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WorksheetsMCAS 8th Grade Science Review (2016)
Total questions: 19
Worksheet time: 36mins
The diagram below shows the path of
a ball bouncing on the ground. Four
locations in the path are identified with
numbers.
At which location does the ball have the
greatest amount of kinetic energy?
location 1
location 2
location 3
location 4
A company is creating an advertisement for its custom-made guitars. Which of the following statements should be in the advertisement to best emphasize the company’s custom production processes?
Our guitars are made using
hand tools.
We make our guitars to your
specifications.
We produce and sell thousands of
guitars each year.
Our guitars are the best quality your
money can buy.
A substance with a mass of 10 g is heated to produce two new substances. The mass of the first new substance is 9.3 g and the mass of the second new substance is 0.7 g. Which of the following is best demonstrated by this example?
heat transfer
physical change
law of conservation of mass
law of conservation of energy
The map below shows the locations of
two cities. City Y is near the coast, and
city Z is near the middle of a continent.
The cities have the same elevation.
Based on the map, which of the following statements describes how the climates of the two cities are most likely different?
City Y receives less rain
than city Z.
City Y has colder winters
than city Z.
City Y has cooler summers
than city Z
City Y receives more sunlight
than city Z.
An engineer constructs a prototype from wood. Which of the following is the best tool for the engineer to use to make the prototype’s surface smooth?
band saw
chisel
drill
sandpaper
The diagrams below represent different ways heat is transferred. The arrows in the diagrams show the direction of heat transfer.
Which table shows the primary way heat is transferred in each diagram?
Many natural rock formations change color over time. In Utah, for example, iron oxidized and formed red, orange, and yellow rock.
Which of the following is the cause of this change?
chemical weathering
mechanical weathering
water erosion
wind erosion
The picture below shows a television satellite dish
The satellite dish is an example of which of the following components of a television communications system?
decoder
encoder
receiver
transmitter
Which of the following is a cause of the ocean levels periodically rising and then falling?
the slight tilt of the Moon
the force of gravity from the Moon
the convection within Earth’s mantle
the revolution of Earth around the Sun
A crop of corn plants is genetically modified so that the plants produce a natural pesticide. People are concerned that these corn plants might transfer modified genetic material to other plants.
Which of the following is the best way to further modify the plants to prevent them from transferring their genetic materials to other plants?
changing the plants so they do not
make pollen
changing the plants so they do not
harm insects
changing the plants so they cannot
produce nutrients
changing the plants so they cannot
be easily identified
Wolves kill many elk every year and often attack old, sick, and injured members of a herd. Which of the following best describes the role of the wolves in the wolf-elk relationship?
competitor
host
parasite
predator
Earth’s core is primarily composed of which of the following materials?
basalt
iron
magma
quartz
The following diagram illustrates the appearance of the Moon from Earth.
Which of the following arrangements of the Sun, the Moon, and Earth will cause the Moon to appear as it does above?
A college campus has so few parking spaces that cars are often lined up waiting to park during class hours.
Which of the following describes how the college could best solve the need for more parking spaces using the universal systems model?
The college could build an additional
parking lot, gather parking data, and
then receive input from community
meetings.
The college could limit access to
parking lots during busy hours, hire
security officers to help restrict
parking, and then gather parking data.
The college could gather parking
data, receive input from community
meetings, build an additional parking
lot, and then gather more parking data.
The college could hire security
officers to help restrict parking,
gather parking data, receive input
from community meetings, and then
gather more data.
Which of the following diagrams best represents a mixture?
Which of the following correctly orders part of a fish’s respiratory system from the least complex to most complex?
The diagrams below show a section of a bridge before and after more beams were added.
What is the main reason more beams were added to the bridge?
to reduce shear forces
to increase tension forces
to spread tension and compression
forces over a wider area
to create torsion forces in the vertical
and diagonal directions
The diagram below shows an energy pyramid for a lake ecosystem.
Which of the following best describes the role of the perch in this energy pyramid?
producer
decomposer
primary consumer
secondary consumer
Students measured the water depth at several locations across the channel of a river. They plan to show the data they collected to their class.
Which of the following is the most appropriate representation to show the river’s depth across the channel?
