DENSITY Density is a measure used by the physics and chemistry to determine the amount of mass contained in a given volume. Science provides two types of densities. The actual density or measure the mass per unit volume and is generally understood by density. Is calculated using the following formula: Density = mass / volume.
TEMPERATURE
The temperature is a quantity referring to the common notions of hot or cold. Is defined as a scalar quantity related to the internal energy of a thermodynamic system defined by the zeroth law of thermodynamics.
ODOR
The smell is an intrinsic property of matter and is defined as the feeling resulting from the receipt of a stimulus by the olfactory sensory system. The term "smell " refers to a complex mixture of gases, vapors, and dust, where the composition of the mixture directly influences the perceived odor by the same receptor.
COLOR
The color is a visual perception. It is a physical-chemical phenomena associated with countless combinations of light, associated with different wavelengths in the visible region of electromagnetic spectrum and as a feeling that allows us to distinguish objects with greater accuracy.
TASTE
The flavor is the impression that we cause a food or other substance, and is determined mainly by chemical sensations detected by the taste (palate) as well as olfaction (smell).
BOILING POINT
define the boiling point as the temperature at which the transition from liquid to gaseous phase. In the case of pure substances at a fixed pressure, the process of boiling or vaporization occurs at a single temperature, as heat is added the temperature remains constant until all liquid has boiled.
MELTING
The melting point is the temperature at which matter changes from solid to liquid, ie melted.
For the purpose of casting a metal melt is called (we can not confuse it with the melting point).
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