Preschool age may sound too early to start learning about science, but research has shown that preschoolers are intellectually and developmentally ready to understand basic scientific concepts.

He or she will want to be certain that your baby is physically and developmentally ready.

Between the ages of 4 and 6 months, most babies are developmentally ready to get their first taste of solid foods.

The reason is that many children start school before they are developmentally ready.

Children should be taught to swim as soon as they are developmentally ready - usually by age 5.

This lowers the age at which people are developmentally ready to begin studying an instrument.

The children who are age-appropriate for the grade may be exposed to social situations that they are not developmentally ready for.

"I wished I'd asked myself if they were developmentally ready," she told me.

"They're developmentally ready to handle the full day," she said.

In my experience, parents are questioning whether their child is developmentally ready for the kindergarten experience.