95 terms

5th Grade NC Science EOG Vocabulary Terms

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elevation
the height of land above sea level
erosion
the movement of weathered material
evaporation
the process by which a liquid changes into a gas
flood plain
flat land near the edges of rivers formed by mud and silt deposited by floods
evergreen
a tree that does not lose its leaves in the winter and stays green all year round
food chain
a diagram showing the flow of energy from organism to another
food web
a network of all the food chains in an ecosystem
force
a push or pull on an object
friction
a force that opposes the motion of objects that touch as they move past each other
front
where two air masses meet
fulcrum
a fixed point around which a lever pivots
fungi
molds and mushrooms which help to decompose dead organisms
gravity
the force that pulls objects toward the earth
groundwater
water held in rocks and soil below the surface
habitat
the place where an organism lives
herbivore
organism that obtains energy by eating only plants
high pressure system
generally brings clear skies and calm air or gentle breezes
humidity
the amount of water vapor in the air
hygrometer
measures humidity
inertia
the tendency of an object to resist any change in its motion
kinetic energy
energy in motion
potential energy
stored energy; energy an object has at rest
land breeze
movement of air from land to sea at night
sea breeze
movement of air from sea to land during the day
limiting factor
any factor in the environment that limits the size of a population
low pressure system
a weather system that usually brings cloudiness and stormy weather
meander
a looplike bend in the river
meteorologist
a scientist who studies weather
momentum
the product of an object's mass and its velocity
motion
an object's change in position
niche
an organism's role, or job, in its habitat
nimbus
rain cloud
omnivore
an animal that eats both plants and animals
organism
a living thing
permafrost
layer of permanently frozen subsoil in the tundra
photosynthesis
process by which plants use the sun's energy to convert water and carbon dioxide into sugars
abrasion
the grinding away of rock by other rock particles carried in water, ice, or wind
acceleration
a change in speed or direction
velocity
the speed and direction of a moving object
adaptation
a , inherited characteristic that increases an organism's chance of survival
air pressure
the weight of air pressing down on an area
anemometer
measures wind speed
balanced forces
equal forces acting on an object in opposite directions causing no movement
barometer
measures air pressure
biome
a large region characterized by a specific climate, and certain types of animal and plant communities
canyon
a deep valley with steep sides often carved from the earth by a river
carnivore
organism that eats animals for energy
cholorophyll
a green chemical in plant cells that allows plants to use the sun's energy for making food
cirrus
featherlike, wispy clouds that usually mean fair weather or a change in weather
climate
the average weather conditions in an area over a long period of time
cold front
forms when cold air moves under warm air which is less dense and pushes air up (produces thunderstorms heavy rain or snow)
community
all of the populations of different species that live and interact in an area
condensation
the process by which a gas changes to a liquid
conifer
an evergreen, cone-bearing tree
cumulus
clouds that look like fluffy, rounded piles of cotton and usually mean fair weather
dam
a structure built to across a river to control water flow
deciduous
trees which lose their leaves every year
decomposer
organism that breaks down the wastes or remains of other organisms
delta
a triangular area of land formed from deposition at the mouth of a river
desert
An extremely dry area with little water and few plants
ecosystem
All the living things and nonliving things that interact in an area
population
group of the same kind of organism living in a certain place
position
the location of an object
precipitation
rain, snow, sleet, or hail
predator
animal that hunts and eats other animals
prey
animal hunted or caught for food
producer
an organism that makes its own food
run off
water from rain or melted snow that flows along the earth's surface and into larger bodies of water
scavenger
a carnivore that feeds on the bodies of dead organisms
sediment
small, solid pieces of material that come from rocks or living things
slope
any land whose surface gradually rises in a general direction
speed
distance divided by time
stratus
a flat, low-lying cloud that covers the sky like a blanket; can produce rain or snow
transpiration
loss of water from a plant through its leaves
tributary
a stream or river that flows into a larger river
troposphere
the lowest level of the atmosphere, where all weather occurs
unbalanced force
two or more forces that are not equal and opposite of one another; causes change in motion
valley
lower land between hills or mountains
water cycle
the continuous cycle of the transfer of water through an ecosystem, which involves evaporation, transpiration, condensation, and precipitation
vapor
gas state of water
weather
the condition of the earth's atmosphere at a particular time and place
glacier
a slowly moving mass of ice
contour map
a map that shows elevation using lines
pulley
a simple machine that consists of a wheel over which a rope, chain, or wire moves
lever
a simple machine consisting of a rigid object that pivots about a fixed point
inclined plane
a simple machine consisting of a flat surface with one end higher than the other
taiga
a region of evergreen, coniferous forest below the arctic and tundra regions
tundra
an extremely cold, dry biome
oxbow lake
a crescent-shaped lake that is formed when a meander of a river is cut off from the main channel
rainforest
an area of lush vegetation and year-round rainfall
fertile
rich in material needed to grow healthy plants
weathering
the breaking down of rocks into smaller pieces
deposition
process in which sediment is dropped, laid down in new locations
consumer
An organism that obtains energy by feeding on other organisms.
simple machine
one of the six basic types of machines, which are the basis for all other forms of machines