The 1918 flu pandemic, commonly referred to as the Spanish flu, was a category 5 influenza pandemic caused by an unusually severe and deadly Influenza A virus strain of subtype H1N1.
Project Lead The Way (PLTW) is an American nonprofit organization that develops STEM curricula for use by US elementary, middle, and high schools.
Definition of plat. 1  1 : a small piece of ground (such as a lot or quadrat) : plot. 2  2 : a plan, map, or chart of a piece of land with actual or proposed features (such as lots); also : the land represented.