Site Navigation
Site Directions
Search AlgebraLAB
Career Profiles
Reading Comprehension Passages
Practice Exercises
Science Graphs
StudyAids: Recipes
Word Problems
Project History
Project Team

Salt Water Density
Previous knowledge: As the amount of dissolved salt increases, a salt water solution becomes denser.
Purpose: In this activity, you will prepare a set of 5 salt water solutions. In order to distinguish them easily, each solution will have a different color. After preparing the solutions, you will experiment with them to study how solutions of different densities can maintain separate layers. Using this knowledge, you will determine the % of salt in a sample of sea water. 
  1. Prepare a set of 5 salt water solutions of different densities, each tinted a different color, using:
    • 5 plastic cups
    • Permanent marking pen
    • Salt
    • Water
    • Electronic balance
    • Food coloring
  1. Investigate how the solutions of different density can maintain separate layers, using:
    • 5 test tubes
    • Test tube rack
    • Hollow glass rod, 15 cm in length
    • Beaker to act as a container for waste
    • Prepared set of salt water solutions
  1. In the final activity, you will need to determine the % of salt in ocean water. You will need:
    • Test tube
    • Ocean water

E Saylor

Show Related AlgebraLab Documents

Return to STEM Sites AlgebraLAB
Project Manager
   Catharine H. Colwell
Application Programmers
   Jeremy R. Blawn
   Mark Acton
Copyright © 2003-2023
All rights reserved.