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.
plunk (plÅ­ngk) also plonk (plÅngk, plÅ­ngk) v. plunked, plunkÂ·ing, plunks also plonked or plonkÂ·ing or plonks v.tr. 1. To throw or place heavily or abruptly: plunked the money down on the counter. 2. To strum or pluck (a stringed instrument). v.intr.