WGU C165 UNIT 5: EARTH &
SKY EXAM WITH CORRECT
ANSWERS 2025
Newton's Law of Universal Gravitation ( Correct answers ) The law that
says every
object in the universe attracts every other object, and that the force is
affected by
mass and distance: the greater the mass of an object, the greater the
attraction; the
Nebula ( Correct answers ) a cloud of gas and dust
farther apart the objects, the weaker the
in space
attraction.
Nuclear Fusion ( Correct answers ) The process by which two or more
smalltonuclei
fuse make a bigger
nucleus
Star ( Correct answers ) A ball of hot gas, primarily hydrogen and
helium, thatnuclear
undergoes
fusion.
Galaxy ( Correct answers ) a system of millions or billions of stars,
together
and dust,with
heldgas
together by gravitational
attraction.
Milky Way Galaxy ( Correct answers ) the galaxy containing our
solar system
Orbit ( Correct answers ) The path of an object as it revolves around
another object in
spac
e
Solar System ( Correct answers ) sun, planets, and all the other objects
that revolve
around the
sun
Planets ( Correct answers ) a celestial body moving in an elliptical orbit
around a star.
Asteroids ( Correct answers ) a small rocky body orbiting
the sun
Inner Planets ( Correct answers ) the planets closest to the Sun:
Mercury,
Earth, andVenus,
Mars
outer planets ( Correct answers ) Jupiter, Saturn, Uranus, & Neptune.
Called Gas
Giants
.
Moons ( Correct answers ) Smaller objects that orbit
a planet
ALREADY
GRADED A+
, Comets ( Correct answers ) a celestial object consisting of a nucleus of
ice and
and, when dust
near the sun, a "tail" of gas and dust particles pointing away
from the sun.
Axis of Rotation ( Correct answers ) an imaginary line about which a
turning
such as body
earth
rotates
Earth's Tilt ( Correct
answers )
Crust ( Correct answers ) Earth's outermost
layer.
Mantle ( Correct answers ) The layer of hot, solid material between
Earth's crust and
core
.
Outer Core ( Correct answers ) A layer of molten iron and nickel that
surrounds
inner core the
of
Earth
Inner Core ( Correct answers ) A dense sphere of solid iron and nickel at
the center of
Eart
h
Physical weathering ( Correct answers ) the mechanical breakdown of
rocks and
mineral
s
Chemical Weathering ( Correct answers ) The process that breaks down
rock through
chemical
changes
Erosion ( Correct answers ) The process by which wind, water, ice,
or gravity soil and sediment from one location to
transports
another
Deposition ( Correct answers ) Process in which sediment is laid
down in new
location
s.
Wind Erosion ( Correct answers ) when the wind picks up dirt and dust
and moves
from one place
it to
another
Sand Dune ( Correct answers ) A hill of sand, made and
shaped by wind
River Meander ( Correct answers ) large bend in the river, formed in the
middlecourses,
lower and have both shallow and steep
sections
River Valley ( Correct
answers )
Delta ( Correct answers ) A landform made of sediment that is
deposited
river flows where
into ana ocean or
lake
ALREADY
GRADED A+
SKY EXAM WITH CORRECT
ANSWERS 2025
Newton's Law of Universal Gravitation ( Correct answers ) The law that
says every
object in the universe attracts every other object, and that the force is
affected by
mass and distance: the greater the mass of an object, the greater the
attraction; the
Nebula ( Correct answers ) a cloud of gas and dust
farther apart the objects, the weaker the
in space
attraction.
Nuclear Fusion ( Correct answers ) The process by which two or more
smalltonuclei
fuse make a bigger
nucleus
Star ( Correct answers ) A ball of hot gas, primarily hydrogen and
helium, thatnuclear
undergoes
fusion.
Galaxy ( Correct answers ) a system of millions or billions of stars,
together
and dust,with
heldgas
together by gravitational
attraction.
Milky Way Galaxy ( Correct answers ) the galaxy containing our
solar system
Orbit ( Correct answers ) The path of an object as it revolves around
another object in
spac
e
Solar System ( Correct answers ) sun, planets, and all the other objects
that revolve
around the
sun
Planets ( Correct answers ) a celestial body moving in an elliptical orbit
around a star.
Asteroids ( Correct answers ) a small rocky body orbiting
the sun
Inner Planets ( Correct answers ) the planets closest to the Sun:
Mercury,
Earth, andVenus,
Mars
outer planets ( Correct answers ) Jupiter, Saturn, Uranus, & Neptune.
Called Gas
Giants
.
Moons ( Correct answers ) Smaller objects that orbit
a planet
ALREADY
GRADED A+
, Comets ( Correct answers ) a celestial object consisting of a nucleus of
ice and
and, when dust
near the sun, a "tail" of gas and dust particles pointing away
from the sun.
Axis of Rotation ( Correct answers ) an imaginary line about which a
turning
such as body
earth
rotates
Earth's Tilt ( Correct
answers )
Crust ( Correct answers ) Earth's outermost
layer.
Mantle ( Correct answers ) The layer of hot, solid material between
Earth's crust and
core
.
Outer Core ( Correct answers ) A layer of molten iron and nickel that
surrounds
inner core the
of
Earth
Inner Core ( Correct answers ) A dense sphere of solid iron and nickel at
the center of
Eart
h
Physical weathering ( Correct answers ) the mechanical breakdown of
rocks and
mineral
s
Chemical Weathering ( Correct answers ) The process that breaks down
rock through
chemical
changes
Erosion ( Correct answers ) The process by which wind, water, ice,
or gravity soil and sediment from one location to
transports
another
Deposition ( Correct answers ) Process in which sediment is laid
down in new
location
s.
Wind Erosion ( Correct answers ) when the wind picks up dirt and dust
and moves
from one place
it to
another
Sand Dune ( Correct answers ) A hill of sand, made and
shaped by wind
River Meander ( Correct answers ) large bend in the river, formed in the
middlecourses,
lower and have both shallow and steep
sections
River Valley ( Correct
answers )
Delta ( Correct answers ) A landform made of sediment that is
deposited
river flows where
into ana ocean or
lake
ALREADY
GRADED A+
