Final answer:
Adhesion is the property of water that enables it to adhere to surfaces like glass, due to its electrostatic interactions with polar substances.
Step-by-step explanation:
The property of water that allows it to stick to surfaces like glass is adhesion. Adhesion results from water's electrostatic interactions with polar covalent molecules or functional groups.
This property is responsible for phenomena such as water molecules 'crawling' up hydrophilic (water-attracting) surfaces through capillary action, often against gravity. It is also important in explaining why water spreads across surfaces and can act as an excellent solvent, helping to distribute dissolved substances.