WGU D671 Elementary
Science Curriculum
EXAM QUESTIONS AND
VERIFED CORRECT
ANSWERS GRADED A+
[LATEST 2026-2027] 100%
GARANTEED PASS
Surface runoff - CORRECT ANSWER-the movement of water across the land surface, either by
flowing over soil or paved surfaces.
Infiltration - CORRECT ANSWER-when water soaks into the ground.
Plate tectonics - CORRECT ANSWER-the theory that describes how Earth's outer shell is divided
into several plates that glide over the mantle, interacting at their boundaries to produce
earthquakes, volcanic activity, mountain building, and oceanic trench formation.
Geosphere - CORRECT ANSWER-refers to the solid part of the Earth. It encompasses all the
rocks, minerals, and landforms of the Earth's crust, as well as its inner layers like the mantle and
core.
Atmosphere - CORRECT ANSWER-is the layer of gases surrounding the Earth, held in place by
gravity. It's composed of several layers including the troposphere, stratosphere, mesosphere,
thermosphere, and exosphere.
,Hydrosphere - CORRECT ANSWER-encompasses all the water found on, under, and above the
Earth's surface. It includes oceans, rivers, lakes, glaciers, underground water, and vapor in the
atmosphere.
Biosphere - CORRECT ANSWER-consists of all living organisms on Earth, including animals,
plants, fungi, and microorganisms.
Weathering - CORRECT ANSWER-The process of breaking down rocks, soil, and minerals
through contact with the Earth's atmosphere, water, and biological organisms. It can be physical
(mechanical), chemical, or biological.
Erosion - CORRECT ANSWER-The process by which soil, rock, or other surface material is worn
away and transported by natural forces such as wind, water, or ice.
Biogeology - CORRECT ANSWER-The study of the interactions between the Earth's biosphere
and its geological systems, including how living organisms influence and are influenced by the
Earth's physical environment over geological timescales.
Microbes - CORRECT ANSWER-Microorganisms, such as bacteria, viruses, fungi, and protozoa,
that are too small to be seen with the naked eye. They play critical roles in ecosystems,
including nutrient cycling, decomposition, and as pathogens.
Carbon Cycle - CORRECT ANSWER-The series of processes by which carbon atoms circulate
through the Earth's atmosphere, oceans, soil, and living organisms. This cycle includes processes
such as photosynthesis, respiration, decomposition, and the burning of fossil fuels, which
transfer carbon between different reservoirs.
Transform boundaries - CORRECT ANSWER-Plates slide horizontally past one another. The plates
grind against each other along a fault line, with neither creating nor destroying crust. Strike-slip
fault. Strong earthquakes occur when the plates get stuck and then suddenly slip
, Convergent Boundaries - CORRECT ANSWER-Plates collide with each other.
If an oceanic plate collides with a continental plate, the denser oceanic plate is forced
underneath the continental plate in a process called subduction.
If two continental plates collide, neither is subducted, and the crust crumples to form
mountains. Mountains, volcanic arcs, and deep ocean trenches. Strong earthquakes and
volcanic eruptions.
Divergent boundaries - CORRECT ANSWER-Plates pull away from each other.
Magma rises from the mantle to fill the gap, creating new crust as it cools and solidifies. Mid-
ocean ridges and rift valleys. Mild earthquakes and volcanic activity.
Milky Way Galaxy - CORRECT ANSWER-The galaxy that contains our Solar System, characterized
by its spiral shape, composed of billions of stars, planets, and other celestial objects.
Solar System - CORRECT ANSWER-The collection of planets, moons, asteroids, comets, and
other bodies that orbit our Sun, including Earth.
Universe - CORRECT ANSWER-The entirety of space, time, matter, and energy, encompassing all
galaxies, stars, planets, and everything else that exists.
Stars - CORRECT ANSWER-Massive, luminous spheres of plasma held together by gravity,
producing light and heat through nuclear fusion at their cores.
Planet - CORRECT ANSWER-A large celestial body that orbits a star, such as the Sun, and is
massive enough to be rounded by its gravity but not massive enough to cause thermonuclear
fusion.
Moons - CORRECT ANSWER-Natural satellites that orbit planets, varying in size and
composition.
Science Curriculum
EXAM QUESTIONS AND
VERIFED CORRECT
ANSWERS GRADED A+
[LATEST 2026-2027] 100%
GARANTEED PASS
Surface runoff - CORRECT ANSWER-the movement of water across the land surface, either by
flowing over soil or paved surfaces.
Infiltration - CORRECT ANSWER-when water soaks into the ground.
Plate tectonics - CORRECT ANSWER-the theory that describes how Earth's outer shell is divided
into several plates that glide over the mantle, interacting at their boundaries to produce
earthquakes, volcanic activity, mountain building, and oceanic trench formation.
Geosphere - CORRECT ANSWER-refers to the solid part of the Earth. It encompasses all the
rocks, minerals, and landforms of the Earth's crust, as well as its inner layers like the mantle and
core.
Atmosphere - CORRECT ANSWER-is the layer of gases surrounding the Earth, held in place by
gravity. It's composed of several layers including the troposphere, stratosphere, mesosphere,
thermosphere, and exosphere.
,Hydrosphere - CORRECT ANSWER-encompasses all the water found on, under, and above the
Earth's surface. It includes oceans, rivers, lakes, glaciers, underground water, and vapor in the
atmosphere.
Biosphere - CORRECT ANSWER-consists of all living organisms on Earth, including animals,
plants, fungi, and microorganisms.
Weathering - CORRECT ANSWER-The process of breaking down rocks, soil, and minerals
through contact with the Earth's atmosphere, water, and biological organisms. It can be physical
(mechanical), chemical, or biological.
Erosion - CORRECT ANSWER-The process by which soil, rock, or other surface material is worn
away and transported by natural forces such as wind, water, or ice.
Biogeology - CORRECT ANSWER-The study of the interactions between the Earth's biosphere
and its geological systems, including how living organisms influence and are influenced by the
Earth's physical environment over geological timescales.
Microbes - CORRECT ANSWER-Microorganisms, such as bacteria, viruses, fungi, and protozoa,
that are too small to be seen with the naked eye. They play critical roles in ecosystems,
including nutrient cycling, decomposition, and as pathogens.
Carbon Cycle - CORRECT ANSWER-The series of processes by which carbon atoms circulate
through the Earth's atmosphere, oceans, soil, and living organisms. This cycle includes processes
such as photosynthesis, respiration, decomposition, and the burning of fossil fuels, which
transfer carbon between different reservoirs.
Transform boundaries - CORRECT ANSWER-Plates slide horizontally past one another. The plates
grind against each other along a fault line, with neither creating nor destroying crust. Strike-slip
fault. Strong earthquakes occur when the plates get stuck and then suddenly slip
, Convergent Boundaries - CORRECT ANSWER-Plates collide with each other.
If an oceanic plate collides with a continental plate, the denser oceanic plate is forced
underneath the continental plate in a process called subduction.
If two continental plates collide, neither is subducted, and the crust crumples to form
mountains. Mountains, volcanic arcs, and deep ocean trenches. Strong earthquakes and
volcanic eruptions.
Divergent boundaries - CORRECT ANSWER-Plates pull away from each other.
Magma rises from the mantle to fill the gap, creating new crust as it cools and solidifies. Mid-
ocean ridges and rift valleys. Mild earthquakes and volcanic activity.
Milky Way Galaxy - CORRECT ANSWER-The galaxy that contains our Solar System, characterized
by its spiral shape, composed of billions of stars, planets, and other celestial objects.
Solar System - CORRECT ANSWER-The collection of planets, moons, asteroids, comets, and
other bodies that orbit our Sun, including Earth.
Universe - CORRECT ANSWER-The entirety of space, time, matter, and energy, encompassing all
galaxies, stars, planets, and everything else that exists.
Stars - CORRECT ANSWER-Massive, luminous spheres of plasma held together by gravity,
producing light and heat through nuclear fusion at their cores.
Planet - CORRECT ANSWER-A large celestial body that orbits a star, such as the Sun, and is
massive enough to be rounded by its gravity but not massive enough to cause thermonuclear
fusion.
Moons - CORRECT ANSWER-Natural satellites that orbit planets, varying in size and
composition.
