It is a non newtonian liquid - simple!
Water changes from liquid to solid at 0 degrees Celsius.
Cornflower mixed with water creates a non-Newtonian fluid known as oobleck, which exhibits properties of both a liquid and a solid. When pressure is applied, the starch particles in cornflower bind together, causing the mixture to behave like a solid. Conversely, when the pressure is released, it flows like a liquid. This unique behavior is due to the interactions between the starch and water molecules, resulting in a suspension that responds differently under varying stress conditions.
Cornflower... and corn flour, for that matter... is neither a liquid nor a gas and cannot be induced to become either; it decomposes first.
liquid
When cornflower and water are boiled, the cornflower thickens to make a jelly.,
solid liquid
Liquid.
Solid
it is a gas
The general classes of colloids are sols (solid particles dispersed in a liquid), gels (cross-linked networks of solid particles dispersed in a liquid), and emulsions (liquid droplets dispersed in another liquid).
change of a liquid to a solid
A gas is not a liquid or a solid.