WorksheetsEarth's Past
Total questions: 24
Worksheet time: 13mins
Which method is most appropriate for finding the age of the earth in years?
radiometric dating
asolute dating
atomic number counting
mass number counting
The age of the Canyon Diablo meteorite was determined by using the half-life of _____.
carbon-14
hydrogen-3
uranium-235
potassium-40
About how long ago did oxygen begin to accumulate in earth’s atmosphere?
2 billion years ago
20 million years ago
2 million years ago
0.2 million years ago
How did stromatolites contribute oxygen to the early atmosphere?
by weathering of rocks
through photolysis
through photosynthesis
through methane degradation
Which of the following is a type of rock formation created by tectonic uplift and subsequent weathering?
mesa
horn
alcove
stack
Which of the following is an example of a glacial formation?
mesa
horn
arch
butte
_____ occurs when an ice sheet scours and wears away at the underlying rock, gradually wearing it down over time.
Plucking
Abrasion
Volcanism
Gravitation
_____ occurs when the chunks of rock become bonded to the ice sheet, so that when the ice sheet moves it carries the chunks of rock with it.
Plucking
Abrasion
Volcanism
Gravitation
A distinct formation is formed when both of the abrasion and plucking wear away a rock body.
horn
arete
stack
alcove
An isolated flat-topped hill with steep sides, fairly lage, found in landscapes with horizontal strata is a _____.
mesa
arete
stack
alcove
An isolated hill with steep sides and a flat top that is much smaller than other flat-topped hills is a(n) _____/
mesa
arete
butte
alcove
Relating to the wind; produced or carried by the wind.
aeolian
abrasion
scouring
degradation
Which is a characteristic of an index fossil?
small geographic range
large body size
short-lived as a species
were plants instead of animals
Which of the following is an example of a trace fossil?
fossilized bone
cast of a shell
coprolite/fossilized dung
fossilized teeth
Which are the forces that can shape or sculpt a rock formation? (Choose three.)
wind erosion
coastal erosion
ice/glaciation
canal formation
ornadic activity
Which are the forces that can shape or sculpt a rock formation? (Choose three.)
tectonic activity
coastal erosion
river erosion
canal formation
ornadic activity
Which statement is true about fossils?
Only the remains of animals, and not plants, can be made into a fossil.
The remains of an organism that lived 500 years ago is called a fossil.
To officially be a fossil, the remains of an entire organism must be found.
A fossil is any trace of prehistoric life.
Which principle states that fossils will be placed in rock layers according to a chronological order?”
index fossilization
carbonization
faunal succession
floral succession
Rock formations are sculpted into shape by two general processes. Which are they?
weathering
volcanism
erosion
rainfall
What gas dominated earth’s first atmosphere?
methane
hydrogen
water vapor
nitrogen
Which process created the gases of earth’s first atmosphere?
volcanic activity
photosynthesis
photolysis
weathering
What two processes contributed oxygen to earth’s second atmosphere?
photosynthesis
weathering
weathering
volcanism
photolysis
Banded iron formations show us when _____.
oxygen became plentiful on earth
rocks were first formed on earth
the oceans began forming on earth
volcanic activity started on earth
Based on scientific evidence, what, approximately, is the age of the earth?
5.6 billion years
6.5 million years
4.6 billion years
4.6 million years
