Salts & Solubility

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In this online interactive simulation, learners will add different salts to water and then watch the salts dissolve and achieve a dynamic equilibrium with solid precipitate. Learners will also compare the number of ions in NaCl to other slightly soluble salts, and they will relate the charges on ions to the number of ions in the formula of a salt. Learners will also learn how to calculate Ksp values. This activity includes an online simulation, sample learning goals, a teacher's guide, and translations in over 20 languages.

Quick Guide

Preparation Time:
Under 5 minutes

Learning Time:
10 to 30 minutes

Estimated Materials Cost:
free per student

Age Range:
Ages 8 - adult

Resource Types:
Activity, Simulation

Arabic, Chinese, Croatian, Danish, Dutch, English, Estonian, French, Greek, Hebrew, Hungarian, Italian, Korean, Persian, Polish, Portuguese, Russian, Serbian, Slovak, Spanish, Swedish, Turkish

Materials List (per student)

  • Computer with online access, current Java software, and mouse


  • Engineering and Technology
    • Engineering
      • Chemical Engineering
  • Mathematics
    • Data Analysis and Probability
      • Data Analysis
      • Data Collection
      • Data Representation
    • Measurement
      • Units of Measurement
      • Size and Scale
  • Physical Sciences
    • Chemistry
      • Chemical Bonding
      • Chemical Reactions
      • Solutions
    • States of Matter
      • Liquids
    • Structure and Properties of Matter
      • Atomic Structure
      • Elements and Periodic Table
      • Volume and Density
  • The Nature of Science
    • The Scientific Process
      • Conducting Investigations
      • Gathering Data


To use this activity, learners need to:

  • see
  • see color
  • read
  • use mouse

Learning styles supported:

  • Involves hands-on or lab activities


Foreign language versions of this resource:

Components that are part of this resource:

Access Rights:

  • Free access


  • Adams, Wendy ; Koch, Linda ; LeMaster, Ron ; Loeblein, Trish ; Perkins, Kathy ; Harlow, Danielle

Source Collection

  • PhET Interactive Science Simulations


Funding Sources:

  • The William and Flora Hewlett Foundation
  • National Science Foundation
  • Excellence Center of Science and Mathematics Education at King Saud University
  • O'Donnell Foundation