Free Printable WorksheetScienceGrade 7Science CurriculumMS-LS1-3

7.19 Homeostasis and Body System Interactions Worksheet

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Worksheet Overview & Skills Covered

Core academic competencies and curriculum alignment

This Grade 7 Science worksheet provides structured practice on 7.19 Homeostasis and Body System Interactions. Students are guided through targeted exercises that build foundational understanding, computational accuracy, and critical thinking skills.

Homeostasis and Body System Interactions - Which explanation best shows how two body systems interact to maintain homeostasis in a scenario? (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 7

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 7.19 Homeostasis and Body System Interactions skill assessments:

Problem 1Difficulty: Mastery

A person in extreme heat stops sweating after nerve damage, even though the heart is still beating fast and blood is moving. Which explanation best shows why homeostasis now fails?

AWithout normal nervous signals to the integumentary system, a major cooling response is missing and body temperature can keep rising.

BThe circulatory system alone can control body temperature, so homeostasis should still succeed.

CThe endocrine and urinary systems have stopped making oxygen for the blood.

DWithout digestive signals to the skeleton, the heart cannot move heat away from the skin.

Solution & Explanation:Fast blood flow alone is not enough. If sweating cannot be activated, a major part of the body's cooling system is missing.

Problem 2Difficulty: Mastery

Use the graph comparing two runners. Runner A wears a light shirt; Runner B wears a heavy jacket. Both sweat, but Runner B's core temperature rises more and stays elevated longer. Which explanation best fits the graph?

AThe digestive and urinary systems explain the difference because jackets change how the stomach makes urine.

BThe skeletal and endocrine systems explain the difference because bone temperature controls sweating.

CThe integumentary and circulatory systems responded in both runners, but Runner B released heat less effectively because the jacket slowed heat loss from the skin.

DThe respiratory system failed only in Runner B because jackets block oxygen from reaching the lungs.

Solution & Explanation:Both runners can sweat and change blood flow, but clothing can affect how easily heat escapes from the skin to the environment.

Problem 3Difficulty: Mastery

Which description is the best model of a negative feedback response that maintains body temperature?

ABody temperature falls, the digestive system stores the change forever, and no response stops it.

BBody temperature stays exactly the same because the body never changes.

CBody temperature rises, sweat glands make the body even hotter, and the response keeps increasing.

DBody temperature rises, the nervous system signals the integumentary system to increase sweating, and the cooling response slows as temperature returns toward normal.

Solution & Explanation:Negative feedback reduces the original change. A nervous system signal to sweat glands in the integumentary system is one way the body cools itself.

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Frequently Asked Questions

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QWhat grade level and standards does this worksheet align with?

This worksheet is designed specifically for Grade 7 Science students. It aligns with educational standard MS-LS1-3 (Primary standard selected for prompt fields in this prompt cell: NGSS MS-LS1-3. Skill statement in this prompt cell: Which explanation best shows how two body systems interact to maintain homeostasis in a scenario? Associated standards listed with this skill in this prompt cell: NGSS MS-LS1-3. Use this prompt-provided wording as the supporting standard description for this workflow.).