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51 Cards in this Set

  • Front
  • Back
a living thing
external stimulus
a change in an organism's surroundings that causes the organism to react
internal stimulus
a change from within an organism, such as hunger and thirst, that causes an organism to respond
an action or change in behavior that occurs as a result of a stimulus
a change in an organism's surroundings that causes the organism to respond
a break or crack in the Earth's lithosphere along which rocks move
a bend in rock that forms where part of Earth's crust is compressed
igneous rock
rock that forms from cooling of molten rock at or below the surface of Earth
metamorphic rock
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
sedimentary rock
rock that forms when particles from other rocks or the remians of plants and animals are pressed and cemented together
pushing up of Earth's crust by forces within Earth; such as when two plates are moving towards each other
the change from the gaseous to the liquid state of matter; such as water vapor changing into water
to change from a liquid or a solid into a vapor or gas; such as water evaporates when it is heated
forms of water such as rain, snow, hail, or sleet that fall from clouds and reach Earth's surface
water cycle
continous process where water moves from the earth's surface to the atmosphere and back passing through living and non-living parts of the environment
water vapor
the invisible, gaseous form of water
an underground layer of rock or soil that holds water
ground water
water which is naturally found in the Earth which comes to the surface through wells or springs
characteristic of materials through which water does not easily pass, such as clay or granite
characteristic of materials such as sand and gravel which allow water to pass (flow) easily through them
movement of water across a land area
saturated zone
a layer of permeable rock or soil in which cracks and pores are completely filled with water
unsaturated zone
a layer of rocks and soil above the water table in which the pores contain air as well as water
water table
the top of the saturated zone, or depth to the groundwater in an aquifer
the land area that supplies water to a river system; separated by a divide
air masses
a huge body of air that has similar temperature, pressure, and humidity throughout
the mixture of gases that surrounds Earth. The outer most of the four spheres into which scientist divide Earth.
continental (air mass)
a dry air mass that forms over land
the area where air masses meet and do not mix
maritime (air mass)
a humid air mass that forms over oceans
polar (air mass)
a cold air mass that forms north of the 50 degree N.latitude & S. of the 50 degree S. latitude & has high air pressure
tropical (air mass)
a warm air mass that forms in the tropics and has low air pressure
object revolving around the sun that is too small to be a planet
asteroid belt
region of the solar system between the orbits of Mars and Jupiter, where many asteroids are found
a ball of ice and dustwhose orbit is a long, narrow eclipse
a meteroid that has hit the Earth's surface
a streak of light in the sky produced by the burning of a meteooid in Earth's atmosphere
a chunk of rock or space dust in space
a natural satellite that revolves around a planet
an object in space that orbits around a star; they do not generate heat and light
solar system
a large planetary system that consists of a combination of many smaller planetary systems ans objects
a huge object in space made of gas and giving off light and heat from nuclear reactions; such as the sun
a person specially trained to travel and work in space
to travel for the purpose of discovery
unmanned spacecraft designed to explore the solar system and transmit data back to earth.
A vehicle or device propelled by one or more rocket engines; such as a vehicle designed to travel through space
manned or unmanned vehicle, used especially in exploring the terrain of a planet and its satellites
any object that revolves around another object in space; natural or artificial
space shuttle
reusable spacecraft with wings for controlled descent in the atmosphere, designed to transport astronauts between Earth and an orbiting space station and also used to deploy and retrieve satellites
space station
large satellite equipped for humans; designed to orbit Earth for extended periods; serves as a base for exploration, conducting research, repairing satellites, ...