Name: _____________________________________________ Period: __________ Minerals and Rocks Test Review Sheet Our Test is Thursday, December 5th ** Remember tests are 70% of your science grade. Directions: Use what you have learned about minerals and rocks, and the information glued into the back of your lab notebook to help you answer the following questions. This review sheet is for your use to help prepare for the mineral and rocks test. 1. What are rocks made of? ________________________________________ 2. How do scientists identify the different minerals that are found in rocks? _______________________________________________________________ _______________________________________________________________ 3. Give three examples of properties that scientist might look for when they are trying to identify a mineral. a. One property is __________________________________________________________ b. A second property is __________________________________________________________ c. A third property is __________________________________________________________ 4. Does the size of a mineral affect (change) the properties of a mineral? For example, if one diamond is smaller than another diamond, will the hardness of the smaller diamond be different than the hardness of the larger diamond? ______________________________________________________________ 5. Look at these minerals from the Mohs Hardness Scale: Quartz (scratches copper, and scratches glass), Gypsum (scratches copper but does not scratch glass). a. Which one in this list of minerals is the hardest? How do you know? _____________________________________________________________ _____________________________________________________________ b. Which one in this list of minerals is the softest? How do you know? _____________________________________________________________ _____________________________________________________________ 6. What is the rock cycle? _______________________________________________________________ _______________________________________________________________ 7. Explain how an igneous rock is formed. _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ 8. Explain how a sedimentary rock is formed. _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ 9. Explain how a metamorphic rock is formed. _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ 10. What are two identifying characteristics of a metamorphic rock? _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ 11. What are two identifying characteristics of an igneous rock? _______________________________________________________________ _______________________________________________________________ 12. What are two identifying characteristics of a sedimentary rock? _______________________________________________________________ _______________________________________________________________ 13. What is a natural resource? _____________________________________________________________ _______________________________________________________________ 14. A rock is slowly worn down into smaller pieces by wind and rain. What is this process called? ____________________________________________________ 15. You are looking at a cliff that contains layers of sedimentary rocks. There are four layers that you can see. If we number the layers 1, 2, 3, and 4 with layer 1 being the top layer and layer 4 being the bottom layer, which layer is the oldest? The oldest rock is layer number ________________ I know this is the oldest layer because _______________________________________________________________ _______________________________________________________________ 16. Why are sedimentary rocks the only ones that contain fossils? _______________________________________________________________ _______________________________________________________________