Free Printable WorksheetScienceGrade 8Science CurriculumMS-LS1-3

8.83 Body Systems and Homeostasis Worksheet

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Worksheet Overview & Skills Covered

Core academic competencies and curriculum alignment

This Grade 8 Science worksheet provides structured practice on 8.83 Body Systems and Homeostasis. Students are guided through targeted exercises that build foundational understanding, computational accuracy, and critical thinking skills.

Body Systems and Homeostasis - Which model best models of how major body systems interact to deliver oxygen and nutrients, remove wastes, and maintain stability? (NGSS MS‑LS1‑3; CCC: Systems/Models; TEKS §112.28 Grade 8; FL NGSSS; VA SOL; MA STE)

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 8

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 8.83 Body Systems and Homeostasis skill assessments:

Problem 1Difficulty: Mastery

Which model most completely explains homeostasis during a normal school day that includes eating lunch, walking up stairs, and going outside into cold wind?

AOnly the digestive system changes because food controls every body function

BDigestive, respiratory, circulatory, urinary, nervous, endocrine, and integumentary systems interact as conditions change so cells keep receiving materials and wastes are removed

COnly the respiratory system matters because oxygen is the body's only need

DEach system works separately, so one model is not possible

Solution & Explanation:Different events during the day create changing needs, and a complete model shows how multiple systems coordinate to keep the internal environment stable.

Problem 2Difficulty: Mastery

A hormone needed to keep blood sugar stable is missing. Which result is most likely after meals?

AThe lungs stop exchanging gases entirely

BBlood sugar stays outside its normal range more often because regulation is disrupted

CThe kidneys no longer remove any wastes

DBody temperature remains fixed at one value forever

Solution & Explanation:Hormones help regulate internal conditions. Without the right hormone signals, blood sugar may remain too high or too low after meals.

Problem 3Difficulty: Mastery

Why is the human body described as a system of interacting subsystems made of groups of cells?

ABecause organs are built from tissues and cells, and those parts depend on one another to deliver materials and maintain stable conditions

BBecause every cell in the body does the exact same job

CBecause only one organ contains cells at a time

DBecause homeostasis happens outside the body instead of inside it

Solution & Explanation:Organs are made of cells and tissues, and their functions depend on connections and exchanges with other organs and systems.

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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 8 Science students. It aligns with educational standard MS-LS1-3 (Students practice modeling interactions among the digestive, respiratory, circulatory, nervous, endocrine, integumentary, and urinary systems to explain homeostasis.).