Benzene is a colorless liquid with a sweet odor. It evaporates into the air very quickly and dissolves slightly in water.
In psychology the term, early childhood is usually defined as the time period from the age of two until the age of six or seven years. There are three simultaneous development stages:
Home Schools Age for Starting School. Age for Starting School. In a sequence which has been phased in over a series of years, a child must be five years of age on or before September 1st to begin kindergarten. A child must be four years of age on or before September 1st to be considered for prekindergarten. A child must be six years of age on or before September 1st to begin first grade. The State Board's action to phase-in the changes of date of entry concluded a process that began December, 2001.