There are two types of pure substances: elements (simple pure substances) and compounds.
Elements, such as oxygen or chlorine, are the "ingredients of the universe".
They combine to form compounds, such as water or salt.
Watch this video to find out more!
Here is a fascinating website where you can watch videos about all of the ELEMENTS:
Here is a great website with information about the ELEMENTS!:
And here is another website where you can learn more about the ELEMENTS:
No hay comentarios:
Publicar un comentario