THIS IS With Host... Your 100 200 300 400 500 Relative Dating Absolute Dating Radiometric Dating Fossils Vocabulary 1 Vocabulary 2

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  • 100100100100100100200200200200200200300300300300300300400400400400400400500500500500500500Relative DatingAbsolute DatingRadiometric DatingFossilsVocabulary 1Vocabulary 2

  • He was a farmer and physician who came up with uniformitarianism. A 100

  • Who was James Hutton?A 100

  • sHutton observed geological ______ on his ____ that prompted him to formulate the principle of uniformitarianism.A 200

  • What are geological changes on his farm?A 200

  • Using the Law of Superposition gives a ______ age.A 300

  • What is relative?A 300

  • Before the idea of uniformitarianism, people believed the earth was ______ years old. A 400

  • What is 6,000?A 400

  • Relative age indicates only that one rock formation is _____ or _______ than another rock formation.A 500

  • What is younger or older?A 500

  • B 100Scientist can study the rates of ______ in a stream to help estimate absolute age.

  • What is erosion?

    B 100

  • Using rates of erosion is not dependable for features like the Grand Canyon becauseB 200

  • What is the rates vary greatly over millions of years?B 200

  • Another way to estimate absolute age is to calculate the rate of sediment deposition. This is not always accurate because B 300

  • What is the rates of deposition can vary such as during a flood ?B 300

  • Varve count is similar to counting .B 400

  • What are growth rings in a trees trunk?(tree rings)B 400

  • B 500

    Sedimentary deposits in glacial lakes that are form varves consisting of _____ colored and ______ colored layers.

  • What are light and dark colored layers?B 500

  • Rocks generally contain small amounts of radioactive material that act as natural ______.C 100

  • What are clocks?C 100

  • Scientist use the natural breakdown of isotopes to accurately measure ______ age in rocks.

    C 200

  • What is absolute age?C 200

  • Scientist compare the amount of ____ and _____ isotopes to determine the absolute age of the rock.C 300

  • What are parent and daughter?C 300


  • It would take ____ half-lives for of the parent isotope to remain. C 400

  • What is two?C 400

  • To date dead organic materials, scientist can use _____ dating which uses the rate of decay of ______ 14 in the materials. (same word for both)C 500

  • What is carbon?C 500

  • Fossils can be used to help determine _______ and _______ age

    D 100

  • What are relative and absolute?D 100

  • Fossils can provide information about _______ changes that occurred in Earths history.D 200

  • What are geological or climate changes?D 200

  • Only organisms that are ______ quickly or protected from ____ can become fossils. D 300

  • What are buried quickly and protected from decay?D 300

  • Generally, these parts of organisms form fossils(name 3 of 4)D 400

  • What are wood, bones, teeth, and shells?D 400

  • Name 3 of the 5 ways a fossil can formD 500

  • What are mummification, amber, tar seeps, freezing, and petrification? D 500

  • The principle that states the geological processes of the present are the same geological processes of the past.E 100

  • What is uniformitarianism ?E 100

  • The age of an object in relation to the ages of other objectsE 200

  • What is relative age?E 200

  • The law that states that a sedimentary rock layer is older than the layer above it and younger than those below it.E 300

  • What is the law of superposition?E 300

  • Layers of rock are calledE 400

  • What is strata?E 400

  • E 500A banded layer of sand and silt that is deposited annually in a lake that can be used to determine absolute age

  • What is varve?E 500

  • The remains of animals or plants that lived in a previous geologic time are calledF 100

  • What are fossils?F 100

  • The scientific study of fossilsF 200

  • What is paleontology?F 200

  • A fossilized mark that formed in sedimentary rock by the movement of an animal on or within soft sedimentF 300

  • What is trace fossil?F 300

  • A fossil that is used to establish the age of rock layers because it is distinct, abundant, and widespread and existed for only a short span of geologic timeF 400

  • What is index fossil?F 400

  • Fossilized dung or waste materials from ancient animals are calledF 500

  • What are coprolites?F 500

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  • The 3 of 4 characteristics that define an index fossilClick on screen to continue

  • What are occur in wide area, clearly identified from other fossils, existed in short time span, occurred in large numbers?Click on screen to continue

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