In this activity, students capture bubble outlines on paper by blowing bubbles dyed with food colouring.
Bubbles are temporary structures, but we can capture their shapes and patterns on paper if we give them some colour.
When you add paint or food colouring to bubble solution, the dyes bind to the water molecules.
If you pop a dyed bubble against paper (or your clothes—be careful!), the bubble deposits the water and dyes onto the paper’s surface.
Even after the water has evaporated, the dyes will remain, so you can examine the beautiful patterns at your leisure.