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Density Tower

The density tower experiment will help demonstrate the idea that solutions of different concentrations will have different densities. By dissolving different numbers of salt in water, a number of different layers can be formed. In this experiment, we have also used food colouring to more easily observe the different layers.

Suggested teaching points

  • Density
  • Physical properties of chemicals
  • Practical skills
  • Problem solving skills

This file contains a set of detailed instructions, suggested questions, suggested improvements and disposal procedures for this experiment.

(PDF Document) Density Tower Experiment Instructions

Before attempting this experiment, please ensure that you have read the safety section in the document above and performed a complete risk assessment. If you have any questions, comments or feedback, please use these forms.