Its A Solid
These systems are gas-solid colloids. The examples are: cork, pumice stone, expanded polystyrene, sponges and many others.
Pumice stone is a porous volcanic rock formed from solidified lava with trapped gas bubbles. It is not a mixture, but rather a heterogeneous material with a mixture of solid and gas components throughout its structure.
Solid: ice, wood, metal, stone, plastic. Liquid: water, milk, juice, oil, soda. Gas: oxygen, nitrogen, carbon dioxide, helium, hydrogen.
Marbles ARE solid.
Granite is a very solid rock whereas pumice stone is much more weak and porous.
Solid
a feather is a solid
No, a solid is a solid and a gas is a gas. They are two separate states of matter.
Changing directly from a gas to a solid is called deposition.Changing directly from a solid to a gas is called sublimation.
The first 20 elements at room temperature are: Hydrogen - gas Helium - gas Lithium - solid Beryllium - solid Boron - solid Carbon - solid Nitrogen - gas Oxygen - gas Fluorine - gas Neon - gas Sodium - solid Magnesium - solid Aluminum - solid Silicon - solid Phosphorus - solid Sulfur - solid Chlorine - gas Argon - gas Potassium - solid Calcium - solid
This "stone" is a solid.
Platinum is a solid.