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Name ______________________________ Class ___________________ Date __________________ Skills Worksheet Directed Reading B; Chapter 4.1 Section: The Rock Cycle Circle the letter of the best answer for each question. 1. What is a solid mixture of one or more minerals and organic matter called? a. sediment b. sand c. rock d. magma 2. What is the process called that forms new rock from old rock? a. the erosion cycle b. the rock cycle c. the water cycle d. the carbon cycle THE VALUE OF ROCK 3. Early humans made arrowheads from which rock? a. chert b. marble c. sandstone d. limestone PROCESSES THAT SHAPE THE EARTH Weathering, Erosion, and Deposition 4. What is the process in which water, wind, ice, and heat break down rock called? a. cementation b. metamorphism c. solidification d. weathering Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor. Holt Science and Technology 11 Rocks: Mineral Mixtures Name ______________________________ Class ___________________ Date __________________ Directed Reading B continued Circle the letter of the best answer for each question. 5. What moves sediment from one place to another? a. deposition b. weathering c. erosion d. uplift 6. What is it called when sediment is laid down in a body of water? a. deposition b. uplift c. weathering d. erosion Heat and Pressure 7. What rock forms when sediment is squeezed by the weight of the rock above it? a. igneous rock b. sedimentary rock c. metasedimentary rock d. metamorphic rock How the Cycle Continues 8. Besides erosion, what else causes rock to be exposed at the Earth’s surface? a. uplift b. compaction c. deposition d. cementation Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor. Holt Science and Technology 12 Rocks: Mineral Mixtures Name ______________________________ Class ___________________ Date __________________ Directed Reading B continued ILLUSTRATING THE ROCK CYCLE Read the words in the box. Read the sentences. Fill in each blank with the word or phrase that best completes the sentence. metamorphic sedimentary magma igneous 9. Grains of sediment on the ocean floor are compacted and cemented to form ______________________ rock. 10. Intense heat and pressure change the sedimentary rock into ______________________ rock. 11. When magma cools and solidifies, it becomes ______________________ rock. 12. The hot liquid that forms when rock partially or completely melts is called ______________________ ROUND AND ROUND IT GOES Circle the letter of the best answer for each question. 13. In the rock cycle, which factor determines which forces will change a rock? a. location b. heat c. pressure d. time 14. What forces most commonly work on rocks at Earth’s surface? a. heat and pressure b. weather and erosion c. compaction and cementation d. melting and cooling Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor. Holt Science and Technology 13 Rocks: Mineral Mixtures Name ______________________________ Class ___________________ Date __________________ Directed Reading B continued Circle the letter of the best answer for each question 15. What affects rocks deep inside the Earth? a. heat and pressure b. weathering c. erosion d. deposition ROCK CLASSIFICATION 16. Which of the following is not one of the three main classes of rock? a. igneous rock b. volcanic rock c. sedimentary rock d. metamorphic rock 17. How do scientists classify rocks? a. by color b. by volume c. by mass d. by composition and texture Composition 18. What is meant by the composition of a rock? a. chemical makeup b. grain shape c. grain size d. grain positions Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor. Holt Science and Technology 14 Rocks: Mineral Mixtures Name ______________________________ Class ___________________ Date __________________ Directed Reading B continued Texture Circle the letter of the best answer for each question. 19. Besides the size and position of its grains, what else determines clastic sedimentary rock texture? a. temperature of the grains b. length of the grains c. width of the grains d. shape of the grains 20. What type of grains determine clastic sedimentary rock texture? a. round and square b. fine, medium, and coarse c. small, medium, and large d. heavy and light 21. Which rock’s texture is determined by how fast the magma cooled? a. igneous b. metamorphic c. metasedimentary d. sedimentary 22. Which rock’s texture is determined by the pressure and temperature the rock was exposed to? a. metasedimentary b. metamorphic c. igneous d. sedimentary Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor. Holt Science and Technology 15 Rocks: Mineral Mixtures
