A new model explaining this mysterious process suggests the core was created as dribs and drabs of iron percolated inward from Earth's lower mantle, according to a study published Oct. 6 in the journal Nature Geoscience. The mantle is the viscous, rocky layer between the crust and Earth's iron core.
Definition of flash card. : a card bearing words, numbers, or pictures that is briefly displayed (as by a teacher to a class) usually as a learning aid.
Flash gamesâgames created with or for the Adobe Flash runtimesâare everywhere. You can find them on game arcade sites such as Newgrounds.com, AddictingGames.com, and numerous others. There are dozens of game genres to choose from, including action, adventure, casino, puzzle, and role-playing, among others.