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The Chemical Earth Notes/Assignment


10 Pages Essays / Projects Year: Pre-2018

Covers the following dot points in detail: 8.2 Chemical Earth: 1.4, 1.5 1.4 identify and describe procedures that can be used to separate naturally occurring mixtures of: - solids of different sizes - solids and liquids - dissolved solids in liquids - liquids - gases 1.5 assess separation techniques for their suitability in separating examples of earth materials, identifying the differences in properties which enable these separations 8.3 Metals 1.3, 1.4; 5.1, 5.3, 5.5, 5.7, 5.8 1.3 explain why energy input is necessary to extract a metal from its ore 1.4 identify why there are more metals available for people to use now than there were 200 years ago 5.1 define the terms mineral and ore with reference to economic and non-economic deposits of natural resources 5.3 explain why ores are non-renewable resources 5.5 recount the steps taken to recycle aluminium 5.7 justify the increased recycling of metals in our society and across the world 5.8 analyse information to compare the cost and energy expenditure involved in the extraction of aluminium from its ore and the recycling of aluminium

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