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ch3 rocks
prentice hall earth science
Question | Answer |
---|---|
what is a rock | any solid mass of mineral or mineral like matter that occurs naturally as part of the planet |
what are the three major types of rocks | igneous sedimentary and metamorphic |
how are they different | they just are |
what is the rock cycle | the cycle of rocks |
how are intrusive or extrusive igneous rocks different | intrusive rocks are formed when magma hardens extrusive are formed when lava hardens |
course grained | slow cooling |
fine grained | rapid cooling |
glassy texture | texture that is glassy |
clastic sedimentary rocks | rocks that are made up of a lot of clay |
chemical sedimentary rocks | formed when dissolved minerals precipitate |