Edit Game
Unit 8: Geologic Time
 Delete

Use commas to add multiple tags

 Private  Unlisted  Public



 Save

Delimiter between question and answer:

Tips:

  • No column headers.
  • Each line maps to a question.
  • If the delimiter is used in a question, the question should be surrounded by double quotes: "My, question","My, answer"
  • The first answer in the multiple choice question must be the correct answer.

 Import questions





 Save   20  Close
The second-largest division of geologic time, which is subdivided into periods, is an...
Era
________ (cells that contain internal organs) developed into the first really big, complex, and sometimes kinda weird forms of life.
Eukaryotes
Which type of animal, also shown in the picture, can thrive in dry conditions (unlike amphibians)?
Reptile
Which fossil in the picture serves as an index fossil?
A
Which eon of Earth's history has no fossils?
Hadean Eon
Dying out or extermination of a species is called...
Extinction
An animal with a backbone is called a...
Vertebrate
Most major groups of animals first appeared in the fossil record during the...
Cambrian Explosion
Index fossils belong to organisms that lived in a ________ area for a ________ amount of time.
Large area, short amount of time
The animal this fossil belongs to is a...
Giant prehistoric sloth
Which is the youngest rock layer in the picture?
H
Which rock layer came first: R, X, B, or F?
X
This method of dating rocks, which calculates a rock’s age in years by measuring the amount of radioactive isotopes, is only useful for igneous rocks.
Radioactive dating
The Law of ________ says that if a fault or intrusion cuts through another body of rock, then it must be younger than the rock it cuts through.
Cross-Cutting Relationships
The Law of ________ says that older layers of rock are always found below younger layers of rock.
Superposition
How old something actually is in years is known as...
Absolute age
The age of one thing in comparison to another is called...
Relative age
What generally happened at the end of each era of Earth's history?
A mass extinction event
Why was it necessary for plants to be present before animals could survive?
Oxygen, food
If the Earth's entire 4.5-billion-year history is represented by my arm span, human existence is the size of...
A fingernail shaving
Your experience on this site will be improved by allowing cookies.