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Use the navigation menu below to browse our free intermediate chemistry revision topics. These topics are aimed at 14 - 16 year old high school or college students, but may be of interest to readers of any age. This work has been written to be freely available over the Internet, so it is a general purpose resource which can be used in any country and with any exam board that covers these subjects.

Written For Young People and New Learners

Our content is written to be accessible to young people, to be concise and to avoid repetition. The information given is intended to create an outline of the key facts and ideas for each topic, to establish a foundation that can be built upon by the student where time permits.

An International Audience

Our free intermediate science revision topics have been written for English speaking students and teachers in the UK, USA, Canada, Australia, South Africa, Scotland, Ireland, Nigeria, New Zealand, Jamaica and the rest of the world.

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Dmitri Mendeleev

Dmitri Mendeleev

Russian scientist Dmitri Mendeleev formulated the Periodic table of chemical elements in 1869.