Free Printable WorksheetScienceGrade 6Science CurriculumSCI.6.79

6.79 Body System Case Studies Worksheet

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Worksheet Overview & Skills Covered

Core academic competencies and curriculum alignment

This Grade 6 Science worksheet provides structured practice on 6.79 Body System Case Studies. Students are guided through targeted exercises that build foundational understanding, computational accuracy, and critical thinking skills.

Body System Case Studies - Which statement best describes body system case studies? (NGSS MS‑LS1‑3)

Whether you are an educator preparing classroom handouts, a tutor reinforcing weekly topics, or a parent supporting homeschool learning, this printable resource gives students the deliberate practice required to achieve subject fluency and master state standards.

Grade

Grade 6

Subject

Science

Domain

Science Curriculum

Formats

PDF & DOCX

Sample Practice Problems

Preview the types of problems and questions covered in this worksheet

Below are sample questions representative of the exercises included on this worksheet and related 6.79 Body System Case Studies skill assessments:

Problem 1Difficulty: Mastery

Which statement best describes the best overall interpretation of these stages?

AHealing is a single-step process controlled only by the digestive system.

BOnly the respiratory system is involved because oxygen is needed.

COnly the skeletal system is involved because tissue strength comes from bone.

DMultiple systems and levels of organization are involved: clotting (circulatory), defense (immune), and cell division/tissue repair (integumentary) work together over time.

Solution & Explanation:The stages show coordinated roles: blood clotting stops bleeding, immune cells clean and defend, and skin cells divide to rebuild tissue. Healing depends on multiple systems and cellular processes working together.

Problem 2Difficulty: Mastery

Which statement best describes the best-supported explanation?

AThe lungs digest chemicals and turn them into food for the liver.

BThe skin removes chemicals by turning them into bones.

CThe liver and urinary system work together: the liver modifies the chemical into forms that can be eliminated, and the kidneys remove them in urine.

DThe brain stores chemicals permanently so they cannot be removed.

Solution & Explanation:Detoxification often involves the liver changing chemicals into more water-soluble forms. The kidneys then filter these byproducts from the blood and excrete them in urine—showing system cooperation.

Problem 3Difficulty: Mastery

Which statement best describes the strongest conclusion supported by this experiment?

ABreathing rate is controlled mainly by oxygen levels, so CO₂ should not matter.

BBreathing rate increases because high CO₂ triggers sensors that signal the brain to increase ventilation to reduce CO₂ and correct pH.

CBreathing rate increases because high CO₂ improves digestion in the stomach.

DBreathing rate increases because high CO₂ strengthens muscles directly without nerves.

Solution & Explanation:The experiment isolates CO₂ as the changed variable. Increased breathing with higher CO₂ shows the body uses CO₂/pH-sensitive chemoreceptors to regulate ventilation and maintain acid-base balance.

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QWhat grade level and standards does this worksheet align with?

This worksheet is designed specifically for Grade 6 Science students. It aligns with educational standard SCI.6.79 (Grade 6 science practice and review on body system case studies.).