colour writing...

...chromatography stars for the Christmas tree.

'SciTrekkers' Christmas bash at Perth's wonderful Scitech centre where kids (and others) collide with all things science, geeky and pure fun.
The labs were open tonight with experiments to be done including chromatography (colour writing) - inks striped and dotted on blotting paper  then dipped in water and PRESTO!
Cool stars as the colours separate into their components.

Much less separating going on at the snack table where crisps and cheezels and lollies merged very well! to say nothing of a massive sugar hit.