The Sun is our nearest star. It is, as all stars are, a hot ball of gas made up mostly of Hydrogen. The Sun is so hot that most of the gas is actually plasma, the fourth state of matter. Gas is the third state of matter.

Most flames are made of hot gas, but some burn so hot they become plasma. The nature of a flame depends on what is being burnt. A candle flame will primarily be a mixture of hot gases (air and vaporised paraffin wax). The oxygen in the air reacts with the paraffin to produce heat, light and carbon dioxide.

Fire doesn’t fall into gas, because it doesn’t expand in the same way gas does. Fire doesn’t fall into liquid, because it doesn’t have a fixed volume. Fire doesn’t fall into solid, because it doesn’t have a fixed shape. Thus, fire is currently considered a plasma.

The flames are obviously not solid, nor are they liquid. Mingling with the air, they’re more like a gas, but more visible–and more fleeting. And on a scientific level, fire differs from gas because gases can exist in the same state indefinitely while fires always burn out eventually.

The main reason why the flame has no shadow is because the flame itself is a source of light. A shadow is the surface area which is less bright than its surroundings because something is blocking light partially or fully from that area. Therefore, a shadow is nothing but a darker area with the absence of light.

Matter is anything that has mass and occupies space. The flame itself is a mixture of gases (vaporized fuel, oxygen, carbon dioxide, carbon monoxide, water vapor, and many other things) and so is matter. The light produced by the flame is energy, not matter. The heat produced is also energy, not matter.

solid

Answered! Traditional jello is made with gelatin, which is always animal-based and never, ever vegan. Carrageenan, agar, pectin, and other gelatin alternatives allow vegans to enjoy animal-free versions of their favorite gelatin-based desserts and candies from their childhood.

A gel has been defined phenomenologically as a soft, solid or solid-like material consisting of two or more components, one of which is a liquid, present in substantial quantity. By weight, gels are mostly liquid, yet they behave like solids because of a three-dimensional cross-linked network within the liquid.

The hand sanitizer is a liquid, it then evaporates turning into a gas. There are also many cooking experiments you can do: make jello to show liquid to solid, make toffee candy, melt chocolate.

Definition: A gel is a sol in which the solid particles are meshed such that a rigid or semi-rigid mixture results. Examples: Fruit jelly is an example of a gel. Cooked and cooled gelatin is another example of a gel. The protein molecules of gelatin crosslink to form a soid mesh which contains pockets of liquid.

Some of the examples of gels are curd, cheese, butter, etc. Emulsion: These are the type of colloidal solution in which both the dispersed phase and the dispersed medium are in their liquid state. Some of the examples of emulsion are milk, cold cream, oil in water, etc.

It is basically when one liquid is consistently dispersed all through another liquid. Since, in Soap dispersion medium is liquid and dispersed phase is gas. And after going through the classification of colloidal solution as written above, we can simply conclude that Soap is an example of Foam.

A gel is a colloidal system in which the dispersed phase is liquid and the dispersion medium is solid. e.g. when warm sol of gelatin is cooled, it sets to a semi-solid mass which is a gel. Jellies, jams, curd, butter, shoe polish, etc. are gels.

Cheese is an example of gel because it’s a colloid.

Examples of Foam Examples of foams formed by gases in liquids include whipped cream, fire retardant foam, and soap bubbles. Rising bread dough may be considered a semisolid foam. Solid foams include dry wood, polystyrene foam, memory foam, and mat foam (as for camping and yoga mats).

Types of colloids:

Other examples of thermosensitive hydrogels are collagen, agarose, hyaluronic acid, poly(organophosphazenes), and chitosan [58, 59] (Figure 14).