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Slide 2 The questions will be read automatically, if you want to hear it again click on the speaker. 0 Slide 3 a.fossilized animal tracks b. c.a fossil used to date rock layers d. 1 Slide 4 a.sedimentary rock layers are younger than layers below b.a layer of sedimentary rock over an older, eroded layer of rock c. 2 Slide 5 a.an interruption in the geologic record b.a layer of sediment deposited annually c. d. 3 Slide 6 a.an interruption in the geologic record b.a layer of sediment deposited annually c. d. 4 Slide 7 a.a fossil used to date rock layers b.sedimentary rock layers are younger than layers below c. d. 5 Slide 8 a.a fossil used to date rock layers b. c. a layer of sedimentary rock over an older, eroded layer of rock d. 6 Slide 9 a. b. c.numeric age of an object d.the age of an object in relation to other objects 7 Slide 10 A. B.the age of an object in relation to other objects C. D.the principle that geologic processes that occurred in the past can be explained by current geologic processes 8 Slide 11 a. b. c.numeric age of an object d.the age of an object in relation to other objects 9 Slide 12 A. B.sedimentary rock layers are younger than layers below C.a layer of sedimentary rock over an older, eroded layer of rock D. 10 Slide 13 a. b. c.tree ring. d.glacial lake. 11 Slide 14 a.mummification. b.petrification. c. d. 12 Slide 15 a. b. c.tar that fossilizes insects d.tree sap that fossilizes insects 13 Slide 16 a.fossilized fish b.fossilized dung or waste c. d. 14 Slide 17 a. b. c.law of crosscutting relationships d.law of thermodynamics 15 Slide 18 a. b. c.10,000 to 20,000 years. d.10,000 years. 16 Slide 19 a. b.Radioactive decay happens very quickly. c. d.Radioactive decay happens at a relatively constant rate. 17 Slide 20 a.Parent isotopes are compared to daughter isotopes. b.Isotopes of different compounds are compared. c. d. 18 Slide 21 a.a stone inside a fish b.a stone that was inside a dinosaur c. d. 19 Slide 22 a.carbonized trace fossils. b. c.carbonized residue of plants or fish. d. 20 Slide 23 A. fossils of shells within hardened sediment B. C. D.stone from a dinosaurs digestive system, used to help grind food 21 Slide 24 A.a fossil used to estimate the age of rock layers B.atoms of the same element that have different numbers of neutrons C. D. 22 Slide 25 A.a fossil used to estimate the age of rock layers B. C. D.the scientific study of fossils 23 Slide 26 a. b.the time it takes half the mass of a given amount of a radioactive isotope to decay into its daughter isotopes c. d.atoms of the same element that have different numbers of neutrons 24 Slide 27 a.freezing, petrification, desiccation, amber b.amber, petrification, mummification, freezing c. d. 25 Slide 28 a. b. c.daughter isotope. d.child isotope. 26 Slide 29 a.measure the amount of sediment. b.measure the rate at which the stream erodes its bed. c. d. 27 Slide 30 A. B. C. Petrification D. Casting 28 Slide 31 a.intrusion. b.fault. c. d. 29 Slide 32 a. b. c.coarse summer layer of sediment overlaid with a fine winter layer. d.layer of coarse sediment deposited annually. 30 Slide 33 a.30 cm over 1,000 years. b.30 cm over 100 years. c. d. 31 Slide 34 a. b.metamorphic rock. c.sedimentary rock. d. 32 Slide 35 a. b. c.horizontal layers of old sedimentary rock erode, then get covered by new layers d.undisturbed sedimentary rock remains in horizontal layers 33 Slide 36 a.folded or tilted rock comes to the surface, erodes, and new sediment is deposited b. c.horizontal layers of old sedimentary rock erode, then get covered by new layers d. 34 Slide 37 a.formed by radioactive decay. b.used to date objects less than 70,000 years old. c. d. 35 Slide 38 a.most bacteria cant survive freezing temperatures. b. c.it needs water to decay. d. 36 Slide 39 a. strata. b. data. c. d. 37 Slide 40 a. The rock layers have been tilted or deformed b. The rock layers are not actually sedimentary. c. d. 38 Slide 41 a.Mt. Saint Helens b. c.Niagara Falls d. 39 Slide 42 a. b. c.radioactive d.igneous 40 Slide 43 Turn in your test to the box. Get an essay. When you finish essay, staple it to you answer sheet turn them into the box. 41