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:
From before birth to age 4, an infant 's brain grows explosively. In fact, your child's brain has reached 90% of its adult size before kindergarten. This period of great growth provides an ideal window of opportunity for learning. But the brain doesn't stop developing at age 4. It continues to organize and restructure throughout childhood and on into early adult life, becoming more complex. Unfortunately, knowing about the brain's early growth has prompted many parents to panic about their child's IQ or push their kids into primo preschools..