Geologic Time review

Open Ended

What is your favorite Dinosaur and why? 

Multiple Choice

Which type of fossil is evidence of an organism's activity?

• Index

• Preserved

• Trace

• Tar pit

Poll

 Which type of fossil forms when organic material is trapped in ice, tar, amber or rock? 

• preserved

• index

• trace

• core

Multiple Choice

Which of the following orders the rock layers accurately from oldest to youngest?

• A, B, C, D, E, F, G, H

• B, F, G, C, D, H, A, E

• B, G, C, D, E, H, A, F

• F, A, H, E, D, C, G, B

Multiple Choice

Which of the following orders the rock layers accurately from youngest to oldest?

• 1, 2, 3, 4, 5
• 5, 4, 3, 2, 1
• 2, 3, 4, 5, 1
• 1, 2, 3, 5, 4

Multiple Choice

Which of these rock layers is relatively the newest?

• Kaibab formation
• Zoraster Granite
• Redwall limestone
• Unkar group

Multiple Choice

Which of the following occurred relatively most recently?

• Basalt intrusion
• Breccia
• Conglomerate
• Sandstone

Multiple Choice

Which of the following orders the rock layers accurately from oldest to youngest?

• F, E, D, C, B, A
• A, B, C, D, E, F
• D, A, B, C, E, F
• F, E, A, B, C, D

Multiple Choice

Which of the following rock layers is relatively the oldest?

• H
• P
• L
• M

Multiple Choice

Which of the following occurred relatively most recently?

• A
• B
• C
• D

Multiple Choice

Which fossil is relatively the oldest?

• Trilobite
• Ammonite
• Crinoid
• Gastropod

Multiple Choice

Which of the following happened in first?

• Deer
• Dog
• Human
• Bear

Multiple Choice

Which of the following does the law of superposition tell scientists?

• Absolute age
• Relative age
• Exact age
• All of the answer choices

Multiple Choice

Radioactive carbon-14 is often useful in determining the absolute age of geologic samples because radioactive isotopes

• decay at a regular rate

• become less stable during decay

• remain unchanged over time

• stabilize after four half-lives

Multiple Choice

Which radioactive element is used to determine the absolute age of late Pleistocene animal remains?

• rubidium-87

• uranium-238

• potassium-40

• carbon-14

Multiple Choice

Which diagram best represents the percentage of this radioactive isotope sample that will remain after 2 half-lives?

Multiple Choice

Which is the best reason for scientists to study ice cores obtained from Earth’s ice caps?

• to evaluate potential oil drilling sites

• to study the quality of water stored in glaciers

• to determine the rate of melting in polar regions

• to study past climates by analyzing trapped gases and particles

Multiple Choice

Approximately how old is the Earth?

• 4.5 billion years old

• 4.5 million years old

• 4,500 years old

• 4.5 trillion years old

• 1 billion years old

Multiple Choice

The longest units of geologic time are

• eons

• eras

• periods

• epochs

Multiple Choice

The shortest units of geologic time are

• eons

• eras

• periods

• epochs