Monday, 31 March 2025

Evidence for Plate tectonics beneath the oceans - using satellites

The new ELI today is 'Laser Quest 2 – above the waves; seeing evidence for plate tectonics beneath the oceans - using satellites.'


This ELI is a simulation to demonstrate the principle behind satellite mapping of the ocean floor based on gravitational anomalies recorded at the ocean surface.

Related activities can be found in our 'Oceanography' category.

Monday, 24 March 2025

How to model the symmetrical magnetic pattern of the rocks of the sea floor

The ELI today is 'Magnetic stripes; modelling the symmetrical magnetic pattern of the rocks of the sea floor.'


This ELI demonstrates the origin of the symmetrical magnetic anomalies which occur at
oceanic spreading centres.

Many more activities can be found in our Plate tectonics section of Earth energy / processes category.

Monday, 17 March 2025

Essential Minerals for the Green Revolution – 8 Critical Minerals

The new ELI today is  "Essential Minerals for the Green Revolution 8 Critical Minerals; essential mineral critical mineral: what is the difference?"

This ELI defines the purpose of a national critical minerals list for the future needs of the UK’s technology.

Many ELIs about essential minerals can be found in our Minerals category.


Monday, 3 March 2025

Sink Holes

Sink holes have been in the news in the UK over the last few weeks. Our ELI about this topic is 'Sink hole! Demonstrate sink hole processes in action'.


Sink holes commonly form over limestone bedrock, but also develop where the underlying materials are even more soluble, such as rock salt and gypsum deposits. This classroom activity models the dissolving of underground materials and the impacts this can have at the surface.

Other activities can be found in our natural hazards category.