Free Printable WorksheetScienceGrade 8Science CurriculumMS-ESS3-5

8.122 Track Carbon Through the Carbon Cycle Worksheet

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Worksheet Overview & Skills Covered

Core academic competencies and curriculum alignment

This Grade 8 Science worksheet provides structured practice on 8.122 Track Carbon Through the Carbon Cycle. Students are guided through targeted exercises that build foundational understanding, computational accuracy, and critical thinking skills.

Track Carbon Through the Carbon Cycle - Which option best follow carbon as it moves among atmosphere, biosphere, geosphere, and hydrosphere; identify human alterations? (NGSS MS‑ESS3‑5 (connections); 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 8.122 Track Carbon Through the Carbon Cycle skill assessments:

Problem 1Difficulty: Mastery

A watershed contains a forest, a farm field, a river, and a coastal ocean. Fertilizer use increases algae growth, forest clearing releases soil carbon, and river water carries carbon to the ocean. Which explanation best tracks carbon and human alteration?

AThe watershed has no connection to the carbon cycle because carbon only cycles in volcanoes.

BFertilizer changes carbon atoms into nitrogen atoms, ending the carbon cycle.

CHuman land changes can move carbon from biomass and soil to air and water, while some river-carried carbon may enter ocean food webs or sediments.

DRiver water prevents carbon from entering the hydrosphere.

Solution & Explanation:Forest clearing, farming, rivers, and ocean processes can connect biosphere, geosphere, atmosphere, and hydrosphere carbon pathways.

Problem 2Difficulty: Mastery

Use the planned blank carbon-cycle model with reservoirs and unlabeled arrows. Which set of arrow labels would make the model most accurate?

Aphotosynthesis from rocks to cars; digestion from ocean to volcano; freezing from animals to sunlight; evaporation from coal to trees

Bphotosynthesis from atmosphere to plants; respiration from organisms to atmosphere; combustion from fossil fuels to atmosphere; dissolution from atmosphere to ocean

Ccombustion from atmosphere to plants only; respiration from ocean to limestone only; burial from clouds to rabbits only; feeding from rocks to air only

Dall arrows labeled carbon destruction because carbon atoms disappear in each transfer

Solution & Explanation:The accurate labels match common carbon-cycle transfers among the atmosphere, biosphere, geosphere, and hydrosphere.

Problem 3Difficulty: Mastery

Methane in the atmosphere can react with oxygen and eventually form carbon dioxide and water. Why is this still part of tracking carbon?

AThe carbon atom remains in a greenhouse gas molecule even though the molecule changes from methane to carbon dioxide.

BMethane contains no carbon, so it is outside the carbon cycle.

CThe carbon atom becomes an oxygen atom during the reaction.

DThe reaction moves carbon directly into deep coal seams.

Solution & Explanation:Chemical reactions rearrange atoms; carbon in methane can become carbon in carbon dioxide.

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Frequently Asked Questions

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QHow do I download and print this 8.122 Track Carbon Through the Carbon Cycle worksheet?

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QIs this 8.122 Track Carbon Through the Carbon Cycle worksheet free for teachers and homeschoolers?

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QCan students practice 8.122 Track Carbon Through the Carbon Cycle online with instant feedback?

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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-ESS3-5 (Which option best follows carbon as it moves among atmosphere, biosphere, geosphere, and hydrosphere; identify human alterations. Associated standards: NGSS MS-ESS3-5 connections; TEKS 112.28 Grade 8; FL NGSSS; VA SOL; MA STE.).