Because children are intermittently active (they do not naturally engage in continuous activities, such as jogging), we need to make sure that they have multiple periods of moderate activity that are at least 10 to 15 minutes in duration each day (Corbin & Pangrazi, 1998).
Buff is the pale yellow-brown colour of the un-dyed leather of several animals.As an RYB quaternary colour, it is the darker colour produced by an equal mix of the tertiary colours citron and russet.uff is the traditional colour of the U.S. Army Quartermaster Corps. The U.S. Army Institute of Heraldry specifies a buff tincture for certain coats of arms.
The word buff originally meant âa buffalo or other type of wild oxâ, and buff leather, often shortened to simply buff, was leather made from the hide of such an animal. This leather was very strong, with a pale yellowish-beige colour.