Free Printable WorksheetScienceGrade 5Science Curriculum5-LS2-1

5.39 Populations, Resources, and Interdependence Worksheet

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Worksheet Overview & Skills Covered

Core academic competencies and curriculum alignment

This Grade 5 Science worksheet provides structured practice on 5.39 Populations, Resources, and Interdependence. Students are guided through targeted exercises that build foundational understanding, computational accuracy, and critical thinking skills.

Populations, Resources, and Interdependence - Which option best explains scenarios to predict how changes in resources or organisms affect populations and ecosystem balance? (NGSS 5-LS2-1 connections; CCC: Stability and Change; CCSS: RI.5.3)

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 5

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 5.39 Populations, Resources, and Interdependence skill assessments:

Problem 1Difficulty: Mastery
A forest crew removes most fallen logs from a woodland each spring. Which model best predicts the domino effect after several years?
Afewer logs -> no ecosystem changes because logs are dead
Bfewer logs -> more predators because prey stop needing cover
Cfewer decomposers -> fewer recycled nutrients -> weaker plant growth -> less food and shelter for some animals
Dfewer logs -> more decomposers -> richer soil -> more plants
Solution & Explanation:Fallen logs support decomposers and nutrient recycling, so removing them can weaken plant growth and then affect animal populations.
Problem 2Difficulty: Mastery
A drought reduces grass, a new hawk pair nests nearby, and students add two nesting boxes for small birds. Which population is most likely to stay closest to its original size?
Arabbits that lost grass
Bsmall insect-eating birds that gained nesting boxes
Cmice that lose seed food and face more hawks
Dgrasshoppers that depend on plant growth
Solution & Explanation:The nesting boxes add shelter for small birds, while the other choices lose key resources or face more predation.
Problem 3Difficulty: Mastery
Which statement best shows understanding of stability and change in ecosystems?
Aecosystems can stay balanced for a time, but changes in resources or organisms can shift populations and create new patterns
Bliving things do not affect one another
Cecosystems always return to the exact same numbers
Donly weather causes change
Solution & Explanation:Ecosystems can be stable for a while, but resource or population changes can still shift the balance over time.

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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 5 Science students. It aligns with educational standard 5-LS2-1 (Primary standard selected for prompt fields in this prompt cell: NGSS 5-LS2-1. Skill statement in this prompt cell: Which option best explains scenarios to predict how changes in resources or organisms affect populations and ecosystem balance? Associated standards listed with this skill in this prompt cell: NGSS 5-LS2-1 connections; CCC: Stability and Change; CCSS: RI.5.3. Use this prompt-provided wording as the supporting standard description for this workflow.).

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