Exploring the Elements

Sulfur has been known since ancient times, used by Indians, Greeks, and Egyptians. This distinctive and often smelly element was sometimes called brimstone. Sulfur is present in garlic, a skunk''s defensive spray, and is also responsible for the horrible smell of rotten eggs. Sulfur also lends strength to feathers, adds a tang to grapefruit, and is an important ingredient of fertilizer. Readers will explore sulfur from A to Z: from how it''s used in matches, to how it''s a critical macronutrient for every living body.