|quickly put the color|
|put salt on watercolor still wet|
|paper towel on the bottom of a glass:
when the watercolor is still wet absorbs the color to make the sun
|cling film on wet watercolor creates the effect of ice|
For lessons about Arctic and Antarctic animals you can also draw some polar animals on the landscapes: NORTH POLE with white bears and igloo and SOUTH POLE with penguins and seals. You just need pencils, black marker, white paper, scissors and glue.