sábado, 21 de agosto de 2010

Vocabulary#3

Mass:  the amount of matter in an object.


Volume:  the amount of space an object takes up.




Weight:  (on Earth) a measure of the force of gravity between Earth and an object.


Density:  a measure of how tightly packed matter is; the amount of mass contained in a given volume.


Buoyancy:  the upward push on an object by the liquid (or gas) the object is placed in a given volume.


Conduct:  allow heat or electricity to flow through readily.


Insulate:  not allow heat or electricity to flow trough readily.


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