Show:
Supercontinents
Survivor Trivia
Eons and Eras
Periods
Epochs
100
This theory explains the Earth's crustal movements
What is plate tectonics theory
100
The time it takes for half of a given quantity of a radioisotope to decay
What is half-life
100
Name of the earliest eon during which the Earth's crust was formed
What is Hadean
100
The Age of the Dinosaurs
What is the Jurassic period
100
Name of the most current epoch (present day)
What is the Holocene
200
All land masses collided to form this single world continent
What is Pangea
200
After 3 half-lives, what percentage of a radioisotope remains?
What is 12.5%
200
Era during which the dinosaurs lived
What is the Mesozoic
200
The most current period in time
What is the Neogene
200
Paleocene, the first epoch of the Paleogene period, marked the beginning of the Age of _________.
What are Mammals
300
An old supercontinent located in the southern tropics
What is Gondwana
300
The boundaries of geological time periods are defined by these occurrences.
What are abrupt transitions in the fossil record.
300
Most recent era during which mammals flourished
What is the Cenozoic
300
Period during which coals seams originated from
What is the Pennsylvanian
300
The first bipedals appeared during this epoch
What is the Pleiocene
400
Theory advanced by Charles Lyell which directly challenged 19th century views on the age of the Earth
What is the Theory of Uniformity
400
The Earth's age
What is 4.6 billion years
400
Eon during which life first appeared
What is the Archaen
400
Flowering plants emerged during this period
What is the Cretaceous period
400
Human expansion occurred during this epoch
What is the Pleistocene
500
The movement of the Earth's crust atop a liquid core
What is continental drift
500
The isotope used for dating previously living organisms
What is Carbon-14
500
The early eons Hadean, Archaen, and Proterozoic are often referrred to by this name
What is Pre-Cambrian
500
The most massive extinction occurred at the end of this period, just prior to the Mesozoic era
What is the Permian period
500
The epochs all occurred during this Era
What is the Cenozoic