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Earth Science PSSA Practice
Test Description: Review questions for PSSA
Instructions: Answer all questions to get your test result.
1) Which question about the Allegheny River can BEST be answered through scientific inquiry?
A
How many species of fish are present in the river?
B
How much money should be spent to manage this river?
C
Will fishing be popular on this river in five years?
D
Will this river be a fun place to visit?
2) Which statement explains a long-term health effect of vaccinating people for a disease like measles or malaria?
A
Vaccinated individuals would become carriers of the disease.
B
The disease would be completely eliminated.
C
Body cells would mutate to produce a new disease strain.
D
The risk of contracting the disease would be reduced.
3) Which of the following describes one way scientists have used seismographs?
A
to help determine the composition of Earth's interior.
B
to view distant stars and planets.
C
to help record atmospheric temperature changes.
D
to measure the mass of objects.
4) Which statement BEST describes a dominant gene?
A
A gene that is masked by a recessive gene.
B
A gene that produces a desireable trait.
C
A gene that produces mutations.
D
A gene that masks a recessive gene.
5) Which statement describes how recycling aluminum cans positively affects the environment?
A
recycling produces air pollution.
B
recycling uses energy
C
recycling makes solid waste.
D
recycling conserves mineral resources
6) Which energy source can be described as having the GREATEST impact on Earth's living environments?
A
the Sun
B
geothermal
C
moving water
D
moving air
7) Which type of moving water provides the BEST environment for organisms that decompose dead organic matter?
A
a very shallow river with cold clear water and a sandy bottom.
B
a rapid moving stream wtih a narrow, steep channel.
C
a slow-moving river with a wide, open channel.
D
a steep mountiain stream that flows when snow melts in the spring.
8) Which statement describes two factors that have the GREATEST influence on tides?
A
Earth rotates on it's axis once each year, and the gravity of the Moon causes the oceans to bulge.
B
Earth revolves around the Sun once each day, and the gravity of the Sun causes the oceans to bulge.
C
the Earth revolves around the Sun once each year, and the gravity of Earth causes the oceans to bulge.
D
Earth rotates on it's axis once each day, the gravity of the Moon causes the oceans to bulge.
9) Which planet has the GREATEST role in changing the direction of a comets path?
A
Saturn, because of its ring structure.
B
Earth, because of it's atmosphere of Nitrogen and Carbon Dioxide.
C
Mars, because of it's position near the astroid belt.
D
Jupiter, because of its strong gravitational force.
10) What does a barometer do? (think about weather)
A
it measures pressure changes.
B
it measures wind speed.
C
it measures temperature changes.
D
it measures cloud precipitation.
11) Which physical property (phase change) causes clouds to form from water vapor in the air?
A
condensation
B
sublimation
C
distillation
D
evaporation
12) To say the Earth spins on its axis, we use the word _____________________.
A
revolve
B
rotate
13) To explain how the Moon travels in a orbital path around the Earth, we use the word _________________.
A
rotate
B
revolve
*select an answer for all questions
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