WGU D671 Elementary Science Curriculum Actual Exam
2026/2027: Complete Exam-Style Questions with
Detailed Rationales | 100% Verified | Pass Guaranteed –
A+ Graded
TABLE OF CONTENTS
Section 1 | Science Content and Core Disciplines | Q1 – Q10
Section 2 | Inquiry-Based Learning and Scientific Practices | Q11 – Q20
Section 3 | Curriculum Design for Elementary Science | Q21 – Q30
Section 4 | Hands-On Investigations and Lab Safety | Q31 – Q40
Section 5 | Assessment of Science Learning and Crosscutting Concepts | Q41 – Q50
Instructions: Choose the single best answer. Pass: 80% in 90 minutes.
══════════════════════════════════════
SECTION 1: SCIENCE CONTENT AND CORE DISCIPLINES Q1 – Q10
══════════════════════════════════════
Question 1 of 50
A fourth-grade teacher is introducing a unit on matter and asks students to describe the
difference between a solid and a liquid using examples from the classroom. A student
states that a solid has a definite shape and volume, while a liquid takes the shape of its
container but has a definite volume.
A. Explain that the student is incorrect because all matter changes shape when force is
applied
B. Affirm the student's description and ask the class to identify other solids and liquids
in the room ✓ CORRECT
C. Correct the student by stating that liquids do not have a definite volume at all
,D. Tell the class that gases are the only state of matter with both definite shape and
volume
Correct Answer: B
Rationale: The student's description accurately reflects the properties of solids and
liquids at the fourth-grade level, and affirming correct ideas builds confidence while
extending learning through peer examples. Option A is incorrect because it
overgeneralizes the behavior of solids under force and would confuse students about
the intrinsic properties of states of matter. In elementary classrooms, teachers often
use the room itself as a text so students can anchor abstract concepts to tangible
objects.
Question 2 of 50
A third-grade class is growing bean plants on the windowsill as part of a life science
unit. After two weeks, the students notice that the plants near the center of the
windowsill are taller and greener than those placed in the corner of the room. The
teacher wants to guide students toward a scientifically accurate conclusion.
A. Tell the students that some plants are simply stronger than others by random chance
B. Suggest that the corner plants need more fertilizer to catch up to the others
C. Conclude that water evaporates faster near the window and therefore the center
plants received more moisture
D. Facilitate a discussion about how light availability differs across the room and affects
photosynthesis ✓ CORRECT
Correct Answer: D
Rationale: The observed variation in plant growth corresponds to light gradient
differences across the classroom, and guiding students to connect light energy to
photosynthesis addresses the core life science concept appropriately. Option B is a
tempting distractor because fertilizer is a common variable students hear about, but
there is no evidence in the scenario that nutrients are limiting growth. Teachers who use
,classroom environments as living laboratories help students see that scientific
explanations emerge from evidence rather than guesswork.
Question 3 of 50
During a fifth-grade earth science lesson, a student asks why the moon appears to
change shape throughout the month. The teacher wants to address the question using
a model that accurately represents the relative positions of the sun, earth, and moon.
A. Use a lamp, a globe, and a small ball to demonstrate how reflected sunlight and
orbital position create lunar phases ✓ CORRECT
B. Show a video animation and tell students that the moon itself physically changes
shape
C. Explain that clouds passing in front of the moon cause the apparent changes in
shape
D. Describe the phases as shadows cast by the earth during the moon's rotation on its
axis
Correct Answer: A
Rationale: A physical model using a light source, earth representation, and moon
representation allows students to manipulate relative positions and observe how
illumination changes with perspective, which builds accurate mental models. Option B
is incorrect because it reinforces the common misconception that the moon itself
changes shape rather than the portion of its illuminated face visible from earth. In
elementary astronomy, kinesthetic modeling is particularly effective because students
can embody the system and see the phenomenon from multiple viewpoints.
Question 4 of 50
A second-grade teacher wants students to understand why ice melts when left on the
counter during snack time. The teacher places an ice cube in a sealed plastic bag and
another on a paper plate, then asks students to predict what will happen after fifteen
minutes.
, A. Predict that the ice in the bag will melt faster because plastic traps heat
B. Predict that both ice cubes will remain frozen because the room is not hot enough
C. Predict that both ice cubes will melt because thermal energy transfers from the
warmer room to the colder ice ✓ CORRECT
D. Predict that the ice on the plate will melt faster because paper absorbs cold
Correct Answer: C
Rationale: Both ice cubes are exposed to thermal energy from the warmer ambient air,
and heat transfer from the environment to the ice will cause phase change regardless of
the container, which addresses the core concept of energy transfer. Option A is a
common student misconception that confuses insulation with heat generation, and it
distracts from the fundamental idea that the room itself is the heat source. Elementary
teachers often use side-by-side comparisons with minimal variables so students can
focus on the central mechanism rather than container effects.
Question 5 of 50
A fifth-grade teacher is introducing the concept of ecosystems by having students
observe a terrarium containing soil, moss, a small snail, and a few drops of water. A
student asks whether the snail is a producer or a consumer.
A. Tell the student that the snail is a producer because it creates its own shell
B. Explain that the snail is a consumer because it eats plants and cannot make its own
food ✓ CORRECT
C. Classify the snail as a decomposer because it lives on the ground
D. State that the snail is neither because it is too small to matter in the ecosystem
Correct Answer: B
Rationale: Snails are heterotrophs that obtain energy by consuming plant material,
which makes them consumers, and this distinction is essential for students to
understand energy flow within an ecosystem. Option A is a common error students
make by associating production with any visible output, but creating a shell is not
2026/2027: Complete Exam-Style Questions with
Detailed Rationales | 100% Verified | Pass Guaranteed –
A+ Graded
TABLE OF CONTENTS
Section 1 | Science Content and Core Disciplines | Q1 – Q10
Section 2 | Inquiry-Based Learning and Scientific Practices | Q11 – Q20
Section 3 | Curriculum Design for Elementary Science | Q21 – Q30
Section 4 | Hands-On Investigations and Lab Safety | Q31 – Q40
Section 5 | Assessment of Science Learning and Crosscutting Concepts | Q41 – Q50
Instructions: Choose the single best answer. Pass: 80% in 90 minutes.
══════════════════════════════════════
SECTION 1: SCIENCE CONTENT AND CORE DISCIPLINES Q1 – Q10
══════════════════════════════════════
Question 1 of 50
A fourth-grade teacher is introducing a unit on matter and asks students to describe the
difference between a solid and a liquid using examples from the classroom. A student
states that a solid has a definite shape and volume, while a liquid takes the shape of its
container but has a definite volume.
A. Explain that the student is incorrect because all matter changes shape when force is
applied
B. Affirm the student's description and ask the class to identify other solids and liquids
in the room ✓ CORRECT
C. Correct the student by stating that liquids do not have a definite volume at all
,D. Tell the class that gases are the only state of matter with both definite shape and
volume
Correct Answer: B
Rationale: The student's description accurately reflects the properties of solids and
liquids at the fourth-grade level, and affirming correct ideas builds confidence while
extending learning through peer examples. Option A is incorrect because it
overgeneralizes the behavior of solids under force and would confuse students about
the intrinsic properties of states of matter. In elementary classrooms, teachers often
use the room itself as a text so students can anchor abstract concepts to tangible
objects.
Question 2 of 50
A third-grade class is growing bean plants on the windowsill as part of a life science
unit. After two weeks, the students notice that the plants near the center of the
windowsill are taller and greener than those placed in the corner of the room. The
teacher wants to guide students toward a scientifically accurate conclusion.
A. Tell the students that some plants are simply stronger than others by random chance
B. Suggest that the corner plants need more fertilizer to catch up to the others
C. Conclude that water evaporates faster near the window and therefore the center
plants received more moisture
D. Facilitate a discussion about how light availability differs across the room and affects
photosynthesis ✓ CORRECT
Correct Answer: D
Rationale: The observed variation in plant growth corresponds to light gradient
differences across the classroom, and guiding students to connect light energy to
photosynthesis addresses the core life science concept appropriately. Option B is a
tempting distractor because fertilizer is a common variable students hear about, but
there is no evidence in the scenario that nutrients are limiting growth. Teachers who use
,classroom environments as living laboratories help students see that scientific
explanations emerge from evidence rather than guesswork.
Question 3 of 50
During a fifth-grade earth science lesson, a student asks why the moon appears to
change shape throughout the month. The teacher wants to address the question using
a model that accurately represents the relative positions of the sun, earth, and moon.
A. Use a lamp, a globe, and a small ball to demonstrate how reflected sunlight and
orbital position create lunar phases ✓ CORRECT
B. Show a video animation and tell students that the moon itself physically changes
shape
C. Explain that clouds passing in front of the moon cause the apparent changes in
shape
D. Describe the phases as shadows cast by the earth during the moon's rotation on its
axis
Correct Answer: A
Rationale: A physical model using a light source, earth representation, and moon
representation allows students to manipulate relative positions and observe how
illumination changes with perspective, which builds accurate mental models. Option B
is incorrect because it reinforces the common misconception that the moon itself
changes shape rather than the portion of its illuminated face visible from earth. In
elementary astronomy, kinesthetic modeling is particularly effective because students
can embody the system and see the phenomenon from multiple viewpoints.
Question 4 of 50
A second-grade teacher wants students to understand why ice melts when left on the
counter during snack time. The teacher places an ice cube in a sealed plastic bag and
another on a paper plate, then asks students to predict what will happen after fifteen
minutes.
, A. Predict that the ice in the bag will melt faster because plastic traps heat
B. Predict that both ice cubes will remain frozen because the room is not hot enough
C. Predict that both ice cubes will melt because thermal energy transfers from the
warmer room to the colder ice ✓ CORRECT
D. Predict that the ice on the plate will melt faster because paper absorbs cold
Correct Answer: C
Rationale: Both ice cubes are exposed to thermal energy from the warmer ambient air,
and heat transfer from the environment to the ice will cause phase change regardless of
the container, which addresses the core concept of energy transfer. Option A is a
common student misconception that confuses insulation with heat generation, and it
distracts from the fundamental idea that the room itself is the heat source. Elementary
teachers often use side-by-side comparisons with minimal variables so students can
focus on the central mechanism rather than container effects.
Question 5 of 50
A fifth-grade teacher is introducing the concept of ecosystems by having students
observe a terrarium containing soil, moss, a small snail, and a few drops of water. A
student asks whether the snail is a producer or a consumer.
A. Tell the student that the snail is a producer because it creates its own shell
B. Explain that the snail is a consumer because it eats plants and cannot make its own
food ✓ CORRECT
C. Classify the snail as a decomposer because it lives on the ground
D. State that the snail is neither because it is too small to matter in the ecosystem
Correct Answer: B
Rationale: Snails are heterotrophs that obtain energy by consuming plant material,
which makes them consumers, and this distinction is essential for students to
understand energy flow within an ecosystem. Option A is a common error students
make by associating production with any visible output, but creating a shell is not
