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Definitions: Porosity: Porosity is the percentage of the total volume of rock consisting of voids. Volume of pore space Total volume of rock Permeability: Permeability is the ability for a fluid to pass from one pore space to another. Examples: Clay is a highly porous rock but it has a low permeability as the pore spaces a resistant to fluid movement, limestone however may become very permeable because water enlarges cavities. Igneous rocks are not porous or permeable unless it contains fissures. Aim: To compare how porous and permeable different materials are. Hypothesis: * Materials with bigger pore spaces will have greater porosity. * Porosity is reduced by the presence of small grains between the larger ones. * There will be no difference in the porosity of different materials. * The materials with larger pore spaces will be more permeable than materials with smaller pore spaces. * All materials will have the same permeability Method: Porosity Experiment: This experiment was created...

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