Geologic Timescale: Question Preview (ID: 18004)

Below is a preview of the questions contained within the game titled GEOLOGIC TIMESCALE: Organization Of The Geologic Timescale .To play games using this data set, follow the directions below. Good luck and have fun. Enjoy! [print these questions]

Play games to reveal the correct answers. Click here to play a game and get the answers.

When did birds begin to fly?
a) permian
b) jurassic
c) cretaceous
d) silurian

When did Earth form, rocks form, and oxygen levels increase?
a) silurian
b) precambrian
c) triassic
d) cambrian

Which era are we currently in?
a) quaternary
b) cenozoic
c) mesozoic
d) permian

Which period are we currently in?
a) quaternary
b) permian
c) cenozoic
d) jurassic

What determines when a period starts or ends on the geologic timescale?
a) new period begins every 100,000 years
b) development of new landforms
c) changes in climate
d) major changes in life

Approximately how old is Earth?
a) 4.6 thousand years old
b) 4.6 billion years old
c) 4.6 million years old
d) 4.6 years old

What is the largest grouping on the geologic timescale?
a) period
b) era
c) eon
d) epoch

What is the name of the scale used to organize events in the Earth's history?
a) geographic timescale
b) geologic timescale
c) geofossil timescale
d) geography timescale

Which event occurred first?
a) dinosaurs dominated
b) reptiles emerged
c) amphibians moved onto land
d) mammals dominated

Which of the following has the categories of the timescale in order from largest to smallest?
a) eon, era, period, epoch
b) epoch, period, era, eon
c) era, eon, period, epoch
d) period, eon, era, epoch

Play Games with the Questions above at
To play games using the questions from the data set above, visit and enter game ID number: 18004 in the upper right hand corner at or simply click on the link above this text.

Log In
| Sign Up / Register