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Ohio Science 8th Grade EOY Review 2015 Flashcards | StudBud
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Ohio Science 8th Grade EOY Review 2015
Ohio Science 8th Grade EOY Review 2015
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1
Which statement best describes an index fossil?
fossil of an animal captured in ice
fossil of an insect captured in amber
fossil formed in soft sediment by the movement of an animal
fossil used to establish the absolute age of a rock layer
2
Which layer is older?
F
A
D
3
Which of the following happened in Precambrian time?
The first mammals appeared.
A mass extinction wiped out most dinosaurs.
Life on Earth began to move from water to land.
Life began to evolve on Earth
4
What process does a multi-cellular organism use to replace its damaged body cells?
Mitosis
Replication
Transcription
Meiosis
5
Which is a likely reason why a species would become extinct after a major environmental change?
to few of species born with a trait needed to survive
environmental changes mean fewer predators are around
environment change opens new resources with less competition
more homes for the species in the changed environment
6
What are tectonic plates?
large, slowly moving pieces of Earth’s asthenosphere
large, slowly moving pieces of Earth’s mesosphere
large, slowly moving pieces of Earth’s lithosphere
large, slowly moving pieces of Earth’s outer core
7
How is the formation of the solar system similar to the differentiation of Earth into layers?
both processes, the densest materials moved to the center.
both processes, densest materials were evenly distributed
both processes, the densest materials formed a middle layer
both processes, the densest materials moved to the outside
8
Mountain ranges become lower and more rounded over time. What is responsible for this change?
deposition
movement of continents
weathering and erosion
collisions between continental plates
9
Which of these correctly lists the four essential parts of natural selection?
living space, adaptation, selection, and hunting
selection, extinction, underproduction, and competition
asexual reproduction genetic variation selection ,adaptation
overproduction, genetic variation, selection, and adaptation
10
Which of the following is not considered evidence for evolution?
similar genetic information in different species
similarity among organisms that are members of same species
similar patterns of development in different species
fossils of organisms with bodies similar to modern organisms
11
Which is an example of the conversion of kinetic energy into gravitational potential energy?
a person walking up a hill
a person skiing down a hill
a car racing around an oval track
a person parachuting out of an airplane
12
Which diagram has the greatest net force?
c
d
b
a
13
During 2003, the number of earthquakes occurring were higher than usual. Where were the most?
within the continental landmasses
along the edges of the Atlantic Ocean
within the ocean basins
along the edges of the Pacific Ocean
14
Which trait most suggests that the mammoth was adapted to live in a cold climate?
its long, flexible trunk
its sharp, curved tusks
its thick, furry coat
its broad, powerful body
15
An atom loses an electron. What will happen when it approaches a positively-charged ion?
The ions will attract each other.
The ions will repel each other.
The ions will neither attract nor repel each other.
The ions will cancel each other out.
16
Which labeled point on this map has the highest elevation?
A
B
X
Y
17
An image of a magnetic field is shown. Where is the magnetic force the strongest?
A
C
B
D
18
How does a sex cell differ from a body cell?
sex cell contains homologous chromosomes
sex cell has 1/2 amount of genetic material as a body cell
sex cell dœs not contain chromosomes.
sex cell has the same number of chromosomes as a body cell
19
Which of the following provides structural evidence for evolution?
genetic analysis of two animals show similar DNA sequences
embryos of two animals look similar at similar stages
Fossil of Mesozoic animal similar to a modern animal.
comparison of bones in legs of a human, a dog, and a bat
20
Sinkholes result from the erosion of bedrock. What can you conclude about the rock underneath?
It is very hard and dense.
It dissolves easily in water.
It is mostly gravel and sand.
It formed during a volcanic eruption.
21
Which statement correctly describes groundwater?
water on Earth’s surface
water below Earth’s surface
any form of liquid water
water that is not moving
22
What color is the youngest seafloor?
yellow
red
green
blue
23
Which was the most recent event?
Erosion at E
Fault at K
Intrusion at M
Deposition at B
24
Which of the following does not use an electromagnet?
Hand held compass
Doorbell
electric motor
galvanometer
25
Which feature is shown in the middle of the satellite picture?
Glacier
Mountains
Beach
River
26
Which process produces the plants' sex cells & which type of reproduction.
meiosis; asexual reproduction
mitosis; sexual reproduction
mitosis; asexual reproduction
meiosis; sexual reproduction
27
Landslides, and rockfalls are examples of erosion and deposition by which agent of erosion?
Wind
Oxidation
Gravity
Solar energy
28
Which of the following is an electrical insulator?
Rubber
Copper
Aluminium
Iron
29
Which process below formed the arch shown in the figure?
volcanism
deposition
erosion
precipitation
30
This process generated heat during Earth’s formation and is still a source of heat inside Earth
the greenhouse effect
radioactive decay
seismic waves
solar radiation
