Free Printable WorksheetScienceGrade 7Science CurriculumMS-LS2-1

7.41 Building and Analyzing Population Models Worksheet

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Worksheet Overview & Skills Covered

Core academic competencies and curriculum alignment

This Grade 7 Science worksheet provides structured practice on 7.41 Building and Analyzing Population Models. Students are guided through targeted exercises that build foundational understanding, computational accuracy, and critical thinking skills.

Building and Analyzing Population Models - Which population graph most likely represents logistic growth under limiting factors? (NGSS MS‑LS2‑1; CCSS MP.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 7.41 Building and Analyzing Population Models skill assessments:

Problem 1Difficulty: Mastery
A marsh crab population is counted as 25, 48, 81, 110, 126, 131, and 130. At the same time, the amount of available food drops after week 4. Which conclusion is best supported?
Athe population is exponential because it increased in the early weeks
Bthe food data are unrelated because only population size matters
Cthe population is linear because the counts are listed in order
Dthe population shows logistic growth, with limiting food helping set carrying capacity near 130
Solution & Explanation:The crab counts begin to level near 130, and the drop in food suggests a limiting factor helped create that carrying capacity.
Problem 2Difficulty: Mastery
A habitat has a carrying capacity of 90 organisms. At week 4, the population is 70. How many more organisms can the habitat support before reaching carrying capacity? Enter a whole number only.
Solution & Explanation:Subtract 70 from 90. The habitat can support 20 more organisms before reaching carrying capacity.
Problem 3Difficulty: Mastery
A local rabbit model matches the data until new rabbits begin entering from nearby fields each month. Which revision would most improve the model?
Aadd immigration as another factor that changes population size
Bassume the carrying capacity becomes zero immediately
Cremove births and deaths from the model
Dreplace the population graph with a weather chart
Solution & Explanation:If rabbits are arriving from outside the habitat, immigration must be included because it changes population size in addition to local births and deaths.

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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-LS2-1 (Primary standard selected for prompt fields in this prompt cell: NGSS MS-LS2-1. Skill statement in this prompt cell: Which population graph most likely represents logistic growth under limiting factors? Associated standards listed with this skill in this prompt cell: NGSS MS-LS2-1; CCSS MP.4. Use this prompt-provided wording as the supporting standard description for this workflow.).

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