domingo, 22 de agosto de 2010

vvocabulary 4

mass a amount of matter in an object.

volume the amount of space an object take up.

weight on earth a measure of the measure of the force of gravity between earth and an object.

density a measure of how tightly packed matter is the amount of mass conteined in a given volume.

buoyancy the upward push on an object by the lighid or gas the object is placed in.

conduct allow heat or electricity to flow through readily.

insulate  not allow heat or electricity to flow through readily.
illustrate


2 comentarios:

  1. puedes poner figuras menos borrosos porfavor? ademas deverias poner un calendario y poner una introduccion al principio de tu blog.

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    d
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