WGU C165 Unit 5: Earth & Sky. Top Exam Questions with accurate answers, 100% Accurate, rated A+

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WGU C165 Unit 5: Earth & Sky. Top Exam Questions with accurate answers, 100% Accurate, rated A+ Newton's Law of Universal Gravitation - ✔✔-The law that says every object in the universe attra... cts every other object, and that the force is affected by mass and distance: the greater the mass of an object, the greater the attraction; the farther apart the objects, the weaker the attraction. Nebula - ✔✔-a cloud of gas and dust in space Nuclear Fusion - ✔✔-The process by which two or more small nuclei fuse to make a bigger nucleus Star - ✔✔-A ball of hot gas, primarily hydrogen and helium, that undergoes nuclear fusion. Galaxy - ✔✔-a system of millions or billions of stars, together with gas and dust, held together by gravitational attraction. Milky Way Galaxy - ✔✔-the galaxy containing our solar system Orbit - ✔✔-The path of an object as it revolves around another object in space Solar System - ✔✔-sun, planets, and all the other objects that revolve around the sun Planets - ✔✔-a celestial body moving in an elliptical orbit around a star. Asteroids - ✔✔-a small rocky body orbiting the sun Inner Planets - ✔✔-the planets closest to the Sun: Mercury, Venus, Earth, and Mars outer planets - ✔✔-Jupiter, Saturn, Uranus, & Neptune. Called Gas Giants. Moons - ✔✔-Smaller objects that orbit a planet Comets - ✔✔-a celestial object consisting of a nucleus of ice and dust and, when near the sun, a "tail" of gas and dust particles pointing away from the sun. Axis of Rotation - ✔✔-an imaginary line about which a turning body such as earth rotates Earth's Tilt - ✔✔- Crust - ✔✔-Earth's outermost layer. Mantle - ✔✔-The layer of hot, solid material between Earth's crust and core. Outer Core - ✔✔-A layer of molten iron and nickel that surrounds the inner core of Earth Inner Core - ✔✔-A dense sphere of solid iron and nickel at the center of Earth Physical weathering - ✔✔-the mechanical breakdown of rocks and minerals Chemical Weathering - ✔✔-The process that breaks down rock through chemical changes Erosion - ✔✔-The process by which wind, water, ice, or gravity transports soil and sediment from one location to another Deposition - ✔✔-Process in which sediment is laid down in new locations. Wind Erosion - ✔✔-when the wind picks up dirt and dust and moves it from one place to another Sand Dune - ✔✔-A hill of sand, made and shaped by wind River Meander - ✔✔-large bend in the river, formed in the middle and lower courses, have both shallow and steep sections River Valley - ✔✔- Delta - ✔✔-A landform made of sediment that is deposited where a river flows into an ocean or lake Glaciers - ✔✔-Large areas of slow moving ice Minerals - ✔✔-A solid inorganic substance of natural occurrence. sedimentary rock - ✔✔-A type of rock that forms when particles from other rocks or the remains of plants and animals are pressed and cemented together Igneous Rock - ✔✔-a type of rock that forms from the cooling of molten rock at or below the surface Metamorphic Rock - ✔✔-A type of rock that forms from an existing rock that is changed by heat, pressure, or chemical reactions. Rock Cycle - ✔✔-A series of processes on the surface and inside Earth that slowly changes rocks from one kind to another geologic time scale - ✔✔-A record of the geologic events and life forms in Earth's history. Eons - ✔✔-The largest division of time on the geological scale. Eons (Names) - ✔✔-Hadean, Archean, Proterozoic, Phanerozoic Eras - ✔✔-one of several subdivisions of the time between the Precambrian and the present Eras (Names) - ✔✔-Paleozoic, Mesozoic, Cenozoic Analog - ✔✔-A continuous method of representing i [Show More]

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