Children's Art: Color code

After the children of the weekly children's painting group were ask to paint pictures at given terms like fast, ice-cold or to-be-pleased, we started a second task:
Each child received a piece of paper on which I put terms  and I asked them to put one single color underneath the term. It was the idea of the children to discuss afterwards, which colors were chosen for which reasons.
The terms were (from up to down and left to right):
Mum, Christmas, space, greeting, river, music, everyday life, hope, to make wishes, malevolence, interest and past.