Please, do NOT write on this test.
Turner, 2013-14
Minerals & Rocks Assessment (ES.4 and ES.5)
Directions: Please answer all questions on your Answer Sheet. Raise your hand when you are done.
1. Molten material found inside of the Earth is called: A. lava. C. plasma. B. magma. D. rock fluid. 2. In an area where a river has cut deep into Earth, there are several layers of very different rock exposed. The oldest layer is most likely to be the layer that is: A. below the other layers. C. the most rich in fossils. B. the thickest layer. D. igneous intrusive rock. 3. Relative cooling rates of igneous rocks can be estimate by comparing rocks’: A. crystal sizes. C. density. B. composition. D. chemical reactivity. 4. Which of the following is most likely to produce a detrital/clastic sedimentary rock? A. magma fractured on the ocean floor B. calcite crystallized from seawater C. gravel deposited in a silt bed D. limestone dissolved in cave formation 5. Which sample in the diagram below best shows the physical properties normally associated with metamorphism? A. Sample A C. Sample C B. Sample B D. Sample D 6. Which characteristic provides the best evidence that the rock obsidian formed in an extrusive igneous environment? A. Layers of rounded fragments B. Distorted bands of large mineral crystals C. No crystals, glassy texture D. Mineral cement between grains 7. Which kind of sedimentary rock may be composed of marine skeletons or sea shell fragments cemented together? A. detrital/clastic C. chemical B. organic/biological D. intrusive 8. Which sedimentary rock is most likely to be changed to slate during metamorphism? A. sandstone C. limestone B. conglomerate D. shale Please, do NOT write on this test.
Turner, 2013-14
Base your answers to questions #9 and #10 on the pictures of the four (4) rocks show below. Magnified views of rocks are shown in the circles. 9. What do all four (4) rock samples have in common? A. They show cleavage. B. They contain minerals. C. They are organically formed. D. They formed on Earth’s surface. 10. Which rock is metamorphic and shows evidence of foliation? A. Rock 1 (Gneiss) B. Rock 2 C. Rock 3 D. Rock 4 11. The diagrams to the right represent four (4) rock samples. Which rock was formed by rapid cooling in a volcanic lava flow? (The diagrams are not to scale). A. Rock 1 B. Rock 2 C. Rock 3 (Obsidian) D. Rock 4 12. Which phrase best describes the rock coal? A. basaltic B. chemical 13. Metamorphic rocks can form from A. igneous rocks. B. sedimentary rocks. C. organic D. glassy C. other metamorphic rocks. D. all of the above. Please, do NOT write on this test.
Turner, 2013-14
14. The diagram below shows a rock with deformed structure and intergrown crystals. The rock was probably formed by: A. sediments that were deposited on the ocean floor. B. volcanic lava that cooled on the Earth’s surface. C. heat and pressure that changed a preexisting rock. D. a meteor impact on Earth’s surface. 15. All of the following are sediments EXCEPT: A. sand D. cement (a mixture of sediment and B. clay water!) C. silt 16. Which of the following types of rock is produced by magma that cools deep below the Earth’s crust? A. extrusive igneous C. foliated metamorphic B. intrusive igneous D. chemical sedimentary 17. The parent material for all rocks is A. silica. C. granite. B. quartz. D. magma. 18. The main difference between sedimentary, metamorphic, and igneous rocks are the: A. ways they are located. B. conditions under which they are formed. C. minerals they are composed of. D. location where they are found. 19. Which process is necessary for the formation of igneous rocks? A. erosion C. solidification (cooling) B. deposition D. metamorphism 20. Complete the Rock Cycle diagram on your answer sheet with the 3 main rock type names. Extra Credit: 21. Pumice is an igneous rock that floats in water. We can infer that: A. The density of pumice is less than the density of water. B. The density of pumice is greater than the density of water. C. Pumice weighs more than water. D. Pumice weighs less than water.