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review
state test
46
Science
8th Grade
04/20/2009

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Cards

Term
Electron
Definition
negaively charged particels in an atom
Term
genetics
Definition
study of heredity
Term
kinetic energy
Definition
energy of motion
Term
cytoplasm
Definition
gel-like fluid in the cell for structure
Term
bar graph
Definition
used to show unrelated data
Term
dislacement
Definition
volume of water moved by an object
Term
complex machine
Definition
machine made of two or more simple mechines
Term
Matter
Definition
the substance or substances of which any phsyical object consists or is composed
Term
machine
Definition
somthing that has parts and functions
Term
toxic
Definition
posion
Term
ribosomes
Definition
a tiny somewhat mitten shaped organelle
Term
density
Definition
the state or quality of being dense
Term
waves
Definition
a liqued body
Term
fossel fuel
Definition
any combustible organic material, as oil, coal, or natural gas, derived from the remains of former life.
Term
decibel
Definition
a unit used to express the intensity of a sound wave, equal to 20 times the common logarithm of the ratio of the pressure produced by the sound wave to a reference pressure, usually 0.0002 microbar.
Term
hydroelectric power
Definition
pertaining to the generation and distribution of electricity derived from the energy of falling water or any other hydraulic source.
Term
refraction
Definition
the change of direction of a ray of light, sound, heat, or the like, in passing obliquely from one medium into another in which its wave velocity is different
Term
convection
Definition
Physics. the transfer of heat by the circulation or movement of the heated parts of a liquid or gas.
Term
reflection
Definition
the act of reflecting or the state of being reflected.
Term
consumer
Definition
an organism that obtains energy by feeding on other orgaisms
Term
predator
Definition
a organism that does the killing
Term
prey
Definition
eaten by another
Term
scavenger
Definition
feeds on bodys of dead organisms
Term
producer
Definition
a organism that makes its own food
Term
decomposer
Definition
a organism that brakes down chemicals from a dead organism
Term
herbivore
Definition
a consumer that only eats plants
Term
carnivore
Definition
eats only meat
Term
omnivore
Definition
eats both meat and plants
Term
food chain
Definition
series of events when one organism eats another
Term
food web
Definition
the pattern of overlaping food chains
Term
ribisomes
Definition
a small grain like structure in the cyoplasm
Term
endoplasmic reticulum
Definition
a cell structure that forms passageways in which protien and other materials are carried through the cell
Term
lysosome
Definition
a small round cell sturture containing chemicals that break down larg food particels into smaller ones
Term
chloroplast
Definition
a structure in the cell of plants and some other organisms that captures sun lgiht
Term
mitocondria
Definition
it creats energy for the cell and its peanut shaped
Term
photosynthesis
Definition
a process using carbon dioxide warer and sunlight to make its own food
Term
respiration
Definition
the process which cell us to break down simple foods molecules to reaslse thier enegry
Term
increase
Definition
to make greater in number size, strenght or quality
Term
decrease
Definition
smaller
Term
Sedimentary
Definition
of, pertaining to, or of the nature of sediment.
Term
metamorphic
Definition
pertaining to or characterized by change of form, or metamorphosis.
Term
igneous
Definition
Geology. produced under conditions involving intense heat, as rocks of volcanic origin or rocks crystallized from molten magma.
Term
sediment
Definition
the matter that settles to the bottom of a liquid; lees; dregs.
Term
diffusion
Definition
act of diffusing; state of being diffused.
Term
osmosis
Definition
the tendency of a fluid, usually water, to pass through a semipermeable membrane into a solution where the solvent concentration is higher, thus equalizing the concentrations of materials on either side of the membrane.
Term
adaptation
Definition
the act of adapting.
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