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8th Grade Science State Test Review 2017 Flashcards | StudBud
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8th Grade Science State Test Review 2017
8th Grade Science State Test Review 2017
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Flashcards
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Questions
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Answers
1
Which is a likely reason why a species would become extinct after a major environmental change?
environmental changes mean fewer predators are around
environment change opens new resources with less competition
to few of species born with a trait needed to survive
more homes for the species in the changed environment
2
Which feature is shown in the middle of the satellite picture?
Mountains
Beach
Glacier
River
3
During 2003, the number of earthquakes occurring were higher than usual. Where were the most?
along the edges of the Atlantic Ocean
within the continental landmasses
along the edges of the Pacific Ocean
within the ocean basins
4
Box A has a mass of 10kg & box B has a mass of 20kg. Same force -which will accelerate slower?
Neither will accelerate
Box B with more mass
Box A with less mass
They accelerate the same
5
What are tectonic plates?
large, slowly moving pieces of Earth’s mesosphere
large, slowly moving pieces of Earth’s asthenosphere
large, slowly moving pieces of Earth’s outer core
large, slowly moving pieces of Earth’s lithosphere
6
A chart that shows possible combinations of alleles that can result from a genetic cross?
Pascal Triangle
Data Table
punnett square
Purebred Cross
7
What statement best describes what happens to a fluid when its temperature increases
Nothing
the Earth stops rotating
density decreases
density increases
8
Which process produces the plants' sex cells & which type of reproduction.
meiosis; asexual reproduction
meiosis; sexual reproduction
mitosis; asexual reproduction
mitosis; sexual reproduction
9
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
10
Which layer is older?
D
F
A
11
Which genotype is heterozygous?
tt and TT
TT
Tt
tt
12
A resistance to change in motion is
velocity
gravity
acceleration
interia
13
Landslides, and rockfalls are examples of erosion and deposition by which agent of erosion?
Gravity
Solar energy
Wind
Oxidation
14
Which did NOT provide evidence of continental drift?
Fossils
current plant life
land features
glacial deposits
15
What process does a multi-cellular organism use to replace its damaged body cells?
Meiosis
Transcription
Replication
Mitosis
16
Unbalanced forces result in the net force of zero
true
false
17
The passing on of traits from parents to offspring is called?
heredity
purebred
hand me downs
hybrid
18
Sinkholes result from the erosion of bedrock. What can you conclude about the rock underneath?
It is mostly gravel and sand.
It is very hard and dense.
It formed during a volcanic eruption.
It dissolves easily in water.
19
How does a sex cell differ from a body cell?
sex cell dœs not contain chromosomes.
sex cell contains double chromosomes
sex cell has 1/2 amount of genetic material as a body cell
sex cell has the same number of chromosomes as a body cell
20
How do we know about the interior of the Earth?
All of the above
Scientist study seismic waves
Natural forces bring up rock samples
Scientist study rock samples from drilling or mining
21
Mountain ranges become lower and more rounded over time. What is responsible for this change?
movement of continents
collisions between continental plates
weathering and erosion
deposition
22
Which labeled point on this map has the highest elevation?
Y
B
X
A
23
Which process below formed the arch shown in the figure?
erosion
volcanism
deposition
precipitation
