In the arts, a medium is a material used by an artist or designer to create a work. -----------------------------------------------------...

the source or cause of a problem -----------------------------------------------------------------------------------------------------...

A type of glass formed when glass bottles are left on a lake or ocean shore for a long period of time. Waves and sand act as a natural tumb...

  to prowl or pry; go about in a sneaking, prying way ---------------------------------------------------------------------------------...

The apparent intersection of the earth and sky as seen by an observer ------------------------------------------------------------------...

equipment, apparatus, or furnishing used in or necessary for a particular activity  -----------------------------------------...

very satisfactory ---------------------------------------------------------------------------------------------------------------------...