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TEST 4 (UNIT 4 - Rocks and Minerals)Choose the correct item. 1. The rock cycle is __________________. A. reconstructing of Earth’s crust B. renewing of Earth’s elements C. reworking of Earth’s materials 2. Sedimentary and metamorphic rocks are derive from_________________. A. parent rocks B. igneous parents C. country rock 3. Rocks are __________________. A. mixtures of minerals B. combinations of elements C. composition of grains 4. There are _________ elements that are the basic ingredients for rocks. A. 8 B. 6 C. 10 5. The main element in the continental crust is __________________. A. aluminum B. silicon C. oxygen 6. Crystal structure is controlled by ________________.. A. constancy of atoms B. arrangement of atoms C. composition 7. There are ________________ crystal systems that include all minerals A. 5 B. 6 C. 7 8. Hardness determines __________________. A. how a mineral resists scratching B. how a mineral scratches C. how a mineral can be scratched 9. The hardest mineral according to Mohs’ scale is _______________. A. diamond B. talc C. gypsum 10. Color is not sufficient enough to identify a mineral because__________. A. it shows only a mineral impurities B. one mineral may have several colors C. limited value in identification 11. What property is more diagnostic in minerals___________ A. streak B. color C. impurities 12. Luster can be ______________ A. non-metallic and metallic B. metallic and submetallic C. non-metallic, metallic and submetallic 13. Mica has ____________ cleavage. A. one direction B. three directions C. no direction 14. The following minerals have taste________ A. quartz and mica B. silicate and calcite C. halite and sylvite 15. Ignis is the Latin word for ______________. A. lava B. fire C. ash 16. The formation of sediment rocks takes place A. at the Earth’s surface B. in the Earth’s crust C. at the Earth’s subsurface 17. Metamorphism means__________________ A. accumulation of pre-existing rocks B. melting and cooling of magma C. recrystallization of original minerals 18. The Greek word “meta” is translates as_______________ A. accumulating B. molten C. successive
19. Expansion and contraction result in ____________ A. rock transformation B. rock cracks C. rock erosion 20. Decomposition of rocks is influenced by_________________ A. heat and cold B. pressure and heat C. temperature and heat
21. Minerals are divided into two broad classifications____________ A. minerals and clasts B. ore minerals and rock-forming minerals C. minerals and rocks 22. Quartz is ______________ A. pure silicon B. pure silica C. pure silicate 23. Graphite is ________________. A. a pencil lead B. a mineral C. an element 24. Diamond and graphite are called__________. A. polymorphs B. isomorphs C. amorphous 25. Isomorphs are two minerals which _______________ A. have the same crystal structure and chemical composition B. have different crystal structure but same chemical composition C. have the same crystal structure but different chemical composition
TEST 5 (UNIT 5-Igneous Rocks) Choose the correct item. Read the following texts: Volcanic rocks (pg 107.), Volcanic landforms (pg.108), Volcanic products (pg.109) in the SELF-STUDY BOOKLET 1.How many forms have volcanoes? A. two B. three C. four 2. Which of the following is not a volcano? A. fissure B. central C. basalt 3. What is the typical volcanic shape? A. high steep-shaped mound B. cone-shaped mound C. flat-shaped mound 4. What is a magma chamber? A. a place where lave forms B. a reservoir of gas-rich rocks C. a reservoir of gas-rich molten rock under pressure 5. What word is used to describe how pressurized magma comes out? A. spits out B. spurts out C. balloons outward 6. What is the form of the vent on the Earth’s surface? A. circular B. oval C. cone 7. The top of the volcano is usually A. an inverted crater B. an upside plate C. an circular cone 8. Which of the following is not a lava flow? A. aa B. basic C. pahoehoe 9. Aahas this name because: A. cooled rocks are soft B. cooled rocks are sharp C. cooled rocks are hot
10. Pahoehoe is a word taken from what language? A. American B. Indian C. Hawaiian 11. When a volcano erupts what fuses out of it? A. pyroclastic materials B. gases and junk C. solid materials 12. What is another word for fissure volcano? A. crack B. plateau C. linear 13. Pyroclastic materials include: A. ash, pumice and tuff B. ash, pumice and lava C. ash, tuff and rocks 14. What is ash? A. anything that shoots out of the volcano B. it is little stuff C. it is anything that is 2 mm or less. 15. What is the wrong conception of the term “ash“? A. it is the same as cinder B. it is fine in texture C. it is something soft and fluffy 16. What is a synonym for “pumice”? A. cooled lava B. volcanic glass C. magma with holes 17. How is tuff formed? A. by the consolidation of ash B. by the consolidation of pyroclastic materials C. by the consolidation of ash and pyroclastic materials 18. What is not the formation of igneous rocks? A. cooled lava or magma B. molten rocks C. ash and pyroclastic materials 19. How many major types of volcanic landforms are there? A. five B. six C. four 20. What is another word for “landform”? A. edifice B. structure C. shape 21. The physical structure of a volcano is: A. shape B. edifice C. form
22. What determines the shape of a volcano? A. type and consistency of the magma B. flow rate of the magma C. temperature of the magma 23.What makes lava thick and viscous? A. silicon B. iron and oxygen C. silica 24. If there is less silica, then lava is A. thicker and viscous B. thinner and runnier C. thinner and viscous 25. Ash and cinder cones are: A. lava cones B. explosion cones C. concave cones 26. Which of these have more silica? A. mafic lava B. basaltic lava C. felsic lava 27. What lava forms shield volcano? A. felsic B. magma C. basaltic 28. The Hawaiian Islands are composed of: A. shield volcanoes B. steep-sided volcanoes C. composite cones 29. What is silica? A. compound of oxygen and silicon B. compound of nitrogen and silicon C. compound of silica and iron 30. Composite volcanoes are also called: A. concave volcanoes B. stratovolcanoes C. ash volcanoes 31. The composite volcano has layers of A. ash and lava B. lava and magma C. lava and pyroclastic materials
32. Which of these volcanoes is the most explosive one? A. composite B. fissure C. nuee ardente 33. Which of these volcanoes don’t erupt? A. fissure B. composite C. shield 34. Which of the following isn’t a volcano? A. Vesuvius B. Kilimanjaro C .Rockies 35. If the magma chamber empties, what happens? A. a caldera forms B. a volcano disappears C. the volcano top blasts off 36. What do fissure eruptions form? A. lava volcanoes B. basalt plateaus C. volcanic edifice 37. Why is nuee ardente called disasters? A. because of its speed and erupted materials B. because of its cloud of gas and explosion C. because of its speed and devastating effects 38. Which of these volcanoes are the highest? A. composite B. shield C. cinder 39. What type of rock is formed as a result of a volcanic eruption? A. sedimentary B. igneous C. metamorphic 40. What is not a volcanic feature? A. magma chamber B. vent C. reservoir of gas-molten rock 41. What are “hot-spot” volcanoes? A. active B. dormant C. extinct
42. What is the best-known product of volcanic eruptions? A. lava B. basalt C. silica 43. Basalt is formed by partial melting of A. magnetite B. olivine C. peridotite 44. What word does not correspond to the term igneous? A. effusive B. volcanic C. magmatic 45. What verb describes a volcano? A. emit B. erupt C. come out 46. What is a volcano? A. a vent through which magma and pyroclastic materials erupt. B. pressure which relieves rocks C.explosive eruption ejects solid fragments from the center of the Earth. 47. What is the science that studies the structure and origin of volcanoes? A. seismology B. volcanology C. geology 48. What rock is not igneous? A. rhyolite B. obsidian C. shale 49. What does the term pahoehoe mean? A. sausage-like B. ropy C. lumpy 50. Where is Mt. Helen? A. Washington State B. Oregon C. Califorina
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