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13 Crude oil

Crude oil is a naturally occurring fossil fuel, formed over millions of years from the ancient remains of marine organisms. These organisms, primarily plankton and algae, sett...

Open eLMS Created 23/03/2026

14 Fractional distillation

Fractional distillation is a vital industrial process used to separate crude oil into simpler, more useful mixtures. Crude oil itself is a complex mixture of thousands of diff...

Open eLMS Created 23/03/2026

15 Alkanes

Alkanes are a homologous series of hydrocarbons, meaning they are organic compounds composed solely of carbon and hydrogen atoms. These molecules are characterized by having o...

Open eLMS Created 23/03/2026

16 Incomplete combustion

Welcome to this learning session on 16 Incomplete Combustion In this course we shall address:Combustion: Complete vs. IncompleteIncomplete Combustion: Products and HazardsKey...

Open eLMS Created 23/03/2026

17 Acid rain

Rainwater is naturally slightly acidic due to the dissolution of carbon dioxide from the atmosphere, forming carbonic acid, which typically gives it a pH of around 5.6. Acid r...

Open eLMS Created 23/03/2026

18 Choosing fuels

Most modern vehicles rely on petrol or diesel oil for propulsion, which have been the dominant fuels for over a century. However, hydrogen is emerging as a promising alternati...

Open eLMS Created 23/03/2026

19 Cracking

Cracking is a crucial process in oil refineries, primarily carried out after fractional distillation. Its main purpose is to convert long-chain hydrocarbon molecules, which ar...

Open eLMS Created 23/03/2026

20 Extended response - Fuels

Crude oil is a naturally occurring, unrefined petroleum product composed of hydrocarbon deposits and other organic materials. It is a complex mixture of various hydrocarbons,...

Open eLMS Created 23/03/2026

21 The early atmosphere

Welcome to this learning session on 21 The early atmosphere In this course we shall address:Volcanic beginnings and modern balanceOceans form, dissolving atmospheric CO2Marine...

Open eLMS Created 23/03/2026

22 Greenhouse effect

Welcome to this learning session on Greenhouse effect In this course we shall address:Understanding the Greenhouse EffectGreenhouse Gases: Sources and Heat TrappingGlobal Warm...

Open eLMS Created 23/03/2026

23 Extended response - Atmospheric science

Atmospheric science is the study of Earth's atmosphere, its processes, and how it interacts with other systems. Understanding these interactions is crucial for evaluating comp...

Open eLMS Created 23/03/2026

3-D shapes

Three-dimensional (3-D) shapes, also known as solids, are objects that occupy space and have length, width, and height. Unlike two-dimensional shapes which are flat, 3-D shape...

Open eLMS Created 25/11/2025

Our courses give general knowledge. Where stated, a course is CPD certified: CPD certification records learning time and is not a qualification or licence. No course replaces practical training, supervision or assessment of competence. Never carry out hazardous work (for example at height, with lifting equipment, electricity, gas or machinery) on the strength of a course alone. Terms