Water crystal gel or water beads or gel beads is any
gel which absorbs and contains a large amount of
water. Water gel is usually in spherical form and composed of a water-absorbing
superabsorbent polymer (SAP, also known as
slush powder in dry form) such as a
polyacrylamide (frequently
sodium polyacrylate).
Uses
Water gels are used for:
Supplying water to small
animals as an alternative to supplying water in a dish. Some small animals tend to fall into dishes of water and drown.[citation needed]