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2021 (v202) Grade 8 Intermediate-Level Science Test Questions 31-45
Test Description: Use your knowledge of Science to answer all questions. Good Luck.
Instructions: Answer all questions to get your test result.
Helpful Hint
The darkly shaded areas of the map represent regions with a high potential for earthquakes to occur. Letters A through D represent locations on Earth.
1) Scientists infer that the major cause of most earthquakes is the movement of
A
continents due to increased greenhouse gases entering Earth’s atmosphere
B
lithospheric plates due to convection cells in Earth’s mantle
C
shorelines due to faulting of rock layers on Earth’s crust
D
glacial ice due to unequal heating of Earth’s surface
Helpful Hint
The darkly shaded areas of the map represent regions with a high potential for earthquakes to occur. Letters A through D represent locations on Earth.
2) Which other natural events would produce a similar pattern of shading if their occurrences were plotted on this map?
A
glaciers
B
volcanic eruptions
C
ice storms
D
hurricanes
Helpful Hint
Points A and B represent locations on Earth’s surface. Some latitude and longitude lines are shown.
3) What is the latitude and longitude of point A?
A
90° N 30° W
B
30° N 90° W
C
90° N 30° E
D
30° N 90° E
Helpful Hint
Points A and B represent locations on Earth’s surface. Some latitude and longitude lines are shown.
4) If the time at point A is 2:00 p.m., then the time at point B is
A
before 2:00 p.m.
B
after 2:00 p.m.
C
2:00 p.m.
5) Under which set of conditions would the greatest additional amount of sugar dissolve in 100 grams of water?
A
low water temperature and a large amount of sugar already dissolved in the water
B
high water temperature and a small amount of sugar already dissolved in the water
C
low water temperature and a small amount of sugar already dissolved in the water
D
high water temperature and a large amount of sugar already dissolved in the water
6) The basic difference between infrared light, visible light, and ultraviolet light is their
A
electric charge
B
wavelength
C
traveling speed
D
temperature
Helpful Hint
The diagram represents equal masses of the same substance in three phases.
7) Compared to the shapes and volumes of the gas and liquid, the solid
A
has a definite shape and no definite volume
B
takes the shape of its container and has a definite volume
C
takes the shape of its container and has no definite volume
D
has a definite shape and a definite volume
Helpful Hint
The diagram represents equal masses of the same substance in three phases.
8) A comparison of the three phases shows that in the sample of the liquid, the atoms have a
A
weaker force of attraction than the solid and the gas
B
weaker force of attraction than the gas, only
C
greater force of attraction than the solid and the gas
D
greater force of attraction than the gas, only
Helpful Hint
The diagram below represents a roller coaster at two positions on the roller coaster track.
9) Compared to the potential energy of the roller coaster at the top of hill 1, the potential energy of the roller coaster at the top of hill 2 is
A
less because the roller coaster is at a lower elevation
B
greater because the roller coaster is on a more gentle slope
C
less because the roller coaster is on a more gentle slope
D
greater because the roller coaster is at a lower elevation
Helpful Hint
The diagram below represents a simple machine, labeled A, that is being used to move a barrel up the stairs.
10) Which simple machine is represented by letter A in the diagram?
A
inclined plane
B
pulley
C
wheel and axle
D
lever
11) Which force causes a satellite to remain in orbit?
A
gravity
B
magnetism
C
friction
D
electricity
Helpful Hint
The diagram represents a closed electrical circuit with a switch and two lightbulbs.
12) In this circuit, one function of the switch is to
A
produce solar energy
B
transform electrical energy into light energy
C
complete the circuit so light is produced
D
store electrical energy
Helpful Hint
The diagram represents a closed electrical circuit with a switch and two lightbulbs.
13) Which form of energy is stored in the battery?
A
light
B
chemical
C
mechanical
D
nuclear
Helpful Hint
The diagram below represents a triple-beam balance with a rock on it.
14) A student fi nds the mass of the rock to be 55.0 grams. The student is making
A
a hypothesis
B
a measurement
C
an explanation
D
an inference
Helpful Hint
The weather map below shows the location of Hurricane Irene S on August 24, 2011, and its predicted path of travel over the next fi ve days. The predictions for the maximum wind speed in miles per hour (mph) and category (CAT) classifi cation of the hurricane for each date are shown. The greater the category, the stronger the hurricane.
15) What was predicted to happen to this hurricane between August 25 and August 29?
A
The wind speed would decrease and the hurricane would become weaker.
B
The wind speed would decrease and the hurricane would become stronger.
C
The wind speed would increase and the hurricane would become stronger.
D
The wind speed would increase and the hurricane would become weaker.
*select an answer for all questions
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