Continental Drift - The hypothesis that Earth’s continents move over geologic time relative to each other, proposed by Alfred Wegener in 1912, Alfred Wegener - A German meteorologist and geophysicist who proposed the theory of continental drift in 1912, Tectonic Plates - Large, rigid pieces of Earth’s lithosphere that move and interact at their boundaries, causing geological activity, Pangaea - A supercontinent that existed during the late Paleozoic and early Mesozoic eras, which began to break apart about 200 million years ago, Convection Currents - Circular movements of molten rock within the Earth’s mantle caused by the heat from the core, driving the movement of tectonic plates, Crust - The outermost layer of Earth, composed of solid rock, which includes both continental and oceanic crust, Mantle - The layer of Earth located between the crust and the core, composed of silicate rocks rich in magnesium and iron, Core - The innermost part of Earth, consisting of a solid inner core and a liquid outer core, primarily composed of iron and nickel, Fossil Evidence - Remains or traces of ancient organisms found in different continents, supporting the theory of continental drift by showing that these continents were once connected, Continental Puzzle Fit - The observation that the coastlines of continents such as South America and Africa appear to fit together like pieces of a jigsaw puzzle, suggesting they were once joined, Mountain Ranges - Long chains or groups of mountains formed by tectonic forces, often found at the boundaries of tectonic plates, Tillite - A type of sedimentary rock formed from glacial till, providing evidence of past glaciations and supporting the theory of continental drift, Oceanic Plate - A tectonic plate at the bottom of the oceans, primarily composed of basalt and denser than continental plates, Continental Plate - A tectonic plate that forms the continents, primarily composed of granite and less dense than oceanic plates, Lithosphere - The rigid outer layer of Earth, consisting of the crust and the uppermost part of the mantle, Asthenosphere - The semi-fluid layer of the mantle beneath the lithosphere, which allows tectonic plates to move,

Continental drift

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