WGU C165 OA EXAM INTEGRATED PHYSICAL SCIENCES OA ACTUAL
EXAM QUESTION BANK 250 QUESTIONS AND CORRECT DETAILED
ANSWERS 2025/2026|ALREADY GRADED A+||BRAND NEW VERSION!!
Sedimentary rock - ......ANSWER........A type of rock that forms when particles from other
rocks or the remains of plants and animals are pressed and cemented together
Sedimentation - ......ANSWER........the process in which soil particles and decaying organic
matter accumulate in layers on the ground or at the bottom of large bodies of water,
contributing to the formation of sedimentary rock
SI - ......ANSWER........is a scientific method of expressing the magnitudes or quantities of
important natural phenomena. There are seven base units in the system, from which other
units are derived. Universal for comparing data.
Solid - ......ANSWER........A state of matter that has a definite shape and volume
Solar system - ......ANSWER........sun, planets, and all the other objects that revolve around
the sun
Sound waves - ......ANSWER........a longitudinal wave consisting of compressions and
rarefactions, which travels through a medium
Speed - ......ANSWER........The distance an object travels per unit of time
,2 of 30
Star - ......ANSWER........a fixed luminous point in the night sky that is a large, remote
incandescent body like the sun.
Stratosphere - ......ANSWER........2nd layer of atmosphere; extends from 10 to 30 miles up;
location of ozone layer; absorbs 95% of Ultraviolet radiation; temperature increases with
altitude increase.
Sublimation - ......ANSWER........A change directly from the solid to the gaseous state
without becoming liquid
Subscript - ......ANSWER........A number in a chemical formula that tells the number of
atoms in a molecule or the ratio of elements in a compound
Tectonic plates - ......ANSWER........Sections of the Earth's crust that move due to
convection currents.
Theory - ......ANSWER........A hypothesis that has been tested with a significant amount of
data. Explains why something happened.
Thermal energy - ......ANSWER........Heat energy
Thermosphere - ......ANSWER........The uppermost layer of the atmosphere, in which
temperature increases as altitude increases
, 3 of 30
Tornado - ......ANSWER........A rapidly whirling, funnel-shaped cloud that reaches down to
touch Earth's surface.
Trade winds - ......ANSWER........Prevailing winds that blow northeast from 30 degrees
north latitude to the equator and that blow southeast from 30 degrees south latitude to the
equator
Transform boundary - ......ANSWER........The boundary between tectonic plates that are
sliding past each other horizontally. No volcano
Transpiration - ......ANSWER........Evaporation of water from the leaves of a plant
Transverse wave - ......ANSWER........A wave that moves the medium in a direction
perpendicular to the direction in which the wave travels
Troposphere - ......ANSWER........0-17 km above Earth's surface, site of weather,
organisms, contains most atmospheric water vapor. (temperature decreases with
increasing altitude, pressure decreases)
Trough - ......ANSWER........lowest point of a wavelength
Ultraviolet light - ......ANSWER........Electromagnetic radiation of several wavelengths is
used to control microbial growth