The water then exists in the solid phase as ice. In spring, when the temperature rises, the ice melts and changes from the solid to the liquid phase. The phase transition occurs as a result of energy exchange with the environment. The melting of ice to water can be easily measured by differential scanning calorimetry.
The price of care for a 4-year-old is less than for an infant, and the cost of care for a school-age child is even less than that. But even home daycare for a school-aged child â the cheapest form of care â costs $9,159 per year in D.C., $5,366 per year in Maryland, and $4,938 per year in Virginia.
As for the cost of child care, âitâs one of those âgulpâ things,â Best said. Paying for daycare is a barrier many families face, Rosenleaf said. On average, it costs $500 to $600 per month for a preschool age child to attend daycare. For an infant, it costs $600 to $700 a month, Rosenleaf said. âThe reason itâs high is you can only have six kids for one adult (four if itâs infants), itâs not like school where you can have 20 kids per adult.