'Exploring current flows through straits; testing the L. F. Marsili model of Bosphorus currents (1680)'. This activity models the flow of seawater of different densities through straits, addressing several concepts within Earth sciences (concentration, ...
This activity models the flow of seawater of different densities through straits, addressing severalconcepts within Earth sciences (concentration, density, diffusion) by means of modelling.
Related activities can be found in our Oceanography category.
A demonstration, involving blowing into neutral water to produce a weak acid. Powdered seashells are added and react with the acid, as a quick-acting laboratory example of how an acidifying ocean affects the life of many marine organisms.
Other related activities can be found in 'Climate change' in the 'Resources and Environment' category.
This ELI involves a field simulation of the scratching of striations on bedrock by the debris frozen into an ice sheet, used to approximately calculate the thickness of the ice sheet and to discuss the assumptions made. The activity has been devised to enable pupils to gain a deeper understanding of the glacial processes which erode bedrock surfaces.
Related activities can be found in 'Sedimentary processes' in the Earth energy/processes category.
Pupils learn to describe spectacular and popular landforms sufficiently accurately that they can be drawn by someone else. This can lead to an in-depth understanding of the particular landform.
This activity is all about sorting rocks according to their properties, which depend upon how they were formed. Pupils use the characteristic properties of a set of rocks to sort them into sedimentary, igneous and metamorphic rock groups. This works reasonably well for most rocks, but there are exceptions which are explained in the activity.
Other ELIs about rocks can be found in the Rocks section of Earth Materials.