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Geology Crossword Puzzle by Braeden McLendon

Across
Substances made of non-identical atoms bonded together
Small fragments of rock and pumice thrown out by volcanic eruptions
Study of the Earth's structure and its rocks
Mass of an object compared to the mass of the same volume of water
Formation of crystals from molten rock or solution
Solid, non-living material that forms the Earth's crust
Light passes through but not clearly
Substances made of identical atoms
Forces that stretch or squash the Earth's crust and lead to folds, faults and mountain-building
The degree of shine on the surface of a solid
Natural substances with a definite composition and structure
Down
Describes solids which do not have a crystalline structure
Igneous rock, fine-grained, almost black in color, formed from a fairly runny type of lava
Light passes through clearly
Used to describe an object which will affect a nearby compass needle
Changing from molten to a solid state
Hollow or depression usually at the top of a volcano but sometimes caused by meteor impacts
Made out of crystals
Deep cracks caused by movement of rock during earthquakes
Light does not pass through
Solid substances showing definite geometrical shapes