Geology Unit Crossword Puzzle

QUESTIONS LIST: mantle : convection currents are located here, soil : clay, water silt, sand,animals,air, organic matter, weathering : the breaking down of rocks, erosion : carried rocks away, extrusive : _ igneous - forms when lava cools on earths surface, fossils : a preserved remain or traces of living things, intrusive : _ igneous - forms when magma cools in earth, sedimentary : made from sediment pressed together, leaching : two plates slide against each other in opposite direction, tectonic plates : plates of rock that cause volcanoes, crust : thinnest layer of the earth, mantle : thickest layer of the earth, humus : a thick paste or spread from the ground made by organic material, igneous rock : made from cooled lava, chemical: _ weathering - example: when acid rain hits a rock, metamorphic: change of rock by heat and pressure, diamond : hardest substance known to man, parent material : located in horizon c, deposition : depositing rock, convection currents : made of waxy substance