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.
Observe seasonal patterns of sunrise and sunset to describe the relationship between the number of hours of daylight and the time of year (e.g., more hours of daylight during summer as compared to winter).