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'17-'18 Eighth Grade State Science Review

Total questions: 83

Worksheet time: 5hrs 29mins

Name
Class
Date
1.

A new Hawaiian Island is being formed at the X. Five dates are listed in the graphic of when the Hawaiian Island formed. What is the date of Maui being formed?

a)

A,

b)

B

c)

C

d)

D

2.

A new Hawaiian Island is being formed at the X. Five dates are listed below of when the Hawaiian Island formed. What is the date of Molokai being formed?

a)

A,

b)

B,

c)

C

d)

D

3.

A new Hawaiian Island is being formed at the X. Five dates are listed below of when the Hawaiian Island formed. What island was formed first?

a)

Oahu

b)

Molokai

c)

Kauai

d)

Hawaii

4.

A new Hawaiian Island is being formed at the X. Five dates are listed below of when the Hawaiian Island formed. What island was formed most recently?

a)

Oahu

b)

Molokai

c)

Kauai

d)

Hawaii

5.

Click on 3 cities where earthquake-resistant technology would be most important in building these skyscrapers.

a)

Osaka

b)

Sydney

c)

Perth

d)

Shilong

e)

Wellington

6.

Click on 2 cities where earthquake technology would not be as important.

a)

Osaka

b)

Sydney

c)

Perth

d)

Shilong

e)

Wellington

7.

Which feature does not result from seismic activity?

a)

faults

b)

volcanoes

c)

glacial deposits

d)

folded rock layers

8.

NASA has recently sent several spacecraft, called rovers, to Mars to explore the planet’s surface. One of these rovers has a mass of about 900 kilograms. The mass of Mars is about one-tenth the mass of Earth. How does the weight of the rover on Mars compare to its weight on Earth?

a)

Its weight is zero on Mars because Mars lacks a gravitational field.

b)

Its weight is lower on Mars because the mass of Mars is smaller than Earth’s mass.

c)

Its weight is the same on Mars because its mass remains the same on both planets.

d)

Its weight is higher on Mars because the density of Mars is greater than the density of Earth.

9.

Which statement about seismic waves is accurate?

a)

A. Seismic waves only relate to earthquakes.

b)

B. Seismic waves have uniform motion within Earth’s layers.

c)

C. Seismic waves change speed when density changes in Earth’s layers.

d)

D. Seismic waves determine differences in temperature in Earth’s layers.

10.

Which rock layer belongs in rock layer 1?

a)

a

b)

v

c)

q

d)

z

11.

Which rock layer belongs in rock layer 4?

a)

a

b)

v

c)

q

d)

z

12.

Label the rock layers in order from oldest to youngest.

a)

a, z, q, s

b)

q,z,a,v

c)

v, a, z, q

d)

v, z, a, q

13.

Aphids are small insects that feed on plants and can reproduce sexually and asexually. Which statement describes an advantage of asexual reproduction of aphids?

a)

A. Offspring are more rapidly produced.

b)

B. Diversity is increased in the population.

c)

C. Offspring are genetically different from the parent.

d)

D. Genetic information is passed from both parents to offspring.

14.

Which of the following happened 1st?

a)

Brown beetle population increases

b)

Brown color improves survival.

c)

More brown beetles reproduce

d)

The environment changes.

15.

Which of the following happened 2nd?

a)

Brown beetle population increases

b)

Brown color improves survival.

c)

More brown beetles reproduce

d)

The environment changes.

16.

Which of the following happened 3rd?

a)

Brown beetle population increases

b)

Brown color improves survival.

c)

More brown beetles reproduce

d)

The environment changes.

17.

Which of the following happened last?

a)

Brown beetle population increases

b)

Brown color improves survival.

c)

More brown beetles reproduce

d)

The environment changes.

18.

. The diagrams show two rock units being affected in different ways by tectonic stress. The arrows in each diagram represent the general direction of the stress. Which diagram shows rocks responding to tectonic stress in a way that could lead to the formation of new crust?

a)

A

b)

B

c)

C

d)

D

19.
 What are the two sources of thermal energy in Earth’s interior? 
a)
A. solar heating and gravity
b)
B. combustion and solar heating 
c)
C. gravity and radioactive decay 
d)
 D. radioactive decay and combustion
20.
a)
a
b)
b
c)
c
d)
d
21.
How did the potential energy change when the upper magnet was released?
a)
Magnetic, elastic and gravitational potential energy increased.
b)
 Magnetic, elastic and gravitational potential energy decreased.
c)
Magnetic and elastic potential energy increased, and gravitational potential energy decreased.
d)
 Magnetic and gravitational potential energy decreased, and elastic potential energy increased. 
22.
Which term is an example of force?
a)
energy
b)
mass
c)
weight
d)
work
23.
a)
Stations 1 and 4
b)
Stations 2 and 3
c)
Stations 3 and 4
d)
Stations 1 and 2
24.
Select the a statement that explains why fewer waves were recorded at some stations.
a)
Part of Earth’s interior bent some of the waves.
b)
 Different materials in Earth move some of the waves.
c)
 Some waves are blocked by water on the Earth’s surface.
d)
Weather events near the stations can prevent waves from being recorded.
25.
As magma rises from the mid-ocean ridge, it cools and solidifies. As this magma solidifies, some of the minerals align with Earth’s magnetic field. Every few million years, Earth’s magnetic field reverses. This reversal is recorded in the magma that solidified after leaving the mid-ocean ridge. In the picture, these magnetic reversals are indicated by dark and light bands.
How can scientists tell when the reversals of the magnetic field occurred? 
a)
 by measuring the thickness of the different bands of the oceanic crust
b)
 by measuring the distance between the mid-ocean ridge and the ocean floor band
c)
 by measuring the amounts of minerals that aligned to Earth’s magnetic field in the different bands
d)
 by measuring the strength of Earth’s magnetic field recorded in the solidified magma of the oceanic crust
26.
a)
Box X starts moving, speeding up, and Box Y remains at rest
b)
Box X starts moving at constant speed, and Box Y remains at rest
c)
Box X starts moving at constant speed, and Box Y starts moving, speeding up.
d)
Box X starts moving, speeding up, and Box Y starts moving at a constant speed.
27.
a)
The elastic potential energy of both springs will increase.
b)
The elastic potential energy of both springs will decrease.
c)
The elastic potential energy of the spring in set-up A will decrease and the elastic potential energy of the spring in setup B will increase. 
d)
The elastic potential energy of the spring in set-up A will increase and the elastic potential energy of the spring in setup B will decrease.
28.
a)
a
b)
b
c)
c
d)
d
29.
a)
a
b)
b
c)
c
d)
d
30.
a)
a
b)
b
c)
c
d)
d
31.
a)
a
b)
b
c)
c
d)
d
32.
a)
a
b)
b
c)
c
d)
d
33.
a)
A
b)
B
c)
C
d)
D
34.
A chicken breeder has chickens that are black, white, and speckled.  This is a co dominant trait. The allele for white feathers is FW and black is FB. Determine the genotypes needed to produce the MOST speckled chickens, then determine how many speckled chickens would be speckled.
a)
FBFB X FWFW; 75 %
b)
FWFB X FWFB; 100%
c)
FBFB X FWFW; 100 %
d)
FWFB X FWFB; 75%
35.
Which type of cell reproduction is being described?
A.
*sex cells are produced
* the number of chromosomes are reduced by half.
B.
*Daughter cells are identical to parent cells
*The number of chromosomes remains the same.
a)
a. meiosis; b. mitosis
b)
a. meiosis; b. meiosis
c)
a. mitosis; b. meiosis
d)
a. both; b. both
36.
Which statement best describes number 4 in the diagram?
a)
Movement of less dense material
b)
Cooling of warmer material
c)
Heating of cooler material
d)
Movement of denser material
37.
a)
Force Q is equal to Force S and Force R is equal to Force T.
b)
Force Q is less than  Force S and Force R is equal to Force T.
c)
Force Q is equal to Force S and Force R is greater than Force T.
d)
Force Q is less than to Force S and Force R is greater than Force T.
38.
Where are earthquakes most likely to occur?
a)
In the middle of plates
b)
In the oceans
c)
Along plate boundaries
d)
Anywhere on the Earth
39.
What's a mid-ocean ridge?
a)
An underwater mountain range formed where two plates collide. 
b)
An underwater mountain range formed where two plates slide past each other.
c)
An underwater mountain range formed where two plates subduct.
d)
An underwater mountain range formed where two plates separate.
40.
Suppose you find fossils of dinosaurs on an island but no fossils of bird or mammal fossils found on the continent it broke off from  This information provides evidence of _________________.
a)
global warming
b)
seafloor spreading
c)
mountain building
d)
continental drift
41.
Force is measured in ________.
a)
Joules
b)
Kilograms
c)
Pounds
d)
Newtons
42.
What kind of adaptation would you be most likely to see in these little moles that live underground?
a)
Wings
b)
Fins
c)
An adaptation to keep dirt out of their eyes.
d)
None of the above
43.
Determining the approximate order in which rock layers were deposited is an important part of ______________.
a)
relative age dating
b)
dinosaur period
c)
absolute age dating
d)
carbon dating
44.
What is the profile view to Topographic Map #1? 
a)
A
b)
B
c)
C
d)
D
45.
What is the elevation of point B? (Contour interval is 100m)
a)
800 ft
b)
850 ft
c)
900 ft
d)
1000 ft
46.
What is the elevation at sea level?
a)
0
b)
100m
c)
20m
d)
3000m
47.
What you see, or the physical appearance.
a)
Genotype
b)
Phenotype
c)
Homozygous
d)
Heterozygous
48.
T - tall and t = short
In the punnett square below, what belongs in the missing square
a)
tt
b)
Tt
c)
Bb
d)
TT
49.
AA and Aa always show up as
a)
dominant
b)
recessive
50.
Aa is
a)
homozygous
b)
heterozygous
51.
Each one of the boxes on the Punnett Square represents what probability of an offsprings' genotype?
a)
25%
b)
1%
c)
10%
d)
0%
52.
What is the phenotype of the offspring? (A-Brown hair; a-blond hair) 
a)
50 % Brown Hair and 50% Blond Hair 
b)
25 % Brown Hair and 75% Blond Hair 
c)
75 % Brown Hair and 25% Blond Hair 
d)
0% Brown Hair and 100% Blond Hair 
53.
What kind of wave travels through the earth?
a)
Seismic Wave
b)
Ocean Wave
c)
Light Wave
54.
Earthquakes release these which let us study what the Earth is made out of
a)
Tectonic Plates
b)
Seismic Waves
c)
Plateaus
d)
P Waves
55.
The San Andrea's Fault in California is which type of boundary?
a)
Convergent
b)
Divergent
c)
Subductive Zone
d)
Transform
56.
What causes convection currents to occur in the Mantle?
a)
heat from the crust
b)
heat from the mantle
c)
heat from the core
d)
heat from the sun
57.
How does a convection cell affect the crust material above it?
a)
It doesn't affect the crust material.
b)
It moves the crust material in the opposite direction.
c)
It moves the crust material in the same direction.
d)
I have no idea. 
58.
Why do more dense materials sink?
a)
The molecules in the material are farther apart.
b)
The molecules in the material are closer together.
59.
A large boulder slowly becomes smaller over hundreds of years. How did this rock change size?
a)
People broke it into little pieces.
b)
Animals scratched it.
c)
Wind and rain weathered it.
d)
Plants used up all the nutrients.
60.
The tectonic plates float on the 
a)
lithosphere
b)
lower mantle
c)
outer core
d)
asthenosphere
61.
Supporting Evidence: discovery of Mid-Atlantic Ridge, core rock samples showing older rocks the farther that you get from the mid ocean ridge
a)
Continental Drift
b)
Seafloor Spreading
c)
Plate Tectonics
62.
Name the boundary
a)
convergent boundary
b)
divergent boundary
c)
transform boundary
d)
sergent boundary
63.
Name the boundary
a)
convergent boundary
b)
divergent boundary
c)
transform boundary
d)
sergent boundary
64.
Name the boundary
a)
convergent boundary
b)
divergent boundary
c)
transform boundary
d)
sergent boundary
65.
What geologic feature is most likely to form at a divergent boundary?
a)
delta
b)
rift valley
c)
trench
d)
plateau
66.
What is a magnetic field reversal?
a)
when Earth's magnetic field suddenly disappears for short periods of time
b)
when Earth's magnetic field is flipped so that the positions of magnetic north and magnetic south are interchanged
c)
when Earth's magnetic field suddenly runs east/west instead of south/north
d)
none of these
67.
What geologic process formed the Himalayas? 
a)
two continental plates converging
b)
an earthquake in a subduction zone
c)
a tectonic plate moving over a hot spot
d)
movement at a transform fault boundary
68.
The San Andreas Fault is a crack in the Earth's crust that runs the length of California. What plate boundary feature caused this?
a)
an inactive convergent boundary
b)
an active convergent boundary
c)
an active transform boundary
d)
a volcanic eruption
69.
What type of plate boundary is this?
a)
Plate
b)
Divergent
c)
Convergent
d)
Transform
70.
What type of event will occur at this boundary?
a)
Earthquake
b)
Volcano Eruption
c)
Tornado
d)
Mountain Building
71.
Where would the oldest rock be found if this was a divergent boundary?
a)
L
b)
M
c)
N
d)
O
72.
Fruit fly body cells have 8 chromosomes. After mitosis, you would expect a resulting fruit fly daughter cell to have ...
a)
16 chromosomes.
b)
46 chromosomes.
c)
8 chromosomes.
d)
4 chromosomes.
73.
Structure (a) is a ____.
a)
chromosome
b)
chromatid
c)
centromere
74.
What process, and which type of resulting cells are represented?
a)
mitosis, gametes
b)
mitosis, body cells
c)
meiosis, gametes
d)
meiosis, body cells
75.

What is the benefit of meiosis?

a)

so we can live longer

b)

genetic diversity

c)

identical cells

d)

to have more animals

76.
The faster an object moves, the ________ kinetic energy it has. 
a)
more
b)
less
c)
none of the above
d)
all of the above 
77.
__________ is stored energy. 
a)
Potential
b)
Kinetic
c)
None of the above 
d)
All of the above 
78.
What energy is pulling an arrow back 
a)
kinetic energy
b)
potential energy
c)
energy
79.
At which point is potential energy greatest?
a)
W
b)
X
c)
Y
d)
Z
80.
The force that pulls things toward earth.
a)
Speed
b)
Gravity
81.
You and your dad are moving the couch from one side to another. Your dad pushes with a force of 35 N to the right and you push with a force of 25 N right. What is the net force on the couch?
a)
60 N right
b)
10 N left
c)
60 n right
d)
50 N left
82.
What is the net force?
a)
5000 N right
b)
4000 N right
c)
40 N left
d)
4000 N left
83.
With unbalanced forces, the object will move in the direction of the _______ force.
a)
larger 
b)
smaller 
c)
equal 

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