WorksheetsGeologic History
Total questions: 20
Worksheet time: 27mins
Which letter best represents an index fossil?
A
B
C
D
When did a mass extinction of dinosaurs and many land plants occur?
65.5 mya
251 mya
300 mya
440 mya
According the graph, a piece of timber containing one-fourth of the amount of carbon-14 that is found in a living tree, died about how many years ago?
11,400 years
22,800 years
5,700 years
17,100 years
Fossils of species that lived on Earth for short periods of time, were abundant, and were widespread geographically are...
absolute date
original remains
index fossils
trace fossils
What appears to have occurred in the section labeled B in the figure
Sediment was deposited on sloped ground.
Sediment was deposited on sloped ground that later became level.
Sediment was deposited on level ground that later tilted.
Sediment was deposited on level ground that stayed level.
The vertical section of rock in this image is a(n)
igneous intrusion
metamorphic foliation
sedimentary structure
none of the above
True of False: Igneous Intrusions and Extrusions are younger than the rock layers they cut through
True
False
True or False: Fragments of rock found inside another rock are always older than the rock of which they are a part
True
False
What letter represents the most recent geologic activity?
A
B
C
D
E
Strata is another name for _____________________
rocks
layers
mountains
fossils
How many grams are left after 1 half life?
