Free Printable WorksheetScienceGrade 7Science CurriculumMS-LS1-6

7.30 Matter Cycling Carbon, Oxygen, and Water in Organisms Worksheet

Download our free printable Grade 7 Science worksheet on 7.30 Matter Cycling Carbon, Oxygen, and Water in Organisms. Ideal for classroom practice, homeschool learning, independent homework, and standardized test preparation. Available in both print-ready PDF and editable DOCX formats.

Choose your preferred download format:

100% Free • No registration or login required • Instant file access

Download PDF Download DOCX

Prefer interactive practice with instant grading and explanations?Practice Matter Cycling: Carbon, Oxygen, and Water in Organisms Online

Worksheet Overview & Skills Covered

Core academic competencies and curriculum alignment

This Grade 7 Science worksheet provides structured practice on 7.30 Matter Cycling Carbon, Oxygen, and Water in Organisms. Students are guided through targeted exercises that build foundational understanding, computational accuracy, and critical thinking skills.

Matter Cycling: Carbon, Oxygen, and Water in Organisms - Which diagram best represents carbon or water cycling between organisms and the environment? (NGSS MS‑LS1‑6; MS‑ESS2‑4)

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 7.30 Matter Cycling Carbon, Oxygen, and Water in Organisms skill assessments:

Problem 1Difficulty: Mastery

A mangrove nursery contains young mangroves, snails, microbes, shallow water, and warm air. Which model best represents the system?

ASnails create all matter in the nursery, and mangroves only store sunlight.

BMangroves take in carbon dioxide and water, animals transfer carbon by feeding, microbes decompose wastes and dead material, and water cycles among roots, water, and air.

CWarm air is the only part of the system that cycles matter because living things only store it.

DMicrobes remove carbon from the nursery permanently so it cannot return to the environment.

Solution & Explanation:A complete model includes producers, consumers, decomposers, and the environment. In a mangrove nursery, both carbon and water move among those parts.

Problem 2Difficulty: Mastery

Salmon feed in the ocean and later die in a forest stream after spawning. Which statement best explains carbon transfer across ecosystems in this case?

ACarbon fixed in ocean food webs can be moved to stream and forest organisms when salmon are eaten or decomposed.

BForest trees make all salmon carbon on land before the fish return from the ocean.

CSalmon carry only water between ecosystems, not carbon-containing matter.

DOcean carbon cannot enter freshwater systems because fish bodies do not store carbon.

Solution & Explanation:Salmon bodies contain carbon from the ocean food web. When the fish die or are eaten near streams, that carbon can enter freshwater and forest ecosystems.

Problem 3Difficulty: Mastery

A greenhouse manager must choose between overwatering plants with poor ventilation or watering adequately and opening roof vents part of the day. Which choice best supports healthy matter cycling?

APoor ventilation and heavy overwatering, because plants do not need carbon dioxide once they have water.

BNo watering and no ventilation, because stable air stops matter from leaving plants.

CRemoving the plants and running fans only, because empty space cycles matter better than living systems.

DAdequate watering with controlled ventilation, because plants need water for transpiration and photosynthesis while also needing gas exchange with the air.

Solution & Explanation:Plants need both a water supply and gas exchange. Controlled ventilation can support healthy carbon dioxide exchange while helping manage excess humidity.

Want more practice questions with step-by-step guidance?

Practice All Questions Online

Frequently Asked Questions

Common questions about printing, using, and solving this worksheet

QHow do I download and print this 7.30 Matter Cycling Carbon, Oxygen, and Water in Organisms worksheet?

Click either the "Download PDF" or "Download DOCX" button at the top of the page. You can print the PDF directly from your browser or edit the DOCX file in Microsoft Word or Google Docs to tailor the questions to your students.

QIs this 7.30 Matter Cycling Carbon, Oxygen, and Water in Organisms worksheet free for teachers and homeschoolers?

Yes! All learning materials, worksheets, and practice resources on Free K12 Practice are 100% free for teachers, students, parents, tutors, and homeschooling families for non-commercial educational use. No account or subscription is required.

QCan students practice 7.30 Matter Cycling Carbon, Oxygen, and Water in Organisms online with instant feedback?

Yes! In addition to this printable worksheet, students can practice 7.30 Matter Cycling Carbon, Oxygen, and Water in Organisms interactively on our platform with automated grading, instant score tracking, and detailed step-by-step solutions.

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-LS1-6 (Primary standard selected for prompt fields in this prompt cell: NGSS MS-LS1-6. Skill statement in this prompt cell: Which diagram best represents carbon or water cycling between organisms and the environment? Associated standards listed with this skill in this prompt cell: NGSS MS-LS1-6; MS-ESS2-4. Use this prompt-provided wording as the supporting standard description for this workflow.).