Pinta la galaxia: acuarela

Students will use the following materials (student grade artist materials are appropriate):
 3-5 sheets, A4 in size, of watercolor paper. 
watercolor paints  - ultramarine blue, burnt umber, crimson red, titanium white
one medium sized synthetic bristle paintbrush 
one detail  sized synthetic paintbrush
one pencil, eraser, and ruler
one clean water pot (with clean water)
one paint water pot   
3-4 paper towels
salt 
Bonus: 
access to hairdryer with adult supervision 
Optional: 
white gel pen
black marker or felt tip pen