Still on our chemistry theme, today's ELI is 'The watery world of underground chemistry; using pH to link the atmosphere, hydrosphere, biosphere and lithosphere together'.

This Earthlearningidea involves a discussion, with demonstrations, of the likely change in pH of water as it goes through the underground part of the water cycle.

Related activities can be found in he Water Cycle in our Earth as a System category.

   

Continuing with chemistry, our ELI today is 'An Element of fun; an entertaining way to teach Mendeleev's Periodic Table of elements'.

Related activities can be found in Minerals and Elements in our Earth Materials category.

   

 Our ELI today is 'What am I made of? - a comparison between the chemistry of the human body and the rest of the Earth'.

This activity compares the chemical elements that make up a human body with those that make up the Earth. Notes and possible answers to some of the questions are provided.

Related activities can be found in Minerals and Elements in our Earth materials category.

   

The new ELI today is 'The ocean starts here; follow the current to discover your connection to the ocean... and the fate of litter.'

This activity aims to raise students’ awareness of the fact that everything that ends up in road drains (rubbish, other types of pollution),even in inland areas, will reach the ocean via waterways and will eventually be redistributed everywhere by ocean currents.

Related activities can be found in our Oceanography category.

   

Today's ELI is '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'.

In this activity, pupils are asked to visualise a flood seen through the window and imagine its likely impacts now and in the future. It uses the window as a teaching aid.

Other activities relating to flooding can be found in our natural hazards category - flooding.