The top button navigation bar is repeated on every revision notes page. The Google search box below is dedicated to my site - very useful. This is a big site of >1600 science pages, so you need to explore it patiently and get to know what is useful and bookmark appropriately.



Save a short version of my homepage to laptop, desktop pc, any high-end mobile phone device, tablet etc.

Alphabetical topic and chemical index

KS3 Science Quizzes (~US grade 6-8)

GCSE/IGCSE/O level Chemistry Notes (~US grade 9-10)

GCSE/IGCSE/O level Chemistry Quizzes (~US grade 9-10)

AQA, Edexcel, OCR (Gateway & 21st C) 9-1 GCSE Science Revision Summaries

GCSE 9-1 Chemistry Topic Quizzes to match above

Other GCSE/IGCSE/O Level Chemistry syllabus-specification links

A Level Chemistry Notes (IB, ~US grade 11-12)

A Level Chemistry Quizzes (IB, ~US grade 11-12)

A Level Chemistry syllabus-specification links

GCSE Biology Notes (under long term development)

GCSE Physics Notes (under long term development)

Private Tuition

Doc Brown's Travel Pictures

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Above are links to the main sections of Doc Brown's Chemistry's website, these in turn link to other sub-indexes from which I hope you will bookmark useful and relevant links for your science course. At the top and bottom of all revision notes pages of Doc Brown's Chemistry are more detailed sets of navigation bar buttons to which you should make yourself familiar. The Google search engine is dedicated to Doc Brown's Chemistry's website putting in 'anything of interest' and you can put in multiple words to get the best page match from Doc Brown's website.

"Doc Brown's Chemistry" is a website designed for UK science students studying GCSE Biology, GCSE/IGCSE Chemistry, GCSE Physics and Advanced Level Chemistry. My website covers the current science syllabus specifications from AQA, Edexcel and OCR examination boards. This science revision e-learning  website includes notes & quizzes for chemistry, but includes some biology and physics too AND lots of 'unofficial' revision summaries for ALL the current GCSE Sciences (links below). The new GCSE specifications starting in September 2016 will be eventually covered completely by Doc Brown's Chemistry plus biology and physics revision notes and specification summaries.

CV and 1993 still with beardCV and 2006 still click click!!I hope these web pages of 'Doc Brown's Chemistry'  help your studies! and a warm welcome to the HOMEPAGE of doc b's "Chemistry Online" revision website. This was my millennium 'teaching & learning' project and Doc Brown (teacher) has been online since 2000! Its a big SCIENCE WEBSITE to get to know from a retired CHEMISTRY teacher (and some physics and general science for teaching and learning purposes), SO, use the appropriate INDEXES and Google custom 'Doc Brown's Site' SEARCH too! 'Doc Brown's Chemistry' (all material Dr Phil Brown 2000-2018) has lots of  science revision notes & quizzes, mainly an e-learning website for chemistry, but includes some biology and physics too AND lots of 'unofficial' revision summaries for ALL the current English GCSE Science courses

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New & re-edited webpages: 'Doc Brown's Chemistry' & 'docspics': June 27th FORCES 6. Pressure in liquid fluids and hydraulic systems  FORCES 7. Pressure and upthrust in liquids, why do objects float or sink?, atmospheric pressure variation  June 30th 1. Speed and velocity - the relationship between distance and time, distance-time graphs  July 8th 15a. Narrow boat canal trip from Stanley Ferry to Savile Town Wharf Marina via the Dewsbury Arm and Horbury Bridge 15b. Narrow boat canal trip from Dewsbury to Brighouse on the Calder & Hebble Navigation via Battyeford, Kirklees and Shepley 15c. Narrow boat canal trip from Brighouse to Sowerby Bridge via Salterhebble 15d Narrow boat trip from Sowerby Bridge to Hebden Bridge on the Rochdale Canal 15e Narrow boat trip from Hebden Bridge to Todmorden, Gauxholme Viaducts and SUMMIT on the Rochdale Canal July 9th 3. Acceleration, friction, drag effects and terminal velocity experiments  July 10th steam locomotive 65894  steam locomotive 92134  July 11th BR 65984 Ex BR/GER/LNER Class J27 0-6-0 freight locomotive BR 92134 Standard Class 9F 2-10-0 heavy freight locomotive July 15th BR 7714 Ex GWR Locomotive Collett 5700 0-6-PT pannier tank engine  July 20th 69. YHA The Sill at Hadrian's Wall, Northumberland 41f. Hatton Gallery - Newcastle University buildings  RHS Carlow Carr  Brampton in Cumbria  July ?

GCSE grade 9-1 & IGCSE CHEMISTRY Doc Brown's Travel Pictures & Notes
GCSE 9-1 Physics Revision Notes GCSE 9-1 Biology Revision Notes
All website content Dr Phil Brown 2000 onwards. All copyrights reserved on revision notes, images, quizzes, worksheets etc. Copying of website material is NOT permitted. Exam revision summaries and references to science course specifications are unofficial. Email doc b:

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 Doc Brown's Chemistry 


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