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General Review
All the green Holt and science and technology green book
53
Science
5th Grade
12/12/2010

Additional Science Flashcards

 


 

Cards

Term
Abiotic
Definition
nonliving part of an ecosystem
Term
biodiversity
Definition
the number and variety of organisms in an area
Term
biome
Definition
a large region characterised by a type of climate and type of organisms
Term
biosphere
Definition
the part of earth where life exists
Term
biotic factors
Definition
living factors in the enviroment
Term
carnivore
Definition
an organism that eats animals
Term
carriyng capacity
Definition
the largest populaion that an enviroment can support
Term
coevolution
Definition
the evolution of two species that is to mutual influence
Term
combustion
Definition
the burning of a substance
Term
commensalism
Definition
a relationship in which one organism is :) and the other is unaffected :l
Term
community
Definition
all of the populations of species that live in the same habitat
Term
condensation
Definition
the change of state from gas to liquid
Term
conservation
Definition
the preservation/wise use of natural resources
Term
consumer
Definition
an organism that eats other organisms or organic matter
Term
decomposer
Definition
an organism that gets its energy by the breaking down the remains of death organisms
Term
decomposition
Definition
the breakdown of substances into simpler molecular substances
Term
desert
Definition
an area that has litle or no plant life, long periods without rains and extreme temperatures
Term
ecology
Definition
the science that studies the interaction of living organisms
Term
ecosystem
Definition
a community of organisms and there abiotic enviroment
Term
energy pyramid
Definition
a diagram that shows an ecosystem´s loss of energy which results as energy passes through the ecosystem´s food chain
Term
evaporation
Definition
the change of a substance from liquid to a gas
Term
food chain
Definition
the pathway of energy transfer through various stages as result gives the feeding patterns of a series of organisms
Term
food web
Definition
a diagram that shows the feeding relationships between organisms in an ecosystem
Term
herbivore
Definition
an organism that only eats plants
Term
hydroelectric energy
Definition
electrical energy produced by falling water
Term
mutualism
Definition
a relationship between2 organisms in which both are :D
Term
natural resource
Definition
any natural material that is used by humans
Term
nonrenewable resource
Definition
a resource that can only be used one time
Term
omnivore
Definition
an organism that eats plants and animals
Term
overpopulation
Definition
the presence of too many individuals in an area for the available resources
Term
parasite
Definition
an organisms that feeds on an organism of another species and that ussually harms the host
Term
pioneer species
Definition
a species that colonizes anuninhabited areas
Term
pollution
Definition
an unwanted change in the enviroment that is caused by harmful substances
Term
population
Definition
a group of organisms of the same species in an specific area
Term
precipitation
Definition
any form of water that falls to the Earth´s surface from the clouds
Term
predator
Definition
an organismthat eats all or part of another organism
Term
prey
Definition
an organism that is killed and eaten by another organism.
Term
producer
Definition
an organism that can make its own food by using energy from its surroundings
Term
renewable resource
Definition
a natural resource that can be replaced
Term
savanna
Definition
a grassland that has scattered trees
Term
succession
Definition
the replacement of one type of community by another at a single location
Term
symbiosis
Definition
a relationship between two different organisms
Term
objective observation
Definition
an observation that has evidence of reality
Term
subjective observations
Definition
an obervation thst says your feelings
Term
acid precipitation
Definition
rain,sleet or snow that has a high concentration of acids.
Term
channel
Definition
the path that a stream follows
Term
divide
Definition
the boundary between drainage areas that has streams that flow in opposite direction
Term
erosion
Definition
the movement of soiland sediment from one place to another.
Term
load
Definition
the materials carried by a stream
Term
non-point source pollution
Definition
pollution that comes from more than 1 source.
Term
non-point source pollution
Definition
pollution that comes from more than 1 source.
Term
point-source pollution
Definition
pollution that comes from a specific site
Term
watershed
Definition
the area of land that is drained by a water system
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