Monday, 16 September 2019

Journey to the centre of the Earth – on a toilet roll

'Journey to the centre of the Earth – on a toilet roll: just how thin is the crust we live on?'

We seldom stop to consider the true scale of many features of the Earth. This activity aims to enable pupils to visualise the thickness of the crust in relation to the rest of the Earth. It also helps them to appreciate the difference in depth between the oceanic crust and the continental crust. It introduces the terms ‘lithosphere’ and‘asthenosphere’ to help in understanding plate tectonic theory.
Visit our website for other related teaching ideas.

Tuesday, 10 September 2019

Does sea level change when floating sea ice melts?

The new ELI today is 'Melting ice and sea level change 1 – sea ice: does sea level change when floating sea ice melts?'

This activity investigates the impact on water levels of allowing floating ice to melt. There is much misunderstanding of the impact on world sea level of melting sea ice, which this simple activity should dispel.
Many more activities about climate change and the changing state of ice can be found on our website.

Monday, 2 September 2019

Pressures underground

From our ELI+ series - 'Under pressure: calculating the intense pressures underground'

This activity uses lab measurements of the force applied by different depths of sand and water to calculate their downward pressure and then uses these figures to extrapolate to likely pressures at crustal depths.
Many more ELI+ activities can be found on our website.