"Eight insulated concrete forms at a commercial construction site. The forms are stacked, concrete is poured inside and the walls provide insulation and support for the concrete, forming a wall.
"Close-up of infant swing seat in playground setting in the background.[url=http://www.istockphoto.com/file_search.php?action=file&lightboxID=3852315][img]http://www.garyalvis.com/images/familyLife.jpg[/img][/url]