Solids have definite shapes and volumes because their atoms and molecules are held together firmly by the strong inter-molecular forces. At low temperatures, the kinetic energy in the solid is usually not enough to overc... More » Science Chemistry States of Matter

Solids maintain a definite shape and volume because their atoms are tightly bound to each other. Solids can be crystalline or amorphous. In crystalline solids, such as ice and metal, atoms are arranged in a regular geome... More » Science Physics Motion & Mechanics

The state of matter called a solid does have a definite volume and shape. This is one of the properties that defines a solid. Some other properties pertaining to a solid are that the molecules within a solid are packed t... More » Science Chemistry States of Matter
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Gases and plasmas have neither definite shapes nor definite volumes. They both expand to fill available space, and can be reshaped by their containers. Liquids have definite volume, while solids have both definite shape ... More » Science Chemistry States of Matter

Most solids, liquids and gases expand when they are heated because the molecules that make up the substance move more rapidly, which puts more distance between each of the molecules. This property of matter hold true irr... More » Science Chemistry States of Matter

A crystalline substance is a substance where the molecules, atoms or ions that compose it are in an extremely regular pattern in three dimensions. This regular pattern is called the crystal's lattice. Whether a substance... More » Science Chemistry States of Matter

Gas is easier to compress than liquid because liquid must fit within a fixed volume, while gaseous molecules and atoms can spread out an infinite distance. The comparatively greater space available between gas molecules ... More » Science Chemistry States of Matter