Addition Polymers. Addition polymers such as polyethylene, polypropylene, poly(vinyl chloride), and polystyrene are linear or branched polymers with little or no cross-linking. As a result, they are thermoplastic materials, which flow easily when heated and can be molded into a variety of shapes.
According to what I have read a stalk of celery is the whole bunch....a rib, is one of the many that make up the stalk....so many of the recipes are really wrong when th â¦ ey say one stalk....you would have way too much celery.
McCormickÂ® Celery Seed. Celery seed shall be the dried fruit of Apium graveolens L. The light brown to brown seeds have a characteristic aroma and warm, bitter taste. Celery seed is the dried fruit (seed) of a wild variety of celery called smallage which grows to a height of about 18 inches. It is not derived from the vegetable of the same name. The seeds seldom exceed 1 mm in diameter. (Not rated yet) Rate this product.