Free Printable WorksheetScienceGrade 8Science CurriculumSCI.8.99

8.99 Trace Matter and Energy on Food Webs Worksheet

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Worksheet Overview & Skills Covered

Core academic competencies and curriculum alignment

This Grade 8 Science worksheet provides structured practice on 8.99 Trace Matter and Energy on Food Webs. Students are guided through targeted exercises that build foundational understanding, computational accuracy, and critical thinking skills.

Trace Matter and Energy on Food Webs - Which option best follow arrows to track energy flow and matter cycling; identify producers, consumers, and decomposers? (NGSS MS‑LS2‑3; 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 8.99 Trace Matter and Energy on Food Webs skill assessments:

Problem 1Difficulty: Mastery

Two students discuss the web: Student A: "Energy cycles back to producers through decomposers." Student B: "Matter from dead organisms can be recycled back to producers by decomposers." Who is correct?

AStudent A (or Student 1) only

BBoth students are correct

CNeither student is correct

DStudent B (or Student 2) only

Solution & Explanation:Energy is not recycled; it enters as sunlight and leaves as heat. Matter can be recycled because decomposers return nutrients that producers can use again.

Problem 2Difficulty: Mastery

This question has two parts.,,Science Part 1: Which path correctly traces **energy** from the Sun to the bobcat?,,Science Part 2: Which step shows **matter cycling** back to producers?,,Science "Which option answers BOTH parts correctly?,A. Part 1: bobcat -> songbird -> caterpillar -> oak tree -> Sun Part 2: nutrients in soil -> maple tree | B. Part 1: Sun -> oak tree -> caterpillar -> songbird -> bobcat Part 2: maple tree -> nutrients in soil | C. Part 1: Sun -> oak tree -> caterpillar -> songbird -> bobcat Part 2: nutrients in soil -> maple tree | D. Part 1: Sun -> maple tree -> bobcat Part 2: bobcat -> nutrients in soil,C,Energy paths must follow arrows from Sun to producers and then through eaters. Matter cycles back when nutrients return to producers (e.g.

Solution & Explanation:and arrows tracing matter and energy flow with answer-neutral styling. Use this question context: Ecosystem: Deciduous forest. Arrows point from the food to the eater (energy and matter move in that direction). Food web: Sun -> maple tree Sun -> oak tree oak tree -> deer maple tree -> caterpillar oak tree ->... If helpful

Problem 3Difficulty: Mastery

This question has two parts. Part 1: Which path correctly traces **energy** from the Sun to the reef shark? Part 2: Which step shows **matter cycling** back to producers? Which option answers BOTH parts correctly?

APart 1: reef shark -> octopus -> parrotfish -> algae -> Sun Part 2: nutrients in water -> phytoplankton

BPart 1: Sun -> algae -> parrotfish -> octopus -> reef shark Part 2: nutrients in water -> phytoplankton

CPart 1: Sun -> algae -> parrotfish -> octopus -> reef shark Part 2: phytoplankton -> nutrients in water

DPart 1: Sun -> phytoplankton -> reef shark Part 2: reef shark -> nutrients in water

Solution & Explanation:Energy paths must follow arrows from Sun to producers and then through eaters. Matter cycles back when nutrients return to producers (e.g., **nutrients in water -> phytoplankton**).

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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 SCI.8.99 (Trace how matter cycles and energy flows through food webs.).