Chapter 6 Test - Craig Fisher | Library

MULTIPLE CHOICE
-Choose the correct answer by clicking on your answer choice. Only one answer is correct. (2 pts. each)

2

How are rock layers arranged in the geologic column?

2

What does a scientist need to know in order to find out the absolute age of a rock?

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What is amber?

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Which of the following is an example of a trace fossil?

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Which kind of temperatures will slow down an organism's rate of decay?

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What does the rock and fossil record represent?

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If a trilobite were buried by ocean sediment, it would leave a cavity, or a(n)

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What process involves the comparison of rock layers with others in a sequence to determine its age?

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A fossil used to date surrounding rock layers is called a(n)

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To determine the most accurate and precice age of the Earth's oldest rocks, geologists would use

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What do scientists think may have caused dinosaurs to become extinct?

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What happens during radioactive decay?

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How do geologists use the geologic time scale?

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What can animal tracks tell about the animal that left them?

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What can a scientist learn by studying the relationships between fossils?

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Global climate change may have caused the extinction of which group of animals?

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What process compares one rock layer with others in a sequence?

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Molten rock that squeezes into existing rock and cools is called what?

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Which of the following is not a measure of absolute dating?

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What do scientists know about an undisturbed sequence of rocks?

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Where are most fossils preserved?

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As long as a sequence of rock layers is undisturbed, what can scientists know about it FOR CERTAIN?

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How old would rock surrounding a Tropites fossil be?

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During which eon were the earliest known rocks formed on Earth?

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Which of the following can scientists NOT interpret by examining fossils?

COMPLETION
-Complete the following questions by selecting the correct answer from the word bank. Misspelled words will be marked as incorrect. Some answers may be used more than once, others may not be used at all. (2 pts. each)

Word Bank
cast     mold     disconformities     relative dating     unconformities     uniformitarianism     catastrophism     epochs     eons     index fossils     fossils     radiometric dating     radioactive decay     isotope     stable     unstable     daughter     parent     Phanerozoic     Mesozoic     Paleozoic     Cenozoic     Proterozoic

2

According to the principle of ____________________, geologic process operate today as they did in the Earth's past.

Word Bank
cast     mold     disconformities     relative dating     unconformities     uniformitarianism     catastrophism     epochs     eons     index fossils     fossils     radiometric dating     radioactive decay     isotope     stable     unstable     daughter     parent     Phanerozoic     Mesozoic     Paleozoic     Cenozoic     Proterozoic

2

A trilobite was buried by ocean sediment, leaving a cavity, or ___________________.

Word Bank
cast     mold     disconformities     relative dating     unconformities     uniformitarianism     catastrophism     epochs     eons     index fossils     fossils     radiometric dating     radioactive decay     isotope     stable     unstable     daughter     parent     Phanerozoic     Mesozoic     Paleozoic     Cenozoic     Proterozoic

2

The process of ____________________ involves the comparison of one rock layer with others in a sequence to determine its age.

Word Bank
cast     mold     disconformities     relative dating     unconformities     uniformitarianism     catastrophism     epochs     eons     index fossils     fossils     radiometric dating     radioactive decay     isotope     stable     unstable     daughter     parent     Phanerozoic     Mesozoic     Paleozoic     Cenozoic     Proterozoic

2

The largest divisions of geologic time are called _______________.

Word Bank
cast     mold     disconformities     relative dating     unconformities     uniformitarianism     catastrophism     epochs     eons     index fossils     fossils     radiometric dating     radioactive decay     isotope     stable     unstable     daughter     parent     Phanerozoic     Mesozoic     Paleozoic     Cenozoic     Proterozoic

2

Erosion is a major cause of missing rock layers known as _______________________.

Word Bank
cast     mold     disconformities     relative dating     unconformities     uniformitarianism     catastrophism     epochs     eons     index fossils     fossils     radiometric dating     radioactive decay     isotope     stable     unstable     daughter     parent     Phanerozoic     Mesozoic     Paleozoic     Cenozoic     Proterozoic

2

Remains of organisms that often are preserved in sedimentary rock are called ____________________.

Word Bank
cast     mold     disconformities     relative dating     unconformities     uniformitarianism     catastrophism     epochs     eons     index fossils     fossils     radiometric dating     radioactive decay     isotope     stable     unstable     daughter     parent     Phanerozoic     Mesozoic     Paleozoic     Cenozoic     Proterozoic

2

Finding the age of a rock based on the ratio of parent material to daughter material is called ___________________.

Word Bank
cast     mold     disconformities     relative dating     unconformities     uniformitarianism     catastrophism     epochs     eons     index fossils     fossils     radiometric dating     radioactive decay     isotope     stable     unstable     daughter     parent     Phanerozoic     Mesozoic     Paleozoic     Cenozoic     Proterozoic

2

When an isotope is _______________, it stays in its original form.

Word Bank
cast     mold     disconformities     relative dating     unconformities     uniformitarianism     catastrophism     epochs     eons     index fossils     fossils     radiometric dating     radioactive decay     isotope     stable     unstable     daughter     parent     Phanerozoic     Mesozoic     Paleozoic     Cenozoic     Proterozoic

2

When an isotope is ________________, it is radioactive.

Word Bank
cast     mold     disconformities     relative dating     unconformities     uniformitarianism     catastrophism     epochs     eons     index fossils     fossils     radiometric dating     radioactive decay     isotope     stable     unstable     daughter     parent     Phanerozoic     Mesozoic     Paleozoic     Cenozoic     Proterozoic

2

The more _______________ material there is in a rock sample, the older the rock is.

Word Bank
cast     mold     disconformities     relative dating     unconformities     uniformitarianism     catastrophism     epochs     eons     index fossils     fossils     radiometric dating     radioactive decay     isotope     stable     unstable     daughter     parent     Phanerozoic     Mesozoic     Paleozoic     Cenozoic     Proterozoic

2

The ______________ era is known as the Age of Reptiles.

Word Bank
cast     mold     disconformities     relative dating     unconformities     uniformitarianism     catastrophism     epochs     eons     index fossils     fossils     radiometric dating     radioactive decay     isotope     stable     unstable     daughter     parent     Phanerozoic     Mesozoic     Paleozoic     Cenozoic     Proterozoic

2

The eon we live in now is the ____________________ eon.

Word Bank
cast     mold     disconformities     relative dating     unconformities     uniformitarianism     catastrophism     epochs     eons     index fossils     fossils     radiometric dating     radioactive decay     isotope     stable     unstable     daughter     parent     Phanerozoic     Mesozoic     Paleozoic     Cenozoic     Proterozoic

2

We live in the ______________ era, which began about 65 million years ago.

Word Bank
cast     mold     disconformities     relative dating     unconformities     uniformitarianism     catastrophism     epochs     eons     index fossils     fossils     radiometric dating     radioactive decay     isotope     stable     unstable     daughter     parent     Phanerozoic     Mesozoic     Paleozoic     Cenozoic     Proterozoic

2

The ______________ era ended about 248 million years ago.

Sequencing - Sequence the following geologic cross sections.

2

The pictures above show geologic changes. However, the pictures are out of order. Label the pictures with the letters A, B, C, D & E to show the correct geological sequence. The picture at the far left is to be labeled with the letter C. Record your answer with the letter sequence that correctly shows the geological sequence from left to right.

MATCHING
Complete the following matching questions by clicking on the correct answer. Only one answer is correct. (2 pts. each)

2

The process in which minerals replace tissues.

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A preserved trace or remains of an organism that lived long ago, most commonly preserved in sedimentary rock.

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A mark or cavity made in a sedimentary surface by a shell or other body.

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A fossil from a specific time period.

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A fossil formed by an animal's movement.

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A mold filled with sediment.

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The idea that geologic processes now are the same as in the past.

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The idea that geologic change happens suddenly.

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The study of past life.

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A science that combines uniformitarianism and catastrophism.

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