Edit Delete - Last Modified By: rdu at 20/02/2015 1:31:58 PM
In fifth century BC, Greek philosophers thought that everything was made from four basic ingredients - earth, air, fire and water. Since then, scientists have proven that all matter is made from basic ingredients, but not earth air, fire and water.
All matter is made from a selection of over one hundred basic ingredients called elements.
What elements can you name, and what do you know about them?