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:
Children's and parenting health centre. Childhood milestones age 12. At 12, your child will often seem very grown up, but may revert to childish behaviour at times. This can be a difficult period for parents trying to strike a balance between encouraging independent, responsible behaviour and continuing to offer security, guidance and protection.