Silver is a chemical element with the symbol Ag and atomic number 47. It is a soft, white, lustrous transition metal. Silver has long been valued as a precious metal, and it is used to make ornaments, jewelry, high-value tableware, and currency coins. Here are some key points to study about silver:
Silver does not react with air, even at high temperatures, but it reacts with sulfur compounds to form black silver sulfide, which tarnishes the surface.
The student demonstrates an understanding that all organisms are linked to each other and their physical environments through the transfer and transformation of matter and energy by identifying and sorting examples of living and non-living things in the local environment. (L)