States of matter:
Solid is one of the three fundamental states of matter, others being gas and liquid. The particles within are solid are closely compacted and vibrate, bouncing off of each other to create energy. A solid holds a firm solid shape and volume. A solid is characterized by the tight locking of atoms into rigid structures that resist deforming by outside forces. An example of a solid would be; Gold, Brass, Wood, Sand, Rocks and Ice is also a solid, this is a solid that can change state very quickly and obviously. It can be melted into a liquid at room temperature and can evaporate into a gas when heated even more.
Liquids are substances that flow freely and are of constant volume. Molecules in a liquid have too much thermal energy to be bound by these forces and move about freely within the liquid. They cannot escape the liquid easily. The molecules of a liquid have greater cohesion than those of a gas. Examples of liquids are water, oil and juice.
Life probably started in such a liquid environment and water is the major component of living things. Humans are over 60 percent water. At room temperature, water is found in a liquid state. This is because of the tiny, weak hydrogen bonds which, in their billions, hold water molecules together for small fractions of a second. Water molecules are constantly on the move. If they are moving fast enough they become a gas.
Gas particles move freely and can change shape to suit the surroundings. They are well separated and have no regular arrangement. The particles vibrate and move freely at high speeds. Gases are found all around us, Oxygen in the environment which we breathe in, Entonox is a gas which is used as a pain releif often given to women in labour, the effects of...