Grade 8 Science CRT Instructional Material #1 - RPDP

Grade 8 Science CRT Instructional Materials #1
24 48
24 49
Metamorphic rock forms when the
structure of pre-existing rock is changed.
What processes can change rock in this
manner?
A Cooling and crystallization
B Compaction and cementation
C Weathering and erosion
D Heat and pressure
If a child is born with a genetic disorder,
but the mother and father do not have the
disorder, then how did the child develop
the disorder?
A The child was exposed to an infectious
agent at birth.
B The child has an allergy to an
environmental agent.
C The disorder is caused by a recessive
trait and both parents are carriers.
D The disorder is caused by a dominant
trait that both parents possess.
2450
At an amusement park, the gate for a
ride is locked and unlocked using a
magnetic latching device. Which
statement best explains why the gate
is unlocked when the ride operator
flips a switch that controls the
latching device? The switch
A turns off an electrical circuit to
demagnetize the latch.
B uses the force of gravity to
demagnetize the latch.
C sends an infrared light beam that
demagnetizes the latch.
D turns on an electrical heating
element that demagnetizes the
latch.
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