Free Printable WorksheetScienceGrade 7Science CurriculumMS-PS1-2

7.83 Solutions and Concentration Worksheet

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Worksheet Overview & Skills Covered

Core academic competencies and curriculum alignment

This Grade 7 Science worksheet provides structured practice on 7.83 Solutions and Concentration. Students are guided through targeted exercises that build foundational understanding, computational accuracy, and critical thinking skills.

Solutions and Concentration - Which interpretation of a solubility graph correctly predicts whether a solution is saturated? (NGSS MS‑PS1‑2 connections; IXL M)

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 7.83 Solutions and Concentration skill assessments:

Problem 1Difficulty: Mastery
Use the final solubility graph for Solute NNN. Which interpretation correctly predicts whether Sample Z is saturated?
ASample Z is unsaturated because 64 g is a large amount of solute.
BSample Z cannot be interpreted because solubility curves do not compare grams and temperature.
CSample Z is saturated because its point is on the curve at 50 degrees C.
DSample Z is supersaturated because it is cooler than 60 degrees C.
Solution & Explanation:The graph shows Sample Z at the same coordinate as the solubility curve. A point on the curve represents a saturated solution.
Problem 2Difficulty: Mastery
Which evidence is enough to say a solution is saturated at its current temperature?
AThe graph for a different solute has a high curve.
BThe dissolved mass equals the solubility value from a graph at that same temperature.
CThe solution has a bright color but no measurements.
DThe solute container is almost empty after the lab.
Solution & Explanation:Saturation is defined by comparing the dissolved amount with the solubility limit for the same solute at the same temperature.
Problem 3Difficulty: Mastery
A solution begins with 40 g solute in 80 g water at 50 degrees C. The solubility at 50 degrees C is 70 g per 100 g water. Then 40 g water is added and the temperature is lowered to 20 degrees C, where the solubility is 35 g per 100 g water. What is the final classification?
Apure solvent
Bunsaturated
Csaturated
Dsupersaturated if all 40 g stays dissolved
Solution & Explanation:After adding water, the solution has 40 g solute in 120 g water, or about 33.3 g per 100 g water. At 20 degrees C the solubility is 35 g per 100 g water, so it is slightly below the limit and unsaturated.

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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-PS1-2 (Primary standard selected for prompt fields from the uploaded curriculum/source document: NGSS MS-PS1-2. Skill statement from the uploaded curriculum/source document: Which interpretation of a solubility graph correctly predicts whether a solution is saturated? Associated standards listed with this skill in the uploaded curriculum/source document: NGSS MS-PS1-2 connections; IXL M. Use this curriculum wording as the best available supporting standard description for this prompt-prep workflow.).

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