crust - the outer layer of the Earth, decay - to rot or decompose, fossil - the preserved remains of a dead organism, geologist - a person who studies rocks, igneous rock - rock formed from cooled magma, impermeable - doesn't allow liquid to pass through, metamorphic rock - rock formed from changes of heat or pressure, permeable - allows liquid to pass through, sedimentary rock - rock formed by layers of sediment, soil - made up of pieces of rock, minerals, decaying plant material, microbes and water,

Leaderboard

Visual style

Options

Switch template

Continue editing: ?