ADD TO COLLECTION
  • Add to new collection
Cancel

In this activity, students observe the teacher demonstrating changes in the properties of common substances when cooled with liquid nitrogen.

By the end of this activity, students should be able to:

  • realise that the properties of materials are often temperature-sensitive
  • recognise that the boiling point of liquid nitrogen is extremely low
  • show awareness of the potential hazards that exposure to liquid nitrogen can invoke
  • explain in simple terms the reason behind the main changes occurring in each of the demonstrations.

Download the Word file (see link below) for:

  • introduction/background notes
  • instructions on what you need and what to do
  • discussion questions
  • ideas for extending your students.
    Published 30 April 2010