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science vocab words from 11-13-06


undefined, object
copy deck
the efficincy of a machineor mare generally, of a process in which some energy or work is put in and some work comes out
Primary Consumer
the 1st consumer organism in a givin food chain
Secondary Consumer
animals that obtain their food by feeding only on plant eating animals
Tertairy consumer
Use the sun's energy to obtain food
any of various compounds of carbon, hydrogen, and oxygen
a number that measures the quantity of matter
Kinetic Energy
The energy possesed by moving an object
the formation of a heavier nucleus from 2 lighter ones resulting in the release of energy
The splitting of a heavy nucleus into 2 nearly equal parts
closed system
a system where nothing enters and notihng leaves a system that must use and reuse everything in it
Open system
a system such as a living organism in which both matter and energy are exchanged between a system and the environment
Law of Conservation of Matter
The total mass of the Earth is constant
Law of Conervation of Energy
That energy can neither be created nor destroyed, but it can be transformed from one form to another
2nd Law of Thermodynamics
In any conservation of energy from one form to another, there is always a decrease in the amount of useful energy
Potential Energy
Stored energy

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