Free Printable WorksheetScienceGrade 7Science CurriculumMS-LS1-2

7.25 Cell Transport Diffusion and Osmosis Worksheet

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Worksheet Overview & Skills Covered

Core academic competencies and curriculum alignment

This Grade 7 Science worksheet provides structured practice on 7.25 Cell Transport Diffusion and Osmosis. Students are guided through targeted exercises that build foundational understanding, computational accuracy, and critical thinking skills.

Cell Transport: Diffusion and Osmosis - Which prediction about water or solute movement across a membrane is most accurate? (NGSS MS‑LS1‑2 connections; IXL B.6 protocol about diffusion)

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 7.25 Cell Transport Diffusion and Osmosis skill assessments:

Problem 1Difficulty: Mastery

Use the planned particle model to answer the question. A membrane allows water and oxygen to cross but not glucose. On the left side there are 90 water molecules, 10 glucose molecules, and 0 oxygen molecules. On the right side there are 70 water molecules, 10 glucose molecules, and 20 oxygen molecules. Which combined prediction is most accurate?

AWater moves left to right, oxygen moves right to left, and glucose does not cross.

BWater moves left to right, oxygen moves left to right, and glucose moves right to left.

CNo particles move because glucose is blocked.

DWater moves right to left, oxygen moves left to right, and glucose moves right to left.

Solution & Explanation:Water moves from higher water concentration on the left to lower on the right. Oxygen moves from higher concentration on the right to lower on the left. Glucose is blocked by the membrane.

Problem 2Difficulty: Mastery

A student predicts that blue dye will diffuse from Side P to Side Q because the membrane is permeable to the dye and the dye starts more concentrated in Side P. Which observation would most clearly refute the prediction?

ASide Q becomes slightly blue over time.

BThe dye in Side P becomes lighter over time.

CSide Q stays colorless and no dye is detected there, even after repeated trials.

DBoth sides become the same shade of blue after a while.

Solution & Explanation:If no dye ever appears on the other side under the same conditions, the predicted diffusion from P to Q is not supported.

Problem 3Difficulty: Mastery

A class writes four descriptions of osmosis. Which description is correct?

AWater moves toward the side with fewer dissolved particles because it is lighter.

BWater moves through a selectively permeable membrane toward the side with more dissolved particles when those particles cannot cross.

CLarge proteins always diffuse faster than water.

DOsmosis is the movement of any solute through any membrane.

Solution & Explanation:That definition correctly describes water moving across a selective membrane toward the side with higher solute concentration.

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Frequently Asked Questions

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QHow do I download and print this 7.25 Cell Transport Diffusion and Osmosis worksheet?

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QIs this 7.25 Cell Transport Diffusion and Osmosis worksheet free for teachers and homeschoolers?

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Yes! In addition to this printable worksheet, students can practice 7.25 Cell Transport Diffusion and Osmosis interactively on our platform with automated grading, instant score tracking, and detailed step-by-step solutions.

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-LS1-2 (Primary standard selected for prompt fields in this prompt cell: NGSS MS-LS1-2. Skill statement in this prompt cell: Which prediction about water or solute movement across a membrane is most accurate? Associated standards listed with this skill in this prompt cell: NGSS MS-LS1-2 connections; IXL B.6 protocol about diffusion. Use this prompt-provided wording as the supporting standard description for this workflow.).