Rocks Test Review Packet + 3 on the Test Name______________________________________________________Date________________Period______ Igneous Rocks 1. Define the following 4 terms: Lava: _____________________________________________________________________________________ Magma:___________________________________________________________________________________ Extrusive Igneous Rock: ______________________________________________________________________ Intrusive Igneous Rock: ______________________________________________________________________ Contrast the mineral sizes that are found in extrusive and intrusive igneous rocks: 2. List six different igneous rocks (hint; use your mini-lab) ________________________ ________________________ ________________________ ________________________ ________________________ ________________________ 3. Explain how you can tell by looking at a rock whether it is extrusive or intrusive: 4. Extrusive rocks sometimes have lots of holes – what does that mean? Sedimentary Rocks 5. Define the following terms: Sediments: ________________________________________________________________________________ Weathering: _______________________________________________________________________________ Chemical Weathering: _______________________________________________________________________ Erosion: ___________________________________________________________________________________ Causes (agents) of erosion: ___________________________________________________________________ Deposition: ________________________________________________________________________________ Lithification: _______________________________________________________________________________ Bedding: __________________________________________________________________________________ 6. Explain what the following grain sizes look AND feel like: Grain Size Fine Medium Coarse Look like: Feel like: 7. EXPLAIN how chemical sedimentary rocks are formed and give 2 examples (hint; use mini-lab): __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ 8. EXPLAIN how biochemical sedimentary rocks are formed and give 2 examples (hint; use mini-lab): __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ Use the diagram below: 9. Where would sandstone be found – Why? 10. Where would Fossil Limestone be found – Why? 11. Where would Conglomerate be found – Why? Dry Land River Beach Shallow Water Deep Water Metamorphic Rocks 12. What caused the banding in this rock? 13. Where on Earth do metamorphic rocks form? a. ________________________________ b. ________________________________ 14. Sketch examples of foliated and non-foliated metamorphic rocks: Foliated Non-foliated Rock Cycle 15. How can igneous and metamorphic rocks become sedimentary rock? ____________________________________________________________________________________ ____________________________________________________________________________________ 16. Explain how metamorphic rock can form magma: ___________________________________________ ____________________________________________________________________________________ Circle T or F for 17 - 26 17. Compaction and cementation of sediments are key processes involved in the formation of sedimentary rocks. T F 18. Molten rock is only found close to the surface. T F 19. Sand once existed as rock. T F 20. Igneous rocks are only found within the earth. T F 21. The process of rain wearing down rocks is an example of weathering. T F 22. Moving water is a force in transporting sediment. T F 23. Magma is the result of rocks being heated into liquid rock. T F 24. Erosion is responsible for transporting sediment. T F 25. Molten rock found on the surface of the earth is called coral. T F 26. The rock cycle only flows in one direction. T F Use the Word Bank to complete the following questions 27. _________ are made of one or more minerals. 28. The three main groups of rocks are sedimentary, _____________, and igneous rocks. 29. Sedimentary rocks are commonly made of __________ that are compacted and cemented together. 30. ____________ involves the breaking down of rocks on the earth’s surface. 31. ____________ rock solidifies to form igneous rocks. 32. ____________ involves the transporting of sediment from one place to another. 33. The rock ___________ illustrates how rocks change from one type of rock to another. 34. The particles resulting from weathering of rocks may lead to the formation of _______________ rock. 35. Molten rock inside the earth is called ____________. 36. Heat and __________ are key factors in the formation of metamorphic rocks. Word Bank: Metamorphic Cycle Molten Erosion Sedimentary Igneous Weathering Pressure Sediments Rocks Magma 37. Which two samples could be BRECCIA? 38. Which two samples could be CONGLOMERATE? 39. What observational information did you use to make your decision?