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Earth & Space
vocab
| Question | Answer |
|---|---|
| photosphere | 1st layer of suns atmosphere |
| vent | opening of a volcano |
| plate tectonics | the theory that continates drift on the lithosphere |
| biosphere | zone of life extends from ocean floor to high atmosphere |
| Equinox | noon sun overhead at the equator |
| pangea | supercontinate; Alfred Wegener - came up with the theory. Was whole 250 million years ago, 200 million years ago : Laurasia and Gondwanaland |
| sea-floor spreading | mid ocean ridge is a huge crack running through the Atlantic Ocean. Lava is pushed upward creating new crust |
| Eclips | planet passes between sun and another body causing a shadow |
| umbra | shadow zone where light is completly blocked |
| penumbra | partial shadow where some light is blocked |
| monocline | one bend, one side of bend is higher that the other |
| shear stress | the pushing of rocks in different horizontal directions |
| tension | stretching or pulling apart of rocks |
| compression | squeezing together of rocks |
| tsunami | earthquake moves ocean floor move causing a big wave |
| Lateral Fault | shear stress, little to no up and down movement |
| Light year | distance light travles in 1 year |
| syncline | downward buldge |
| lithosphere | outer zone, cool and rigid |
| seismic waves | durring an earthquake potential energy turns to kinetic energy |
| anticline | fold produce upward buldge |
| volcano | opening in crust that has released lava and molten rock |
| asthenosphere | hot and semi liquid (earth) |
| Moho | sudden increase in volosity of a seismic wave |
| geologic time | the war to measure time for earth because it has been around so long |
| weathering | rock is broken into smaller particals |
| Erosion | small particals are taken away by wind water ice and gravity |
| zenith | highest point of the sky |
| deposition | building up of eroded particals / sedimates |
| fossils | past organisms that have left evidence of existence in rock |
| solstice | noon sun is overhead at the tropics |
| crust | outermost layer of Earth |
| mantle | middle layer of Earth |
| Lava | magma that reaches earths surface |
| Earth quake | movement of earth's crust occurs when plates shift and releases stored or potential energy |
| Epicenter | Point on earths surface directly above focus |
| core | center layer of earth |
| control | factor that is the same in an experiment |
| normal fault | hanging wall moves downward in relation to the footwall |
| reverse fault | stress from compression hanging wall moves upward in relation to footwall |
| composite volcanoes | contains alternate layers of volcanic debris and lava |
| galaxy | collection of stars, nebulae, gases, dust and planets |
| supernova | explosion of a star |
| nebula | cloud of gas and dust where stars are boorn |
| magnitude | the brightness of a star |
| shild volcanoes | flat top runny lava |
| cinder cone volcanoes | forms from explosivove eruptions |
| Doppler Effect | the apparent change in wavelength due to objects movement |
| latitude | Lat-fat same direction as equator |
| Electromagnetic Spectrum | all types of electromatic wave energy from low to high frequency |
| bioms | 6 major life zones |
| crater | hollowed out area surrounding the vent |
| comet | chunck of ice travles around sun, elliptical orbit |
| orbit | The path a body follows as it revolves around another |
| revolution | movement of one body around another |
| solar system | earth and other planets |
| parallax | the apparent change in the position of an object caused by change in position of the observer |
| convection | the circular flow due to the heating and coolin in earths mantle |
| asteroids | small irregular shaped solid bodies, revolve around sun |
| corona | outer layer of suns atmosphere |
| equator | equidistant from poles |
| focus | area along a fault where rocks first bread and move where earthquake starts |
| crater | circular indentation in the moon created by meteorites |
| axis | the lene that extends through earth north and south pole |
| rotation | spinnein of earth on its axis |
| deformation | changes in the shape and structure of earths crust |
| fault | fracture in the earths crust where movement has occured |
| chromosphere | 2nd layer of suns atmosphere |
| kilogram | SI unit of mass |
| density | measure how much matter in a given volure |
| meteor | the light resulting from entry of atmosphere - shooting star- |
| meteoride | chunk of rock or metal smaller than asteroid |
| meteorite | when a meteoroid does not completley burn up in atmosphere hitting earth |
| Scientific Method | Steps:Observe, Hypothesis, Record, Analyze, Repeat |
| Mesosphere/Mantle | Solid and rigid iron and magnesium; makes up 82 % volume and 68% of earths mass |
| Outer Core | liquid, molten iron, source of magnetic field |
| Inner Core | High pressure, high density, high temp. |
| Time Zones | divides Earth into 24 time zones, each time zone is 15 degrees wide. Starts at the prime meridian @ Greenwich england. there are 4 time zones on continental U.S. Latest is Eastern Time, then central, then Mountain and Pacific time. |
| What is the Latitude of the North Pole, Equator and South Pole | North pole - 90 degrees north, Equator 0 degrees Lat. and the South Pole is 90 degrees South Lat. |
| Convergent Boundaries | where two plate boundaries collide |
| divergent boundaries | where two plates move away from each other |
| transformant boundaries | where two plates slide in opposite directions beside each other |
| thrust fault | where the hanging wall rides up and over the footwall as a result of compression |
| daughter theory | piece of Earth split off to form the moon |
| sister theory | the Earth and the moon formed from gas and dust during the formation of the solar system |
| Capture Theory | moon formed elsewhere and was captured by Earth's gravity as it passed |
| Impact theory | Most accepted, large impact knocked a large quantity of material from Earth |
| perigee | the moon's closest point to Earth |
| apogee | the farthest point away from the earth the moon is |
| What are the phases of the Moon? | New Moon, Waxing Crescent, First Quarter, Waxing gibbous, Full moon, Waning gibbous, Last Quarter, Waning crescent |
| Lunar Eclips | Sun - Earth - Moon |
| Solar Elcips | Sun - Moon - Earth (only in certain places) |
| Nuclear Fusion | sun's energy maker, hydrogen turns to helium, biproduct energy |
| inertia | the tendency of an object to remain at rest or in motion until acted upon by an external force |
| What are 3 things that prove continental drift | Fossil Evidence, rock evidence, Glacier evidence |
| Isostasy | the balance of gravity and buoyancy in the earth's crust |
| What's the difference between Richter scale and Mercalli scale? | Richter is more scientific - amt. of ground movement. Mercalli - more on visual effects of the quake |
| Subduction | the process of one plate moving under another |
| What are the 9 planets in order from sun out? | Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune ; My Very Energetic Mother Just Served Us Nachoes |
| Maria | regions of bright and dark - broad flat plains on the moon |
| Rilles | long narrow valleys - on the moon |
| highlands | mountainous terrain on the surface |
| core of the sun | 140,000 km thick, hottest part of the sun, lots of pressure |