental impacts; cracking and the production of alkenes; polymers and their uses; ethanol

 Plant Oils and their Uses

Vegetable oils and their uses; emulsions, saturated and non-saturated oils their uses, properties and energy produced

 Changes in the Earth and Atmosphere

The makeup of the earth; Continental drift, earthquakes and volcanoes; theories of the change in the Earth’s atmosphere; the effect of humans on the Earth and our surroundings


The Earth’s Sea and Atmosphere

The Earth’s early atmosphere and what it contained; different sources of information about the development of the atmosphere and its evolution; the formation of the oceans; the reduction of carbon dioxide in the atmosphere; primitive plants, carbon dioxide, photosynthesis and oxygen in the atmosphere; the current composition of the atmosphere; changes in the atmosphere through volcanic activity and human activity

 Materials from the Earth

The formation of igneous rocks; chalk and limestone and sedimentary rock; the formation of sedimentary rocks and its characteristics – fossils and erosion; marble and metamorphic rock and its formation; the Earth’s crust and calcium carbonate; the balance between demand for limestone and the economic, environmental and social effects of quarrying it; the commercial need for quarrying and its uses; thermal decomposition of different metal carbonates; Atoms and chemical reactions; the effect of water on calcium oxide; calcium hydroxide and limewater; precipitation reactions; neutralisers in soil acidity


Hydrochloric acid and its role in digestion; indigestion remedies as neutralisers and their effectiveness; metal oxides, hydroxides and carbonates as neutralisers; hydrochloric acid and chloride salts; nitric acid and nitrate salts; sulfuric acid and sulfate salts; electrolysis; the chemical test for hydrogen, oxygen and chlorine; chlorine as a toxic gas and its hazards; uses of chlorine

 Obtaining and Using Metals

The extraction of metals from their ores according to their reactivity; unreactive metals as uncombined elements; oxidation; reduction and corrosion; advantages of recycling metals; the uses of metals in relation to their properties, including aluminium, copper, gold and steel; the use of models to explain the conversion of pure metals into alloys; changes to the properties of metals through alloys including smart or shape memory alloys


Understanding hydrocarbons; crude oil and fractional distillation; complete combustion; incomplete combustion and its risks; the balance of the atmosphere and how it is affected by human activity; evaluating evidence for climate change; biofuels as possible alternatives to fossil fuels – advantages and disadvantages; understanding non-renewable fossil fuels; alkanes and alkenes; bromine water; cracking; polymerisation


Air Quality

Chemicals in the air, understanding the atmosphere – how it evolved and factors that can affect it; the formation of the oceans; fossil fuels; combustion and reduction; chemical reactions; reactants and pollutants;  improving air quality

Material Choices

Measuring properties of materials; crude oil and its uses; understanding forces and energy between hydrocarbon molecules; monomers and polymers; understanding the structure of materials, their properties and why they are suited to their uses; modifications to polymers that produce changes to properties; nanotechnology

Chemicals in our Lives – Risks and Benefits

The origins of minerals in Britain; understanding the formation of the Earth; geological studies; the development of chemical industries; the importance of salt, its uses, its affect on health and how it is obtained; the use of alkalis and chlorine; manufacturing chemicals and their effects; electrolysis; safety and sustainability; toxic chemicals; PVC and plasticizers; LCA



Ionic Bonding, Ionic lattices and their properties

Structure and bonding, how structure influences the properties and uses of substances; ionic compounds, their structure and properties

 Covalent Bonding, Molecules and Giant Structures

Covalent structures such as Diamond, graphite and silicon dioxide; molecules

 Metallic Bonding, Polymers and Nanoscience

The structure of metals, alloys and shape memory alloys; polymers and their properties, thermosoftening polymers, thermosetting polymers, low and high density polymers; understanding nanoparticles

 Atomic Structure and Analysing Substances

Understanding atomic structure, relative atomic mass, relative formula mass, moles; identifying elements and compounds using instrumental methods; chemical analysis such as chromatography and spectroscopy

 Quantitative Chemistry

Calculating the percentage of an element in a compound; understanding how it is not always possible to obtain the calculated amount of a product; reversible reactions and yields

 Rates of Reaction, Energy Transfer in Reactions

How chemical reactions can be sped up or slowed down; using catalysts; interpreting graphs and the rate of a reaction; the advantages and disadvantages of using catalysts in industrial processes; exothermic and endothermic reactions

 Acids, Bases and Salts

Making soluble salts by reacting acids with metals, insoluble bases and alkalis; understanding state symbols; crystallisation; ammonia salts; Hydrogen ions; neutralisation reactions


The process of electrolysis; electroplating; the manufacture of aluminium using electrolysis and that of hydrogen, chlorine and sodium hydroxide from sodium chloride


Atomic Structure and the Periodic Table

Mendeleev and the Periodic Table; the structure of an atom; understanding the layout of the Periodic Table; understanding isotopes and their relation with atomic masses; calculating the relative atomic mass of an element; electronic configurations; understanding the connection between the number of outer electrons and the position of an element in the Periodic Table

 Ionic Compounds and Analysis

Atoms of different elements and the formation of compounds; ionic bonds, cations and anions; understanding positive and negative charges of atoms; understanding –ide and –ate in the names of compounds; formulae of ionic compounds and structures; properties of ionic substances; solubility of common types of substances in water; the formation of precipitates; uses of insoluble substances; spectroscopy and the discovery of new elements, including rubidium and caesium

Covalent Compounds and Separation Techniques

Understanding covalent bonds and the formation of molecules; the formation of molecular & covalent substances using dot and cross diagrams; properties of simple molecular, covalent compounds; differences between the properties of simple and giant molecular, covalent substances, including diamond and graphite; immiscible and miscible liquids and mixtures; paper chromatography

Groups in the Periodic Table

Classifying elements based on their position in the periodic table; describing the structure and properties of metals; transition metals and their typical properties; classification of elements and compounds and their different physical properties; alkali metals; the halogens; the noble gases, their discovery, uses and properties

 Chemical Reactions

Exothermic and endothermic change or reaction; interpreting graphical representations of energy changes in chemical reactions; variation in the rates of chemical reactions and understanding chemical experiments which demonstrate this; catalysts and catalytic converters in cars

 Quantitative Chemistry

Calculating relative formula mass, the formulae of simple compounds; gauging the percentage composition by mass of a compound from its formula and the relative atomic masses of its constituent elements; using balanced equations to calculate masses of reactants and products; understanding the yield of a reaction; waste products; chemists at work


Chemical Patterns

The history of the development of the Periodic Table;  classifying elements by their position in the Periodic Table; Patterns in Group 1 and 7; using symbols and equations to represent chemical reactions; explaining patterns in the properties of elements; flame tests, spectra, their use for identifying elements and studying atomic structure; classifying elements; linking atomic structure to chemical properties; compounds in Group 1 and 7 elements; ions, linking ion formation to atomic structure; properties of ionic compounds of alkali metals and halogens

 Chemicals of the Natural Environment

Types, structures and properties of chemicals that make up the atmosphere; reactions that happen in the hydrosphere, the structure and properties of chemicals found within it; types of chemicals that make up the Earth’s lithosphere, relating the properties of chemicals to their giant structure using examples found within it; the extraction of useful metals from minerals; using ionic theory to explain electrolysis; discussing issues relating to metal extraction and recycling

 Chemical Synthesis

Chemicals and why we need them; the importance and scale of the chemical industry; acids, alkalis and their reactions; neutralisation explained in terms of ions; planning, carrying out and controlling chemical syntheses; procedures for making pure inorganic products safely; comparing alternative routes to the same product; calculating reacting quantities and yields; measuring purity by simple titration; controlling the rate of change