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:
The review focuses on early childhood education (ECE) interventions (curricula, practices, and therapies) designed for use with 3- to 5-year-old children who are not yet in kindergarten and older children who are attending a preschool program.