Learning Goal: Students will review their understanding of earth s history Success Criteria: Students will solve a variety of problems Agenda: 1.

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1 Learning Goal: Students will review their understanding of earth s history Success Criteria: Students will solve a variety of problems Agenda: 1. Review 2.

2 Earth history review

3 Why are ancient volcanic ash deposits important to geologists? a. They form resistant rock layers containing fossils. b. They are easily dated using carbon-14. c. They serve as good geological time makers. d. They indicate major areas where earthquakes occurred.

4 Why are ancient volcanic ash deposits important to geologists? a. They form resistant rock layers containing fossils. b. They are easily dated using carbon-14. c. They serve as good geological time makers. d. They indicate major areas where earthquakes occurred.

5 For which segment of the Earth's geologic history are fossils rarely found? a. Mesozoic b. Cenozoic c. Paleozoic d. Precambrian

6 For which segment of the Earth's geologic history are fossils rarely found? a. Mesozoic b. Cenozoic c. Paleozoic d. Precambrian

7 Describe what the following indicate about the geological history of an area: 1. Finding marine fossils at high altitudes. 2. The presence of fossil coral

8 1. Finding marine fossils at high altitudes. This indicates uplift because marine fossils would form in the sediments at the bottom of an ocean or large body of water. So the land used to be at the bottom of an ocean or large body of water. 2. The presence of fossil coral This indicates the land used to be a warm shallow sea as this is where corals live.

9 A rock sample containing uranium-238 was crushed into fragments. The half-life of the uranium-238 in each rock fragment is best described as a. the same as that of the original sample b. shorter than that of the original sample c. longer than that of the original sample d. impossible to measure

10 A rock sample containing uranium-238 was crushed into fragments. The half-life of the uranium-238 in each rock fragment is best described as a. the same as that of the original sample b. shorter than that of the original sample c. longer than that of the original sample d. impossible to measure

11 USE YOUR ESRT Which organisms had the shortest time on earth? Place the following in the correct evolutionary order. Fish, soft-bodied organisms, mammals, amphibians

12 USE YOUR ESRT Which organisms had the shortest time on earth? Placoderm Fish Place the following in the correct evolutionary order. Fish, soft-bodied organisms, mammals, amphibians Soft-bodied organisms, fish, amphibians, mammals

13 Which two types of organisms both survived the mass extinction that occurred at the end of the Permian Period? a. b. c. d. trilobites and nautiloids corals and vascular plants placoderm fish and graptolites gastropods and eurypterids

14 Which two types of organisms both survived the mass extinction that occurred at the end of the Permian Period? a. b. c. d. trilobites and nautiloids corals and vascular plants placoderm fish and graptolites gastropods and eurypterids

15 Which radioactive substance would probably be used in dating the recent remains of a plant found in sedimentary deposits? a. carbon-14 b. potassium-40 c. rubidium-87 d. uranium-238

16 Which radioactive substance would probably be used in dating the recent remains of a plant found in sedimentary deposits? a. carbon-14 b. potassium-40 c. rubidium-87 d. uranium-238

17 Place these organisms in order from youngest to oldest

18 Place these organisms in order from youngest to oldest X, Y, W

19 What percent of parent atoms remains after 4 half lives? If the half life of the atom in the diagram is 500 years and a sample contains 75% daughter atoms, how many years old is the sample?

20 What percent of parent atoms remains after 4 half lives? 6.25% If the half life of the atom in the diagram is 500 years and a sample contains 75% daughter atoms, how many years old is the sample? 1000 years old 2 half lives have passed each lasting 500 years

21 Which is older, B or C

22 C, principle of superposition

23 What is marked by letters W and X?

24 Angular unconformity

25 socrative.com room #

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