WGU D678|D671 – Elementary Science Curriculum Objective Assessment | OA
V1 and V2 | Questions and Answers – 2026 Update | 100% Correct.
Questions 1–10: Foundations of Science Education & NGSS
1. A teacher designs a lesson where students observe plant growth, develop a model explaining
the process, and revise their explanation after collecting data. Which NGSS dimension is
primarily emphasized?
A. Disciplinary Core Ideas only
B. Science and Engineering Practices
C. Crosscutting Concepts only
D. Memorization of scientific vocabulary
Answer: B
2. The three dimensions of NGSS include:
A. Content, worksheets, and assessment
B. Science practices, crosscutting concepts, and disciplinary core ideas
C. Vocabulary, experiments, and quizzes
D. STEM, literacy, and math
Answer: B
3. Which activity best supports student sense-making?
A. Copying definitions
B. Watching a science video silently
C. Constructing explanations based on evidence
D. Completing a multiple-choice worksheet
Answer: C
4. A teacher wants students to understand cause-and-effect relationships in ecosystems. Which
crosscutting concept is being emphasized?
A. Systems and system models
B. Cause and effect
C. Structure and function
D. Stability and change
Answer: B
,5. Inquiry-based instruction requires students to:
A. Follow a strict procedure without deviation
B. Engage in questioning, investigating, and analyzing data
C. Memorize scientific laws
D. Listen to lectures daily
Answer: B
6. A phenomenon-based lesson begins with:
A. Vocabulary definitions
B. A textbook chapter
C. A real-world observable event
D. A formal assessment
Answer: C
7. The primary goal of elementary science instruction is to:
A. Prepare students for standardized testing only
B. Develop scientific literacy and reasoning
C. Teach isolated facts
D. Eliminate student misconceptions by lecture
Answer: B
8. Which assessment aligns best with NGSS?
A. Recall-based test
B. Multiple-choice vocabulary quiz
C. Performance task requiring explanation of a phenomenon
D. True/false worksheet
Answer: C
9. Students build a model of the water cycle. This supports which practice?
A. Asking questions
B. Developing and using models
,C. Obtaining information
D. Planning investigations
Answer: B
10. Which classroom strategy best promotes equitable participation?
A. Calling on volunteers only
B. Random participation structures
C. Teacher-led lecture
D. Silent independent reading
Answer: B
Life Science (Questions 11–25)
11. Photosynthesis primarily occurs in the:
A. Roots
B. Stem
C. Leaves
D. Soil
Answer: C
12. Energy in most ecosystems originates from:
A. Soil nutrients
B. Decomposers
C. The Sun
D. Water
Answer: C
13. Which is a producer?
A. Hawk
B. Mushroom
C. Grass
D. Snake
, Answer: C
14. Decomposers are important because they:
A. Produce sunlight
B. Recycle nutrients
C. Hunt prey
D. Create oxygen
Answer: B
15. In a food chain, arrows represent:
A. Predator movement
B. Energy flow
C. Habitat location
D. Time progression
Answer: B
16. Which structure helps plants transport water?
A. Chloroplast
B. Xylem
C. Stomata
D. Petal
Answer: B
17. Inherited traits are passed through:
A. Experience
B. Genes
C. Practice
D. Climate
Answer: B
18. Natural selection results in:
A. Immediate change
V1 and V2 | Questions and Answers – 2026 Update | 100% Correct.
Questions 1–10: Foundations of Science Education & NGSS
1. A teacher designs a lesson where students observe plant growth, develop a model explaining
the process, and revise their explanation after collecting data. Which NGSS dimension is
primarily emphasized?
A. Disciplinary Core Ideas only
B. Science and Engineering Practices
C. Crosscutting Concepts only
D. Memorization of scientific vocabulary
Answer: B
2. The three dimensions of NGSS include:
A. Content, worksheets, and assessment
B. Science practices, crosscutting concepts, and disciplinary core ideas
C. Vocabulary, experiments, and quizzes
D. STEM, literacy, and math
Answer: B
3. Which activity best supports student sense-making?
A. Copying definitions
B. Watching a science video silently
C. Constructing explanations based on evidence
D. Completing a multiple-choice worksheet
Answer: C
4. A teacher wants students to understand cause-and-effect relationships in ecosystems. Which
crosscutting concept is being emphasized?
A. Systems and system models
B. Cause and effect
C. Structure and function
D. Stability and change
Answer: B
,5. Inquiry-based instruction requires students to:
A. Follow a strict procedure without deviation
B. Engage in questioning, investigating, and analyzing data
C. Memorize scientific laws
D. Listen to lectures daily
Answer: B
6. A phenomenon-based lesson begins with:
A. Vocabulary definitions
B. A textbook chapter
C. A real-world observable event
D. A formal assessment
Answer: C
7. The primary goal of elementary science instruction is to:
A. Prepare students for standardized testing only
B. Develop scientific literacy and reasoning
C. Teach isolated facts
D. Eliminate student misconceptions by lecture
Answer: B
8. Which assessment aligns best with NGSS?
A. Recall-based test
B. Multiple-choice vocabulary quiz
C. Performance task requiring explanation of a phenomenon
D. True/false worksheet
Answer: C
9. Students build a model of the water cycle. This supports which practice?
A. Asking questions
B. Developing and using models
,C. Obtaining information
D. Planning investigations
Answer: B
10. Which classroom strategy best promotes equitable participation?
A. Calling on volunteers only
B. Random participation structures
C. Teacher-led lecture
D. Silent independent reading
Answer: B
Life Science (Questions 11–25)
11. Photosynthesis primarily occurs in the:
A. Roots
B. Stem
C. Leaves
D. Soil
Answer: C
12. Energy in most ecosystems originates from:
A. Soil nutrients
B. Decomposers
C. The Sun
D. Water
Answer: C
13. Which is a producer?
A. Hawk
B. Mushroom
C. Grass
D. Snake
, Answer: C
14. Decomposers are important because they:
A. Produce sunlight
B. Recycle nutrients
C. Hunt prey
D. Create oxygen
Answer: B
15. In a food chain, arrows represent:
A. Predator movement
B. Energy flow
C. Habitat location
D. Time progression
Answer: B
16. Which structure helps plants transport water?
A. Chloroplast
B. Xylem
C. Stomata
D. Petal
Answer: B
17. Inherited traits are passed through:
A. Experience
B. Genes
C. Practice
D. Climate
Answer: B
18. Natural selection results in:
A. Immediate change
