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Law Of Superposition, Fossil Record
Test Description: FCAT Practice
Instructions: Answer all questions to get your test result.
1) Juan is studying fossils. His teacher wrote the following statements on the board and asked the students to put them in the correct order to describe how fossils are formed. 1. Minerals seep into the organism’s body and replace it with stone. 2. The
A
3,4,1,2
B
1,3,2,4
C
3,2,1,4
D
2,3,4,1
2) Which of these statements is true of the fossil record?
A
Newer layers contain organisms more similar to modern-day organisms than do older layers.
B
The fossil record contains mostly soft organisms that had no hard bones or outer shells.
C
The fossil record contains a complete record of every extinct organism.
D
Older layers contain organisms more similar to modern-day organisms than do newer layers.
3) The fossil record contains fossils from many geologic ages. Fossils enable scientists to piece together what ancient organisms looked like. Which of these answers best describes how fossils in the fossil record are classified?
A
by similarities in their DNA and in the minerals they contain
B
by whether the fossil contains hard or soft tissues
C
by size and the type of rock in which they are found
D
by ages and physical similarities
4) Mr. Van listed the following four topics on the board. 1. relationships between extinct and living organisms 2. ancestors of living organisms 3. ways that groups of species are related 4. genetic similarities and differences between extinct and mo
A
1,2 and 3
B
all
C
1
D
1,2
5) Which type of evidence acts as a record of changes in species over time and indicates major changes in Earth’s surface and climate?
A
ripple marks ad mud cracks
B
fossil record
C
composition of ice core samples
D
movement of continents
6) Fossils of the same plants and animal species have been found on continents that are separated by the Atlantic Ocean. Which of the following statements does this observation support?
A
The Atlantic Ocean was once a large body of freshwater.
B
The continents that are now separated by the Atlantic Ocean once formed a single landmass.
C
The continents that are now separated by the Atlantic Ocean have the same kinds of organisms today as they did millions of ye
D
These animals and plants crossed the Atlantic Ocean.
7) What is the law of superposition?
A
Metamorphic rock is older than nearby sedimentary rock because sedimentary rock is deposited before metamorphic rock forms.
B
The exact age of a sedimentary rock layer can be found using the layers above and below it, even if the layers are not in the
C
Igneous rock is older than nearby sedimentary rock, which is older than nearby metamorphic rock.
D
A sedimentary rock layer in its original position is older than the layers above it and younger than the layers below it
8) A geologist is studying three layers of sedimentary rock in an area. The layers have not shifted from their original positions. The geologist records the relative ages of the rocks. The bottom layer is listed as the oldest. The top layer is listed as
A
the law of superposition
B
radioactive decay
C
mineral content
D
principle of unconformity
9) Which property of fossils allows scientists to determine the relative ages of rock layers?
A
Fossils show change over time as species evolve.
B
Fossils are usually found only in sedimentary rock.
C
Fossils form from the remains of living organisms.
D
Fossils can be analyzed to determine their exact ages.
10) How do scientists use fossils to determine the relative ages of rock layers?
A
by locating other areas of the world where the same fossils are found
B
by comparing fossils in many different rock layers
C
by comparing all the fossils in one rock layer
D
by determining the positions of fossils in many different rock layers
*select an answer for all questions
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