Gel facts for kids
A gel is a semi-solid substance material which usually wobbles.
By weight, gels are mostly liquid. But gels also behave like solids. They have a three-dimensional cross-linked network within the liquid. It is the crosslinks in the fluid that give a gel its structure.
Images for kids
A short-peptide-based hydrogel matrix, capable of holding about one hundred times its own weight in water. Developed as a medical dressing. The thickness of the fibers was on the order of tens of nm, mimicking the fibrous microenvironment found in the extracellular matrix. Field emission scanning electron microscopy image
Gel Facts for Kids. Kiddle Encyclopedia.