1. A shiny substance that is used to make jewelry. 2. A yellowish green substance that is used to kill bacteria. 3. A substance that gets hot easily. 4. A material that is used for electrical wiring. 5. A very strong material used for construction. 6. Shiny and easy to shape but rusts when wet. 7. Dull in appearance but ca be made into computer chips. 8. Difficult to shape and shatter even when struck with hammer. 9. Elements that make up 96% mass of the human body. 10. Expands when heated and widely used in thermometers.