Solids can be many different shapes. However, solids are said to have “definite shapes." This means that the shape of a solid is consistent and does not take on the shape of the container in which it is placed.
Solids have definite shapes because their particles have very little kinetic energy. Kinetic energy is the energy of motion. Thus, the particles that make up solids do not move much. This enables the shape of a solid to be maintained.
A solid is one of three states of matter. The three states of matter are solids, liquids, and gases. The states of matter are often defined by their shapes and volumes, as described below.
- Solids are said to have definite shapes and definite volumes.
- Liquids are said to take the shape of the containers (indefinite shape) and a definite volume.
- Gases are said to have indefinite shapes and indefinite volumes.
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