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Relative Dating Absolute Dating Radiometric Dating Fossils Vocabulary 1 Vocabulary 2

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

Who was James Hutton? A 100

s Hutton 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 100 Scientist 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 because… B 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 tree’s 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

DAILY DOUBLE C 400 DAILY DOUBLE Place A Wager

It would take ____ half-lives for ¼ 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 Earth’s 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 form… D 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 objects… E 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 called… E 400

What is strata? E 400

E 500 A 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 called… F 100

What are fossils? F 100

The scientific study of fossils… F 200

What is paleontology? F 200

A fossilized mark that formed in sedimentary rock by the movement of an animal on or within soft sediment… F 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 time… F 400

What is index fossil? F 400

Fossilized dung or waste materials from ancient animals are called F 500

What are coprolites? F 500

The Final Jeopardy Category is: Processes Please record your wager. Click on screen to begin

The 3 of 4 characteristics that define an index fossil… Click 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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