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8.24 Solutions, Concentration and Solubility Worksheet

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Worksheet Overview & Skills Covered

Core academic competencies and curriculum alignment

This Grade 8 Science worksheet provides structured practice on 8.24 Solutions, Concentration and Solubility. Students are guided through targeted exercises that build foundational understanding, computational accuracy, and critical thinking skills.

Solutions, Concentration and Solubility - Which comparison best concentrations, explain dissolving at the particle level, and interpret saturation qualitatively, including temperature effects? (NGSS MS‑PS1‑2; DCI PS1.A; SEP: Analyzing Data; CCC: Scale/Quantity; TEKS §112.28 Grade 8; FL NGSSS; VA SOL; MA STE)

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 8.24 Solutions, Concentration and Solubility skill assessments:

Problem 1Difficulty: Mastery

A saturated solution at 40°C contains 60 g of solute in 200 mL of water. A student wants to know the solubility at 40°C in g per 100 mL.

What is the solubility at 40°C?

A60 g per 100 mL.

B120 g per 100 mL.

C20 g per 100 mL.

D30 g per 100 mL.

Solution & Explanation:If 60 g saturates 200 mL, then per 100 mL (half the water) it would saturate at half the solute: 60/2 = 30 g per 100 mL.

Problem 2Difficulty: Mastery

A teacher wants to make a supersaturated sugar solution for rock candy. Four procedures are proposed:,,Science 1) Add lots of sugar to cold water and stop when undissolved sugar appears.,,Science 2) Dissolve sugar in hot water until saturated, then cool the clear solution slowly without disturbance.,Science 3) Dissolve sugar in room-temperature water and then add ice.,,Science 4) Stir sugar in water for a long time at constant temperature until saturated.,,Science "

Which procedure is most likely to produce a supersaturated solution?,A. Procedure 1. | B. Procedure 3. | C. Procedure 4. | D. Procedure 2.,D,Supersaturation is typically made by dissolving a large amount at a high temperature (high solubility) and then cooling carefully so the excess stays dissolved temporarily. That is procedure 2.,NO,,,,,online_practice_skill_page,practice,grade 8 science solutions

Solution & Explanation:concentration and solubility review | SCI.8.24 practice | grade 8 science physical science: matter and its interactions questions,Solutions

Problem 3Difficulty: Mastery

A beaker contains 100 mL of a saturated solution at 20°C with no solid visible. The solubility at 20°C is 30 g per 100 mL. A student carefully evaporates water until only 80 mL of solution remains, keeping the temperature at 20°C.

What must be true after evaporation reaches equilibrium?

AThe solution will stay clear with all solute dissolved because evaporation increases solubility.

BThe concentration will decrease because water was removed.

CThe solution becomes unsaturated because volume is smaller.

DSome solute will precipitate because 30 g cannot stay dissolved in only 80 mL at 20°C.

Solution & Explanation:At 20°C, max dissolved scales with water volume: 30 g per 100 mL corresponds to 24 g per 80 mL. If 30 g was dissolved originally, the excess must come out as solid during evaporation.

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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 SCI.8.24 (Compare solutions by concentration, solubility, and how much solute dissolves.).