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6th Grade Fall Semester Review
How do most fossils form?
What type of fossil is shown below?
6th Grade Fall Semester Review
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1
What type of fossil is shown below?
Cast
Petrified
Carbon Film
Mold
2
How do most fossils form?
Freezing preserves the remains of an organism.
Living things die and their remains are buried by sediments.
The hard parts of an organism dry out in the air.
The soft parts of an organism change to stone
3
Certain ammonites are used as ___________ fossils because they lived in many different areas but for only a brief time.
preserved
Index
Trace
4
Scientists think that convection currents flow in Earth’s
Lithosphere
Crust
Mantle
Inner Core
5
Which of the following is a nonrenewable resource?
Sunlight
Trees
Minerals
Water
6
___________________ meaning “all land,” is the name of the great landmass that existed millions of years ago.
Pandora
Pangea
Cambrian
7
The law of superposition states that, in horizontal layers of sedimentary rock, each layer is ____.
older than the layer above it and younger than the layer below it
always older than any vertical layers
younger than the layer above it and older than the layer below it
neither older nor younger than the other layers
8
When an organism no longer exists, it is....
Extinct
Evolution
Endangered
9
A _____________ plate is a large slab of crust and upper mantle that moves over the earth’s surface.
Tectonic
Sedimentary
Asthenosphere
10
The _________________________Era is sometimes referred to as the “Age of Reptiles.”
Mesozoic
Cenozoic
Paleozoic
11
Hollow area in the sediment which shows the shape of an organism or part of an organism is a ......
Mold
Cast
Petrified Fossil
Trace Fossil
12
The process by which all the different kinds of living things have changed over long periods of time is called ____.
Sedimentation
Evolution
Replacement
Deposition
13
Fossils in which minerals replace all or part of an organism is a _________________ fossil.
petrified
cast
mold
trace
14
The time it takes for one half of the atoms in a sample of a radioactive element to decay is called the element’s _____.
Absolute Age
Relative Age
Life
Half-life
15
What is the correct procedure when smelling the odor of a chemical substance?
Place your nose directly over the substance and take a big whiff.
Fan hand over beaker toward nose while beaker is several centimeters away.
Place your nose near the opening of the beaker and inhale.
Fan your hand over the substance with your nose directly over the beaker.
16
What type of boundary is this?
Divergent
Convergent
Transfom
17
50. Alfred _____________ is the scientist credited with the theory of continental drift.
Williams
Washington
Wegner
Worthington
18
New crust forms along a(n).......
Divergent boundary
Convergent boundary
Transform boundary
19
What type of boundary is this this?
Transforming
Divergnet
Convergent
Subducting
20
A fossil formed when minerals replace all or part of an organism is called a ____.
Petrified Fossil
Trace Fossil
Cast
Mold
21
The fossils of organisms that were widely distributed but only lived during a short period of time are called ____.
petrified fossils
index fossils
trace fossils
carbon film fossils
22
Which layer is the oldest
C
B
A
D
23
The evolution of photosynthetic organisms about 2.5 billion years ago led to ____.
the first mass extinction
an increase in the ultraviolet radiation reaching Earth’s surface
the Precambrian Explosion
an increase in oxygen in the atmosphere
24
A rock layer’s _________________________ age is its age compared to the ages of other rock layers.
Half-Life
Absolute
Relative
25
Two plates scrape and slide past each other at........
Transform boundaries
Convergent boiundaries
Divergent boundaries
26
Geologic time begins with the long span of time called _________________________Time.
PrecambrianTime
Cambrian Period
Devonian Period
Paleozopic Era
27
Brian was cutting during a lab & he cut his finger. It was a minor cut and hardly any blood was visible. Brian should ..
Tell his teacher immediately & do what is prescribed
Continue working because he is ok
Place a towel over the wound & keep working
Go to the sink and wash his hands with soap & water
28
Extremely thin coating on rock is a __________________.
Trace Fossil
Mold
Carbon Film
Cast
29
What is a fossil?
a perfect copy of a rock
an unusual type of rock.
the preserved remains or traces of an organism.
any dead organism
30
Which rock layer is the oldest?
H
F
D
A
31
Goggles must be wirn when using.........
Glassware
Chemicals
Fire
All of the Above
32
Horseplay and practical joles in the laboratory are....
okay
okay if you are working alone
always against the rules
not dangerous
33
Which of the following would you never find naturally in the environment?
Cotton
Minerals
Plastic
Water
34
What type of boundary is known for causing big earthquakes?
Convergent Boundary
Divergent Boundary
Transform Boundary
35
Earth’s inner core is
A layer of hot rock
A layer of molten metal
Rock that forms Earth’s outer skin
A dense ball of solid metal
36
A mold fossil is:
A moldy fossil
The imprint of an animal, or plant.
A fossil with mold on it
37
What type of fossil is shown below?
Carbon Film
Trace Fossil
Cast
Mold
38
What type of boundary is this?
Divergent
Convergent
Transfom
39
Earth’s mantle is
Rock that forms Earth’s outer skin
A layer of hot rock
A layer of molten metal
A dense ball of solid metal
40
What is a natural resource?
A material made by manipulating resources in Earth’s crust
A synthetic product made from substances or materials on Earth
A material or component found in the natural environment
A waste product made as result of manipulating resources on Earth
41
When you finish working with chemicals, biological specimens, and other lab substances, always .....
wipe your hands on a towel
wash your hands thoroughly with soap and water
treat your hand with skin lotion
wipe your hands o your clothes
42
_________________________are scientists who study fossils.
Botanists
Paleontologists
Geologists
43
What fossil type is formed from a mold
Mold
Cast
Preserved remains
Carbon film
44
____ can provide clues about the activities of ancient organisms.
Carbon Films
Trace Fossils
Molds and Casts
Remains preserved in amber
45
What is a cast fossil?
copy of the original shape of the organism.
copy of the shape of the living organism.
copy of the original shape of an organism's bone.
a copyright.
46
The following activity is permitted in the lab
chewing gum
eating
drinking
none of the above
47
What are the two types of crust?
Geological and continental crust
Oceanic and continental crust
Earth and oceanic crust
Earth and continental crust
48
The present day is part of the _________________________Era.
Mesozoic
Paleozoic
Cenozoic
49
Radioactive dating enables geologists to determine ____.
the age of the atoms in a rock
the relative ages of rocks
the half-life of a fossil organism
the absolute ages of rocks
50
The earliest life forms were ____.
single-celled organisms
fossils
dinosaurs
vertebrates
51
What is the correct order (starting from the surface) of Earth’s layers?
cCrust, mantle, outer core, inner core
Outer core, inner core, crust, mantle
Crust, outer core, inner core, mantle
Mantle, outer core, inner core, crust
52
Plant leaves may form a fossil called a(an) _________________________a thin layer of carbon on rock.
Mold
Carbon Film
Petrified
Cast
53
What type of boundary is this?
Divergent
Transfom
Convergent
54
A type of organism that no longer exists on Earth is said to be ____.
Petrified
Sedimentary
Fossilized
Extinct
55
Is this fossil a cast or a mold fossil?
cast
mold
56
A solid copy of the shape of an organism is a ___________ fossil.
Cast
Mold
Petrified
Trace
57
The rock layers at the bottom are the ___________
Youngest
Freshest
Oldest
Newest
58
Which of the following is NOT a natural resource?
A rock
Cotton Fabric
A grasshopper
Grass
59
At which type of plate boundary can new crust form?
Convergent
Transform
Divergent
60
On the geologic time scale, the ____________Era is divided into the Triassic, Jurassic and Cretaceous periods.
Cenozoic
Paleozoic
Mesozoic
61
If a fire erupts, immediately...
open the windows
notify the teacher
throw water on the fire
run for the fire extinguisher
62
Approved eye protection devices (such as goggles) are worn in the laboratory
to improve your vision
to avoid eye strain
anytime heat, chemicals, or glassware are used
only if you don't have corrective lenses
63
The first vertebrates were ____.
reptiles
.jawless fishes
amphibians
lungfishes
64
How can we use natural resources?
All of the above
We can use natural resources for food
We can use natural resources to construct houses and buildings
We can use energy from natural resources to generate electricity
65
What type of boundary is constructive?
Convergent Boundary
Divergent Boundary
Transform Boundary
66
The geologic time scale is a record of ____.
the thickness of sedimentary rock layers
the life forms and geologic events in Earth’s history
the rate of fossil formation
the time since the evolution of dinosaurs
67
The Paleozoic, Mesozoic, and Cenozoic are divisions in the geologic time scale called ____.
Centuries
Layers
Periods
Eras
68
A(n) _________ fossil forms when dissolved minerals replace the remains of an organism and then harden to form rock.
Trace
Cast
Mold
Petrified
69
A(n) _________________ is a gap in the geologic record where some rock layers have been lost because of erosion.
Unconformity
Fault
Index
70
Fossils usually occur in _________________________rock.
igneous
every
sedimentary
metamorphic
71
Many scientists hypothesize that the dinosaurs became extinct because __________.
competition with mammals led to the extinction
an asteroid hit earth
formation of Pangaea caused climate change that led to the dinosaurs dying
diseases wiped out plant-eating dinosaurs, leaving no food for carnivores
72
In site 1 what layer is the oldest
B
D
F
A
73
Radioactive decay occurs when atoms of an unstable element ____.
break down to form atoms of another element
join with atoms of another element
are exposed to chemical weathering
become part of a fossil
74
The relative age of a rock is........
the number of years since the rock formed
its age based on how much carbon-14 the rock contains
its age compared to the ages of other rocks
less than the age of the fossils the rock contains
