Question | Answer |
a scientist who studies the forces that make and shape earth | Geologist |
the study of the planet earth | geology |
a vibration that travels through earth carring the energy released during an earthquake | seismic wave |
the layer of hot solid material between earths crust and core | mantle |
the soft layer of the mantle on which the lithosphere floats | asthenoshere |
a ridgid layer made up of the uppermost part of the mantle and the crust | lithosphere |
the most amount of mass in a space given | density |
the name of the single landmass that broke apart 200 million years ago and gave us the continents we have today | pangaea |
a plae where new ocean floor forms as a result of volcanic eruptions and molten lava moving up through rifts | mid-ocean ridge |
a deep valley that forms where two plates move apart | rift valley |
a long, narrow steep-sided depressiion in the ocean floor where one crustal plate is forced beneath another | trench |
a divice that determines the distance of an object under water by recording echoes of sound waves | sonar |
the process by which oceanic crust sinks beneath a deep ocean trench and back intothe mantle at a convergent plate doundaries | subduction |
the theory that pieces of earth.s lithosphere are in contant motion | plate tectonics |
a break im earth's crust where slabs of rock slip past each other | fault |
the point on the earth's surface directly above an earthquake's focus | epicenter |
a divice that records ground movements caused by seismic waves as they move through earth | seismograph |
a scale that rates seismic waves as measured b a particular type of seismograph | Richer scale |
a larger wave produced by an earthquake on the ocean floor | tsunamis |
melted rock deep within the earth | magma |
magma that emerges on the surface of the earth | lava |
a major belt of volcanos that rims the pacific ocean | ring of fire |
a bowl shaped area that forms around a volcanos central opening | crater |
a hot, fast moving type of lava that hardens to form a smooth ,ropelike coils | pahoehoe |
a slow-moving type of lava that hardens to form rough chunts | aa |
volcano that does not show sighs of erupting in the near future | dormat |
volcano that is unlikly to erupt again | extinct |
a fountain of water and steam that builds up pressure underground and erupts at regular intervals | geyser |
energy from water and steam that has been heated by magma | geothermal energy |
not formed from living things or the remains of living things | inorganic |
a naturally occuring, inorgani solid that has a crystal structure and a definite chemical composition | mineral |
a solid in which the atoms are arranged in a pattern that repeats again and again | cystal |
a substance composed of a single kind of atom | element |
substance in which two or more elements are chemically joined | compound |
a scale ranking ten minerals from softest to hardest | mohs hardress scale |
rock that cntains a metal or economicall useful mineral | ore |
the observation or study by close examination and systematic inquire | investigation |
steps tooken to solve a problem in science | scientific method |
prediction or statement that can be tested | hypothisis |
factor that is changed in an experiment in order to study changes in the dependant variable: also called the manipulated variable | independent variable |
fsctor that is being measured in an experiment(the results) also called the responding variable | dependent variable |
factors that stay the same during the experiment;also called controlled variable | constant |
sample that is treated like the other experiment groups exsept the inependant(manipulated) variable is not applied | control |
an experiment in which only one variable is manipulated | controlled experiment |
the test of a hypothesis under cotrolled conditions | experiment |
a cumulative body of observation | empirical evidence |
tentative schemes or structures that correspond to real objects, events or classes of events, and have explanotory power | scientific modle |
a well tested explanation for a wide range of observations or experimental results | theory |
a statement hat describes what scientist expect to hapen every time under a particular set of conditions | law |