Free Printable WorksheetScienceGrade 8Science CurriculumMS-ETS1-1

8.123 Define Problems with Criteria and Constraints Worksheet

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Worksheet Overview & Skills Covered

Core academic competencies and curriculum alignment

This Grade 8 Science worksheet provides structured practice on 8.123 Define Problems with Criteria and Constraints. Students are guided through targeted exercises that build foundational understanding, computational accuracy, and critical thinking skills.

Define Problems with Criteria and Constraints - Which option best precisely define a design problem with measurable criteria for success and realistic constraints on materials, time and cost? (NGSS MS‑ETS1‑1; TEKS §112.28 Grade 8; FL NGSSS; VA SOL; MA STE; ISTE 1.4 Innovative Designer)

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 8.123 Define Problems with Criteria and Constraints skill assessments:

Problem 1Difficulty: Mastery

A museum exhibit needs visitors to feel a model earthquake without damaging the display. The exhibit must run all day using limited power. Which option best defines the design problem?

AMake an earthquake exhibit that feels realistic to visitors.

BUse a motor to shake the model because motors can create motion.

CDesign a platform that simulates every type of earthquake safely.

DDesign a shake-platform exhibit that moves a 2-kilogram model at least 2 centimeters side to side for 10 seconds per visitor, resets in under 20 seconds, uses less than 50 watt-hours per hour, costs under $150, and keeps the display attached to the platform.

Solution & Explanation:The correct statement includes measurable motion, reset, power, cost, and safety criteria. The other choices are vague, solution-specific, or too broad.

Problem 2Difficulty: Mastery

A fish hatchery model needs gentle water circulation that keeps oxygen mixed but does not disturb eggs. Which problem definition is best?

AImprove water movement so fish eggs have enough oxygen.

BUse a stronger pump because more movement mixes oxygen better.

CDesign a circulation system that moves water through the hatchery model at 0.5 to 1 liter per minute, keeps floating egg models within a 10-centimeter nursery zone, uses one small pump, costs under $20, and can be cleaned without removing the eggs.

DDesign a system that keeps every egg perfectly safe until hatching.

Solution & Explanation:The correct answer defines circulation and egg-disturbance criteria with realistic constraints. The other choices are vague, too solution-focused, or unrealistic.

Problem 3Difficulty: Mastery

A train-noise monitor must be placed outdoors near tracks for one week. It needs to collect sound data but cannot be damaged by rain or block the microphone. Which option best defines the problem?

AMake a case to protect the sound monitor outside.

BDesign a protective monitor housing that keeps rain off the electronics for 7 days, leaves the microphone opening unobstructed, reduces measured sound level by less than 2 decibels, costs under $25, and can be attached to a post without permanent damage.

CSeal the monitor inside a waterproof box so rain cannot enter.

DDesign a housing that blocks all weather without affecting any data.

Solution & Explanation:The correct definition includes measurable protection and data-quality criteria plus cost and attachment constraints. The distractors are vague or ignore sensor function.

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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 8 Science students. It aligns with educational standard MS-ETS1-1 (Students practice choosing design problem statements that include a need, measurable criteria for success, and constraints such as materials, time, cost, safety, and context.).