Rocks Crossword

building block of matter, each element is made of one
a substance made up of molecules of two or more elements
solid geometric forms produced by a repeating pattern of molecules or atoms
pure substance that can't be broken down into simpler substances by chemical means
when lava erupts/extrudes onto Earth's surface
occurs when pressure causes the mineral grains in a rock realign to form parallel bands
how easily scratched a rock is, based of the Moh scale
forms when magma cools and hardens, forms on or beneath Earth's surface
forms when pressure, temperature, or chemical processes change existing rock
forms when sediment from older rocks or minerals that form from solutions get pressed and cemented together
combination of Si and O, 90% of Earth's crusts
a combination of one or more minerals or organic matter
naturally occurring, inorganic, solid, fixed chemical composition, crystalline structure
the breaking down of rocks
anything that has mass and volume