Although much has been written about developmentally appropriate practices applied to indoor environments for children, very little has been done to consider the description of children at various age levels and the kinds of resources that should be provided in outdoor play settings.
One gram is one-thousandth of a kilogram. A kilogram is defined as the mass of a particular cylinder made out of iridium and platinum. This cylinder is kept in Sevres, France.
The metric units most used to express mass are the kilogram and the  gram. A kilogram is equal to 1000 grams. A kilogram also is  equivalent to 2.2 pounds. Other metric unitâ¦s of mass are the  milligram and the centigram.