Monday, 15 July 2019

Rock cycle explained by plate tectonics 2

The new Eli today is 'The deep rock cycle explained by plate tectonics: deformation and metamorphism. A model showing how plate tectonics can explain metamorphism and rock-deformation'.

This activity involves a simple model to show how, as the subduction of plates causes continents to move towards one another (converge), the sediments in between are deformed into mountain chains with roots; the rocks in the root zones become regionally metamorphosed.
Many activities related to the rock cycle, plate tectonics, metamorphism and deformation can be found on our website by searching the alphabetical index of by using the search engine.

Monday, 8 July 2019

Sink holes

'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.
Many other innovative teaching ideas can be found on our website.

Monday, 1 July 2019

Rock cycle explained by plate tectonics

The new ELI today is 'The deep rock cycle explained by plate tectonics: lithification'.

A simple model used to show how, as plates carrying continents are moved apart by plate tectonics, the sediments in between sag into a deepening sedimentary basin giving quicker lithification processes.
This activity will be followed by how plate tectonics can explain deformation and metamorphism.
Many activities related to both the rock cycle and to plate tectonics can be found on our website.

Monday, 24 June 2019

Odd bumps on the bases of sedimentary beds

'Sedimentary structures – load casts; interpreting odd bumps on the bases of beds'

The activity is part of a series on sedimentary structures and the ways in which they can be used to interpret past conditions. You can find other related activities by using the search engine or scrolling down in the alphabetical index on our website.

Tuesday, 18 June 2019

Sorting, naming and putting rocks into the rock cycle

Today's new ELI is "From ‘Rock detective’ to ‘Laying out the rock cycle’: investigate rocks to sort them into groups, add them to the rock cycle and name them"

This activity uses sorting cards to link two Earthlearningideas together - ‘Rock detective’ and the ‘Laying out the rock cycle'.
By doing this pupils can investigate a range of rocks from first principles, identify and name them and then build understanding of them in a rock cycle context. It helps them to name rocks, not just by recognising them but by using first principles of observation and investigation.
A variety of activities about rock types and the rock cycle can be found on our website by using the alphabetical index.

Monday, 10 June 2019

Sea shells and their habitats

Sea shell survival; how are common sea shells adapted to their habitats?

This activity gives an an introduction to the relationship between the features of shells of bivalves and their habitats. Many marine animals are specially adapted to give them the best chance of survival in their habitats. These adaptations are reflected in their shell structure. This ELI may be used as a prelude to determining ancient environments from the fossil remains or from the traces of similar organisms in rocks.
Many more activities related to fossils and past environments can be found on our website in the 'Evolution of Life' category.

Monday, 3 June 2019

Exploring current flows through straits

Today's new ELI is 'Exploring current flows through straits; testing the L. F. Marsili model of Bosphorus currents (1680)'

This Earthlearningidea models the flow of seawater of different densities through straits, e.g. the Bosphorus. It addresses several concepts within Earth sciences (concentration, density, diffusion) by means of modelling typical of a science investigation, with an example taken from the age of the Scientific Revolution.
Other activities about ocean currents, sea water density and famous scientists can be found on our website either by using the search engine or the alphabetical index.