Worksheets8.E.2 Earth History Review
Total questions: 61
Worksheet time: 53mins
Name
Class
Date
1.
Which best describes a fossil that helps determine the relative age of a rock layer?
a)
trace fossil
b)
index fossil
c)
radioactive fossil
d)
unconformity fossil
2.
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
3.
Which characteristic of carbon-14 dating helps scientists determine the approximate time a species became extinct?
a)
Carbon-14 is not present in more recent fossils
b)
Carbon-14 increases at a constant rate over time
c)
Carbon-14 decreases at a constant rate over time
d)
Carbon-14 can only be found in fossils of a certain period
4.
The Era when life began was...
a)
cenozoic
b)
paleozoic
c)
mesozoic
d)
precambrian
5.
The longest Era was...
a)
Precambrian
b)
Paleozoic
c)
Mesozoic
d)
Cenozoic
6.
Trilobites are found in the _____________.
a)
Cenozoic
b)
Mesozoic
c)
Paleozoic
d)
Cretaceous
7.
Which layer is the oldest?
a)
3
b)
4
c)
1
d)
5
8.
What occurs at the end of a geologic era?
a)
flood
b)
extinction
c)
comet
d)
mountains form
9.
According to the law of superposition, the oldest fossils are found
a)
At the top of the rock layers
b)
Near the bottom of the rock layers
c)
In the middle of the rock layers
d)
Somewhat near the surface
10.
What role do faults play in the Law of Superposition?
a)
Faults create new types of rock.
b)
Faults are younger than the layers they cut through.
c)
Faults are the same age as the layers they cut through.
11.
Several different fossils were found in rock layers in a geologic column. Above these rock layers, the fossils were almost nonexistent. Which most likely explains these observations?
a)
A nonconformity occurred
b)
All the organisms migrated.
c)
A period of mass extinction occurred.
12.
The following diagram shows rock layers that are cut by a fault and two bodies of rock (rock 1 and rock 2). What are the relative ages of the features in order of oldest to youngest?
a)
fault, rock 1, rock 2, layer 1
b)
layer 1, rock 2, rock 1, fault
c)
layer 1, rock 2, rock 1, fault
d)
fault, rock 2, layer 1, rock 1
13.
Which layer is the oldest?
a)
H
b)
B
c)
F
d)
R
14.
Which layer is younger?
a)
O
b)
N
c)
M
d)
P
15.
What is the correct order of events from oldest occurring to the most recent?
a)
C,DE,B,A,
b)
E,A,B,C,D
c)
B,D,E,A,C
d)
C,B,A,D,E
16.
An ordered arrangement of rock layers that is based on the relative ages of the rocks
a)
Superposition
b)
Unconformity
c)
Layered
d)
Geologic Column
17.
The Principle of Cross-Cutting Relationships states that an igneous intrusion is
a)
always younger than the layers it cuts across
b)
always older than the layers it cuts across
c)
the same age as the rock it melted
d)
none of the answers are correct
18.
The statement that the oldest layer will be at the bottom in an undisturbed sequence of rock layers is called the Principle of ....
a)
Inclusions
b)
Unconformities
c)
Cross-Cutting Relationships
d)
Superposition
19.
Which of the following correctly lists the layers in order from oldest to youngest?
a)
A, B, C, D, E
b)
E, B, C, D, A
c)
E, D, C, B, A
d)
C, B, A, D, E
20.
The statement "Layer B is younger than layer E" can be determined by using which principle?
a)
Principle of Horizontality
b)
Principle of Cross-Cutting Relationships
c)
Principle of Inclusions
d)
Principle of Superposition
21.
Rock made of layers of compressed sediments
a)
metamorphic rock
b)
igneous rock
c)
sedimentary rock
d)
school house rock
22.
The breakdown of rock into smaller particles from the effects of wind, water and ice
a)
erosion
b)
cementation
c)
pressure
d)
weathering
23.
What type of rock do fossils usually form in?
a)
granite
b)
glaciers
c)
tar pits
d)
sedimentary rock
24.
Do all fossils form in amber?
a)
yes
b)
no
25.
In very cold climates, fossils can be preserved in _____.
a)
ice
b)
tar
c)
amber
d)
mud
26.
When mud and sediment build up around the deceased organism, it is called what type of fossil?
a)
a mold fossil
b)
a cast fossil
c)
an imprint fossil
d)
a carnivore
27.
What type of fossil forms when a cast fossil fills up with minerals and sediment, eventually turning it to hardened rock?
a)
cast fossil
b)
mold fossil
c)
body fossil
d)
imprint fossil
28.
Principle that Earth's processes occurring today are similar to those that occurred in the past
a)
unconformities
b)
uniformitariansim
c)
superposition
29.
Time it takes for half of an isotopes atoms to decay
a)
relative age
b)
absolute age
c)
half-life
30.
Fossil of thin layer of carbon atoms and molecules
a)
original remains
b)
carbon film
c)
trace fossil
31.
Correctly sequence the layers of rocks oldest to youngest
a)
C,E,D,A,B
b)
C,E,D,A,B
c)
C,E, D,B,A
32.
Relative Dating dates rocks __________
Absolute Dating dates rocks __________
Absolute Dating dates rocks __________
a)
exact age; sequence
b)
sequence; exact age
c)
exact age; parent isotopes
d)
Laws; Isotopes
33.
The length of time required for half of the radioactive atoms in a sample to decay is its...
a)
era
b)
age
c)
half-life
d)
eon
34.
What percent of carbon-14 would be left after 11,460 years? (2 half lives)
a)
100%
b)
75%
c)
50%
d)
25%
35.
what's the half life of this substance?
a)
1 day
b)
5 days
c)
3 days
d)
9 days
36.
Why are isotopes with short half-lives not useful for dating very old rocks?
a)
because not enough of the parent isotope remains to measure accurately
b)
because not enough of the daughter product has formed to be detectable
c)
because neither the parent isotope nor the daughter product will be detectable
d)
because very old rocks would never have contained these isotopes
37.
The Earth is estimated to be how old?
a)
4.6 Million years old
b)
6,000 years old
c)
4.6 Billion years old
d)
Who knows
38.
How much of the parent isotope is left after 3 half lives?
a)
100%
b)
50%
c)
25%
d)
12.5%
39.
You find a rock sample with radioactive atoms present. If 12.5% of the original radioactive atoms were present, how many half-lives has the rock been around for? (Hint, at Half-Life = 0, you start with 100%)
a)
zero
b)
1
c)
2
d)
3
40.
In which time period are we currently living?
a)
Precambrian Time
b)
Paleozoic Era
c)
Paleozoic Era
d)
Cenozoic Era
41.
Jellyfish are one of the oldest species on Earth. In what time period did they first appear?
a)
Precambrian Time
b)
Paleozoic Era
c)
Mesozoic Era
d)
Cenozoic Era
42.
In what time period did Pangaea, the super continent, appear?
a)
Precambrian Time
b)
Paleozoic Era
c)
Mesozoic Era
d)
Cenozoic Era
43.
Dinosaurs, small mammals, and birds are found in this time period.
a)
Precambrian Time
b)
Paleozoic Era
c)
Mesozoic Era
d)
Cenozoic Era
44.
The Geologic Time Scale is a record of what?
a)
old geologists
b)
the known history of rocks and fossils
c)
a list of every living thing ever
d)
None of the above
45.
Look at the diagram, what layer did animal E first show up in?
a)
Layers #4
b)
Layers #5
c)
Layers #6
d)
Layers #7
46.
Which of the following is NOT an example of a fossil?
a)
a petrified dinosaur bone
b)
a footprint captured in mud
c)
a seashell found on the beach
d)
an insect stuck in amber
47.
Which of the following is NOT something you could learn from a fossil?
a)
The size of the animal
b)
What the animal ate
c)
The color of the animal
d)
Where the animal lived
48.
Why don't we know what many ancient plants looked like?
a)
They had too many soft parts.
b)
They were all eaten by dinosaurs.
c)
There weren't ancient plants.
d)
They had too many hard parts.
49.
What happens when a group of animals become extinct?
a)
All of its members have died.
b)
Only a few of its members are still living.
c)
The animals can no longer lay eggs.
d)
All of its members move to another place.
50.
Which statement BEST describes how the fossil bones of a dinosaur are formed?
a)
The dinosaur became trapped in amber.
b)
The dinosaur was covered in sediment.
c)
The dinosaur was frozen in ice.
d)
The dinosaur stepped in wet mud.
51.
Principle that Earth's processes occurring today are similar to those that occurred in the past
a)
unconformities
b)
uniformitariansim
c)
superposition
52.
The following organisms can be killed by antibiotics
a)
Viruses
b)
Fungi
c)
Protists
d)
Bacteria
53.
Biotechnology is _____________?
a)
is the use of biological processes, organisms, or systems to manufacture products intended to improve the quality of human life.
b)
is the use of DNA and the double helix.
c)
is the use of microbes.
54.
Millions of people living all over the world have cancer. Is cancer a pandemic?
a)
No, because cancer is not contagious.
b)
No, because cancer is not always fatal.
c)
Yes, because millions of people have cancer.
d)
Yes, because people all over the world have cancer.
55.
In 1918, an outbreak of influenza infected 500,000 people all over the world. Tens of millions of those infected died. In 1994, an outbreak of pneumonic plague spread quickly through the city of Surat in India, killing 52 people.
Which statement BEST describes the two events?
Which statement BEST describes the two events?
a)
Both outbreaks were pandemics.
b)
Both outbreaks were epidemics.
c)
The influenza outbreak was a pandemic. The plague outbreak was an epidemic.
d)
The influenza outbreak was an epidemic. The plague outbreak was a pandemic.
56.
Used for short term (quick) energy.
a)
carbohydrates
b)
lipids
c)
proteins
d)
nucleic acids
57.
Provides long term energy and insulation,
a)
lipids
b)
carbohydrates
c)
nucleic acids
d)
proteins
58.
Geothermal energy is energy from
a)
the sun
b)
heat from deep in the earth
c)
wind
d)
inexhaustable
59.
Wind energy is
a)
generated from moving water
b)
starts with moving air and generates electricity
c)
starts with the sun
d)
comes from the earth
60.
Which alternative energy source is generated beneath Earth’s crust and can be used to heat buildings?
a)
Hydroelectric energy
b)
Geothermal energy
c)
Wind energy
d)
Solar energy
61.
Which type of alternative energy source is shown in this picture?
a)
Wind
b)
Solar
c)
Hydroelectric
d)
Geothermal
100 %
