Earth Sci Ch 30 Vocab: Question Preview (ID: 2449)

Below is a preview of the questions contained within the game titled EARTH SCI CH 30 VOCAB: Geologic Time Vocabulary .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.

An exposed area of the oldest continental rock, or craton, is called
a) a volcano
b) a shield
c) an eon
d) graptolite

What is the name of a sea scorpion that lived in the Silurian period?
a) crinoid
b) ammonites
c) dinosaur
d) eurypterid

Mats of cyanobacteria that formed domes in Precambrian time are called
a) trilobites
b) stromatolites
c) graptolites
d) foraminifera

A crablike invertebrate that is the most common fossil of the Cambrian is called
a) a trilobite
b) an eurypterid
c) dinosaur
d) hominid

A modern human or a recent human like ancestor is called
a) a foraminifera
b) an ammonite
c) a hominid
d) crinoid

The longest segment of geologic time is
a) a period
b) an epoch
c) an eon
d) an era

Main divisions of an eon are divided into
a) period
b) epochs
c) eras
d) hours

Eras are divided into
a) eons
b) periods
c) epochs
d) days

Ancient plant-looking creatures related to seastars are called
a) foraminifera
b) crinoids
c) eurypterids
d) trilobites

Ancient tiny animals that lived in oceans & are good index fossils are
a) trilobites
b) graptolites
c) eurypterids
d) crinoids

Play Games with the Questions above at
To play games using the questions from the data set above, visit and enter game ID number: 2449 in the upper right hand corner at or simply click on the link above this text.

Log In
| Sign Up / Register