Earthlearningidea has continued to grow in 2011. In March we published our 100th activity with "'Crystallisation' in a pudding dish" and in October the number of downloads of our activities passed half a million. Also in 2011, our activities started to be translated into Portuguese and German. We shall continue to publish a new activity every two weeks throughout 2012.
For this last post of the year, the Earthlearningidea team would like to thank all the people who have made these achievements possible.
Amazing new imagesfrom the depths of the Pacific Ocean reveal one of Earth's most violent processes: the destruction of massive underwater mountains. They expose how tectonic action is dragging giant volcanoes into the ocean trench. The volcanoes are strung across several thousand kilometres of ocean floor and are moving westward on the Pacific tectonic plate at up to 6cm per year.
The extraordinary scene was captured along the Tonga Trench during a research expedition last summer. The trench is a highly active fault line running north from New Zealand towards Tonga and Samoa.
The video clip featured here could be used with any of our Plate tectonics activities
Our new ELI this week is 'Banana benders'. Rocks can be folded into many shapes and can be broken by faulting. These fold and fault structures can be seen in mountain ranges, cliffs and even in small hand specimens. Try using bananas to see how these structures may be formed. Ask the pupils to draw or photograph their results and then try to label the fold and fault structures using the diagrams provided.
This is one of many Earth energy/processes activities you can find on our website.