Monday, 17 July 2017

Experience an earthquake in your classroom!

This week's new ELI is 'An earthquake in your classroom; a classroom earthquake intensity scale.'

This activity helps pupils to visualise what experiencing an earthquake of different intensities might be like. Dramatic re-enactment of this classroom earthquake intensity scale can make fine school drama performances or add to school open days.
It is worth repeating the old dictum, “Earthquakes don’t kill people; buildings do.”
Many more activities about earthquakes and their causes can be found on the website.

Monday, 10 July 2017

Modelling how rock cliffs and slopes collapse

'Failing slopes; modelling how rock cliffs and slopes can collapse'  Rocks with horizontal bedding tend to be fairly stable, but when they dip at an angle they are less stable, particularly if they have vertical fractures or joints. The type of collapse usually depends upon the rock type and thickness of the beds.

The activity could be used in a lesson on slope failure itself, or as an application of the physics of friction. Results obtained from an actual investigation are given in the activity.
Many more activities can be found on our website.

Monday, 3 July 2017

Rising mountains can reveal hidden secrets

The new ELI today is “Hooray and up she rises!” How a rising mountain chain can reveal its hidden secrets.

This activity is modelling how erosion of the top of a mountain range is accompanied by isostatic uplift, eventually exposing rocks, once hidden deep below. The activity is aimed at reinforcing the concept of isostasy (a state of balance in the Earth’s outer layers). It is also intended to show hat many igneous rocks become exposed at the Earth’s surface long after they have become solid rocks and are no longer flowing as magma.
Similar activities can be found on the website.