Activity

Observing water’s thin ‘skin’

In this activity, students conduct a few simple activities to learn more about surface tension – a liquid’s thin ‘skin’.

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

  • talk about water molecules and the way in which they are attracted to each other

  • talk about how the various activities demonstrate surface tension

  • use equipment in a consistent manner.

Download the Word file for:

  • introduction/background notes

  • what you need

  • what to do

  • student handout.

Related activity ideas

See the activity Observing bubbles and explore surface tension further – the curious force that holds individual liquid molecules together.

Follow up with Investigating bubbles – in this activity students work as scientists as they experiment with bubbles.

Useful link

This short video on YouTube demonstrates the effect of soap on surface tension.

Published: 22 June 2014