Of what use is paste?
Paste fastens pieces of paper together, and it fastens paper to the walls and ceilings of rooms.
Of what use is putty?
Putty fastens the glass to the wood-work of our windows.
Capillary Attraction.
Why does a sponge suck up water?
Because the particles of the sponge have an attraction for the water.
What is this attraction called?
It is called Capillary attraction.
In what bodies do we find the most capillary attraction?