Get Inside the Science:
- Salmonella: A group of bacteria that can cause typhoid fever, food poisoning, gastroenteritis, and other illnesses. People become infected mostly through contaminated water or foods, especially meat, chicken and eggs.
- Stainless steel: The universal name for a number of different steels used primarily for their anti-corrosive elements. These compounds are used in everything from kitchen utensils to the Gateway Arch in St. Louis.
- Copper: A reddish brown metal which has been used for thousands of years by many cultures. The metal is chemically related to silver and gold and is a good conductor of heat and electricity.