Evidence for plate tectonics beneath the oceans

The new ELI today is 'Laser Quest 1 – below the waves; seeing evidence for plate tectonics beneath the oceans - using echo sounding'.

This activity is a simulation to demonstrate the principle behind the echo sounding method of mapping the ocean floor topography.

Related activities can be found in the 'Oceanography' and 'Plate tectonics' categories.

How do we measure sea floor depths and their relief?

 The ELI today is 'Measuring the depths of seas and oceans: How is it done? - a simple demonstration of how we measure sea floor depths and relief'.

This Earthlearningidea demonstrates ancient and modern methods of measuring and profiling sea and ocean floor depths.

Related activities can be found in our Oceanography category.

Continental split - modelling the birth of the Atlantic Ocean

Today's ELI is 'Continental split – the opening of the Atlantic Ocean; modelling how the continents moved, from Pangaea to today'.

This is a scissors and paper activity modelling the relative positions and movements of the continents as the ocean floor spreads either side of an oceanic ridge.

Other activities related to constructive or divergent plate margins can be seen in our Plate Tectonics category.

What would a major flood outside your window be like?

Our ELI today is about flooding 'Flood through the window - what would you see, how would you feel? Pupils picture for themselves what a major flood through the window might look like'.

This earthlearningidea uses a window as a teaching aid – what would a flood outside be like? There are a series of questions to answer. At the end of the exercise, pupils have a good understanding of flooding.

Related activities can be found in our Natural Hazards category.