 Rocks are a mixture of crystals of one or more minerals.  Rocks help built structures examples: pyramids › They were used as carving tools

RRock cycle is the rock types change into another rock type. 11. compaction and cementation 22.metamorphism 33. melting 44. cooling 55. solidification 66. weathering 77. erosion 88. deposition

 Rock that forms when sediments are compacted and cemented together.  Weathering and erosion

 Form from heat and pressure

 Forms from cooling of magma  Melting and cooling

 Composition is what the minerals in the rocks are made of  Texture is determined by sizes, shapes, and positions.

 Intrusive- cools beneath the surface  Extrusive- forms on the surface

SStrata is layers that form from deposition of sediment CClastic forms when rock or mineral fragments stick together SStratification layering of sedimentary rock

 Foliated is when minerals are aligned  Non-foliated is when metamorphic rocks do not appear to have any regular pattern