Across
- 3. rocks that form when magma cools slowly inside a volcano
- 5. the breaking down of and removal of rocks from an area
- 7. this extrusive igneous rock is transparent black and sharp which is the reason it is known as volcanic glass
- 11. rocks are composed of these solid inorganic substances
- 12. main category of rocks that forms when a Parent rock is subjected to heat pressure and time
- 15. rocks that form when lava cools quickly outside of a volcano
- 16. the continuous changing of rock from Igneous to sedimentary to metamorphic
- 17. this type of metamorphic rock has visible bands of minerals formed under pressure like in Gneiss
Down
- 1. an extrusive igneous rock that is light in weight and color and is vesicular meaning it has holes
- 2. main category of rocks that forms when lava or magma cools and solidifies.
- 4. this red clastic sedimentary rock is found in many rock structure in southwestern states such as Arizona
- 6. this main type of rock forms when weathering erosion deposition compaction and cementation occur.
- 8. this type of sedimentary rock forms when water evaporates or deposits minerals like with Rocksalt
- 9. this is an organic sedimentary rock that was formed from the remains of plants and animals
- 10. this metamorphic rock is formed when limestone is subjected to tremendous heat and pressure over time
- 13. rocks are classified into three main categories by the way they are
- 14. an intrusive igneous rock with large crystals used for building