Free Printable WorksheetScienceGrade 7Science CurriculumMS-LS2-3

7.42 Constructing Food Web Diagrams Worksheet

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Worksheet Overview & Skills Covered

Core academic competencies and curriculum alignment

This Grade 7 Science worksheet provides structured practice on 7.42 Constructing Food Web Diagrams. Students are guided through targeted exercises that build foundational understanding, computational accuracy, and critical thinking skills.

Constructing Food Web Diagrams - Which food web diagram best identifies a keystone species and predicts impacts of its removal? (NGSS MS‑LS2‑3)

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

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Below are sample questions representative of the exercises included on this worksheet and related 7.42 Constructing Food Web Diagrams skill assessments:

Problem 1Difficulty: Mastery
Which statement describes the strongest standards-aligned food web model of a keystone species?
AIt lists organism names without arrows or predictions.
BIt shows one chain only and labels the largest animal as most important.
CIt focuses only on body size and habitat.
DIt uses correct arrow direction, includes multiple connected feeding relationships, and predicts how removing one species changes other populations.
Solution & Explanation:A strong food web model shows accurate energy flow, realistic connections, and testable predictions about ecosystem change.
Problem 2Difficulty: Mastery
Which question is best answered by a food web model rather than by a simple count of species?
AWhat color are the leaves in fall?
BHow many squirrels live in the park?
CHow tall is one tree?
DHow removing one predator might affect several connected populations
Solution & Explanation:A food web model is designed to show relationships and ripple effects, not just simple counts or descriptions.
Problem 3Difficulty: Mastery
Use the estuary food web. Which reason best explains why oysters can act as a keystone species beyond simply being prey?
Athey change water clarity and habitat conditions for many other organisms
Bthey are always the biggest animal
Cthey only matter to one predator
Dthey photosynthesize
Solution & Explanation:Oysters can act as ecosystem engineers because their filtering and reef-building can affect many other species.

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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-LS2-3 (Primary standard selected for prompt fields in this prompt cell: NGSS MS-LS2-3. Skill statement in this prompt cell: Which food web diagram best identifies a keystone species and predicts impacts of its removal? Associated standards listed with this skill in this prompt cell: NGSS MS‑LS2‑3. Use this prompt-provided wording as the supporting standard description for this workflow.).

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