Mothers' Day flowers

For Mothers' Day, we gave our mums a flower, but not just any flower - a flower that we had created specially!  First we made different coloured solutions in test tubes, using dye from our art cupbaord.  Then we placed the white flowers in the test tubes.  The flowers sucked the dye up their stems by capillary action.  After a few hours, the dye travelled right up into the petals which changed colour, depending on the dye used - we created yellow, pink, red, blue and green flowers out of the original white ones.