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The Deepwater Horizon Oil Spill 1 of 5 © Boardworks Ltd 2011 Links to the 2011 specifications AQA 3.2.4.1 – Crude oil Edexcel Topic 5.2 – Describe crude oil as a complex mixture of hydrocarbons OCR Gateway C1a – Making crude oil useful OCR 21st C2 – Material Choices Century Science How Science Works The content in this presentation can help illustrate how scientists: • evaluate the use of contemporary scientific and technological developments and their benefits, drawbacks and risks • consider how and why decisions about science and technology are made, including those that raise ethical issues, and about the social, economic and environmental effects of such decisions. 2 of 5 © Boardworks Ltd 2011 What is crude oil? Crude oil is a fossil fuel that comes directly from the Earth’s crust. It is a complex mixture of hundreds of compounds. The compounds in a mixture are not chemically combined together, meaning they can be separated by methods such as fractional distillation. Crude oil is used to make fuels for transport, heating and generating electricity. It is also used to make plastics and hundreds of petrochemicals. Oil rigs or drilling platforms are used to drill through the sea bed to obtain crude oil from sedimentary rocks. It is then pumped to an oil tanker terminal or an oil refinery on land. 3 of 5 © Boardworks Ltd 2011 Problems with crude oil 4 of 5 © Boardworks Ltd 2011 Deepwater Horizon 5 of 5 © Boardworks Ltd 2011