- Fort Ebey State Park (Wikipedia)
Fort Ebey State Park is a public recreation area occupying the site of former Fort Ebey on the west side of Whidbey Island, five miles (8.0 km) west of Coupeville in Island County, Washington, United States. The state park covers 651 acres (263 ha) overlooking the Strait of Juan de Fuca and lies within the Ebey’s Landing National Historical Reserve. It is managed by the Washington State Parks and Recreation Commission.
- Calcium (Wikipedia)
Calcium is a chemical element; it has symbol Ca and atomic number 20. As an alkaline earth metal, calcium is a reactive metal that forms a dark oxide-nitride layer when exposed to air. Its physical and chemical properties are most similar to its heavier homologues strontium and barium. It is the fifth most abundant element in Earth’s crust, and the third most abundant metal, after iron and aluminium. The most common calcium compound on Earth is calcium carbonate, found in limestone and the fossilised remnants of early sea life; gypsum, anhydrite, fluorite, and apatite are also sources of calcium. The name derives from Latin calx “lime”, which was obtained from heating limestone.