User:Atcovi/Science/Notes/Warmups: Earth Questions


 * See User:Atcovi/Science/Notes/Warmups: Earth Questions 2

Questions
DATE: 3/14/2017 [-Atcovi (Talk - Contribs) 22:17, 14 March 2017 (UTC)]
 * 1) The outermost layer of the Earth is the crust
 * 2) The crust is 5km to 100km thick.
 * 3) There are two types of crust: Continental and Oceanic.
 * 4) The layer of the Earth between the crust and the core is the mantle.
 * 5) No one has ever visited the mantle. Scientists must draw conclusions about the mantle from observations made on the Earth's surface.
 * 6) The layer of the earth that extends from below the mantle to the center of the Earth is core.
 * 7) Scientists think that the Earth's core is made mostly of iron.
 * 8) The Earth is divided into 5 physical layers: Lithosphere, Asthenosphere, Mesosphere, Outer Core, and Inner Core.
 * 9) Pieces of the lithosphere that moved around on top of the asthenosphere are called tectonic plates.
 * 10) When an earthquake happens, vibrations called seismic waves are produced.
 * 11) The speed of seismic waves depends on the density and composition of the material.
 * 12) The part of the Earth that is molten is the outer core.
 * 13) The part of the earth on which the tectonic plates move is the asthenosphere.
 * 14) Alfred Wegener was the scientists that looked at the continents and stated that they looked like they fit together.
 * 15) Continental Drift is the hypothesis that states that the continents once formed a single landmass, broke up and drifted to their current locations.
 * 16) Fossils of plants/animals found on continents that are on different sides of the oceans is one evidence for continental drift.