rocks
Terms
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- basalt
- a dark, dence igneous rock with fine texture
- sediment
- small solid pieces of aterial that come fromrock to organisms; earth materials deposited by ersion
- metamprphic rock
- a type of rock that forms from an existing rock that is changed by heat pressure pr chemical reactions
- intrusive rock
- ignous rock that forms when magma hardens beneath earths surface
- cementation
- the proces by which dissolved minerals crystalize and glue particals of seiment
- granite
- A usually light colored ignous rock that is found underground
- rock-forming minerals
- the common minerals that make up most of the rocks of earths crust
- sedimentary rock
- A type of rock htat foms when particals from other rocks or the remains of plants and animals are pressed and cemented togeather
- deposition
- process in which sediment is laid down in new locations
- erosion
- the process by which water, ice, wind or gravity moves weatherd rock or soil
- silica
- a material found in magma that formedfrom the elthe elements oxygen and ssilicon
- ignouse rock
- a type of rock that forms from the cooling of molten rock
- texture
- the ook and feel of a rock's surface, determined by the size, shape and pattern of a rocks grains
- extrusive rock
- igneous rock thatforms from lava on earths surface
- compaction
- the process by which sediments are pressed together by their own weight
- grains
- the particals of minerals or other rocks that give rock its texture