for Teachers for Schools for Companies. Sulfur is a major mineral of the body that is part of certain amino acids and helps with many bodily processes. Learn what happens if you do not get enough of the mineral through your diet and what happens, if anything, when too much is ingested in this lesson.
Special-effect contacts (also called theatrical contact lenses, costume contacts and gothic contact lenses) are popular for Halloween and costume parties. These lenses typically are sold separately in individual glass vials and can range in price from $50 to more than $200 per lens.
Daily disposable contacts. Daily disposable lenses are designed to be discarded after a single use. These lenses typically are sold in boxes of 30 lenses and often are sold at a retail price of $20 to $30 per box. Using this per-box estimate, your annual lens cost for daily disposable contacts is $480 to $720.