Monday, 20 November 2017

Temperatures on Earth in the past - using oxygen isotopes

Today's new ELI+ activity is 'The oxygen isotope sweet simulation; demonstrating how the oxygen isotope proxy records past Earth temperatures'.

Using coloured sweets, the activity simulates how the relative proportions of 16O and 18O can indicate past Earth temperatures.
Many activities for students aged 16 plus can be found on our website.

Monday, 13 November 2017

Limestone karstic scenery - in 60 seconds

Have you tried modelling the chemical weathering of limestone? Try the Earthlearningidea 'Karstic scenery - in 60 seconds' 

This activity can be used in any science or geography lesson and leads into a detailed discussion of karstic scenery and how it develops. There are many other activity ideas related to weathering and to limestone on the website.

Monday, 6 November 2017

Rock cycle at your fingertips

Today's new ELI is 'The rock cycle at your fingertips; modelling the rock cycle with your fingers'

The rock cycle is an abstract concept which pupils can find difficult to understand. For example, when asked how a rock formed, one student responded, “It went through the rock cycle” much as laundry goes through a wash cycle – something that is done to a rock to change it.’ This activity helps to explain the process.
Other teaching ideas about the rock cycle and many suggestions for hands-on activities, can be found on our website.

Monday, 30 October 2017

Demonstration of how limestone is weathered

The ELI 'Weathering limestone – with my own breath!' is a classroom demonstration of how limestone is weathered. It involves blowing into neutral water to produce a weak acid. Powdered limestone is added to neutralise the acid, as a quick-acting laboratory example of how limestone is weathered in the
natural world.

This activity may be used in Geography or Science lessons.
Many more activities related to all types of weathering may be found on our website.

Monday, 23 October 2017

Modelling earthquake wave amplification

Our new Earthlearningidea is 'Jelly/biscuit modelling of how earthquake waves amplify and devastate; demonstrating how seismic shaking depends on local geology'

The model represents a place like Mexico City where the central part of the city is built on solid rock but the rest of the city is built on soft lake bed sediments. This means that different parts of the city, only a few hundred metres apart, respond very differently to earthquake shaking.
Many activities about earthquakes for all ages, can be found by searching our website.
This activity was devised and written by a colleague in the British Geological Survey.

Monday, 9 October 2017

The rock cycle - common misconceptions

The new ELI today is 'Not misunderstanding the rock cycle: addressing common misconceptions about the rock cycle'

This is a sorting exercise directly focussed on common rock cycle misconceptions. The activity takes the educational approach known as constructivism. Through constructivism, student misconceptions are identified and directly targeted by teaching.
Many more Earthlearningideas related to the rock cycle can be found on the website.