Our new ELI today is '‘Photo dating’; using photos to simulate the relative dating of the rock record.'
This activity has been devised to demonstrate the principles behind relative dating using zone fossils by substituting photographs, taken over a period of time within the experience of the students.
Related activities can be found in our Geological Time category.
We continue our series investigating geological time with '‘Looking so far into the Abyss of Time’; how to visualise the immensity of geological time...with a rope!'.
This ELI is an exercise to demonstrate the extent of geological time-scales and the need for meaningful geological reference points, obtained from fossils and other geological events, recorded in the rock record.
Go to 'Visualising deep time' in our Geological Time category for other related activities.
The ELI today continues our theme of geological (deep) time with 'But how old is it? Investigating radioactive dating of rocks and minerals'.
This activity investigates how radioactive (radiometric) or absolute dating of rocks and minerals works.
Related activities can be found in our Geological Time category - Visualising deep time.
Continuing our theme of geological time, the ELI today is 'The origin of the Earth – at arm’s length: the age of the Earth - with a good stretch of imagination.'
This activity teaches the great length of geological time in a fun way. It could be used to reinforce other methods of helping pupils to understand the concept of “deep time”, e.g. during a quick-fire revision session.
Related activities can be found in our Visualising Deep time, Geological Time category.
For the next few weeks, we will be considering geological time. The ELI today is 'The toilet roll of time; make a geological timeline to take home'.
This activity has been devised to address the common lack of knowledge about geological time. Research has shown that many people have no idea of the great length of geological time nor of the order of the key events during the geological history of the Earth.
Related activities can be found in our Geological Time category, Visualising deep time.
Our new ELI today is the 9th in our Essential Minerals series - 'Essential Minerals for the Green Revolution – 9 Critical Minerals for the USA'
This Earthlearningidea defines the purpose of a national critical minerals list for the current and future needs of the USA’s industries and technology. This activity could form an extension of the ELI series on metal ores which are essential for the “new” technologies as well as the growth of existing industries.
Related activities can be found in our Minerals category.
We continue our theme of Essential Minerals for the Green Revolution with 'Rare Earth Elements; vital components in modern technology'.
This activity could be used in a lesson on the need to identify and exploit rare earth minerals in vital applications in many different fields, ranging from optics to energy saving devices and medical equipment. They are particularly important as catalysts in industrial processes and in the manufacture of strong magnets.
Other related activities can be found in our Minerals category.