Download EarthAge 8.E.2.1 Warm Up Questions for website

Which are scientists MOST LIKELY
to use to estimate the age of Earth?
A. water samples
B. soil samples
C. rock layers
D. organic fossils
Which conclusion can be made when
observing multiple undisturbed layers of rock?
A. The shallow layers are older than the
deeper layers.
B. The deeper layers are older than the
shallow layers.
C. The deeper layers are younger than the
shallow layers.
D. The shallow layers are the same age as the
deeper layers.
Which method of radioactive dating would be MOST
useful in determining the age of a human fossil?
A. rubidium strontium method
B. potassium agron method
C. uranium lead method
D. carbon 14 method
Which is a process that allows scientists to
compare rock layers with others in a sequence to
determine their age?
A. relative dating
B. absolute dating
C. radiometric dating
Which material from an archaeological dig is
LEAST LIKELY to be studied using the
radioactive isotope carbon-14?
A. wooden tool handle
B. tooth a mammal
C. granite cutting tool
D. bone fragment of fish
Question 246
246. Which BEST describes a fossil that helps
determine the relative age of a rock layer?
A. index fossil
B. trace fossil
C. radioactive fossil
D. unconformity fossil
Question 247
What is the BEST description for how trace fossils
are different from fossils of an organism's
remains?
A. Trace fossils are fossilized tracks and other
evidences of an organism's activity.
B. Trace fossils are fossilized waste of an animal.
C. Trace fossils are parts of the original organism.
Question 248
Which is used to find the relative age of a
rock?
A. uranium dating
B. carbon 14 dating
C. position of rock layers
D. composition of rock layers
By which method have scientists determined
that the Earth is about 4.5 billion years old?
A. plate tectonics
B. relative dating
C. radioactive dating
D. law of superposition
If a metamorphic rock contains an intrusion of
igneous rock, which rock is the oldest?
A. The igneous rock is older
B. The rocks are the same age
C. The metamorphic rock is older
Which BEST explains the use of radioactive
dating?
A. to determine the presence of index fossils
B. to determine the relative age of a rock layer
C. to determine the absolute age of a rock layer
D. to determine changes in the surface of the
Earth
Which makes a good index fossil?
A. a fossil not commonly found in rocks
B. a fossil that lived throughout the geologic time
C. a fossil that lived during three geologic time
periods
D. a fossil that lived during only one geologic time
period
Which is used in radioactive dating?
A. carbon 14
B. index fossils
C. hydrochloric acid
D. law of superposition
Which is the MOST accurate method scientists
can use to estimate Earth's age?
A. relativism
B. superposition
C. relative dating
D. radioactive dating
255. Radioactive dating is used to study which
element in igneous and metamorphic rock?
A. uranium
B. krypton
C. carbon
D. oxygen