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Characteristic Properties
Specific properties that are unique to each type of matter.
Melting point, density, condutivity
Endothermic Reaction
A reaction pulls in or absorbs energy.
Chemical Ice Pack
Exothermic
A chemical reaction that releases or has excess energy.
Burning fuel in a jet plane to push it forward
Covelant Bond
Chemical bond formed when two atoms share electrons. usually nonmetals
Molecule
group of atoms joined by covalent bonds
Chemical Bond
Attraction that holds two atoms together by sharing electrons.
Matter
Stuff that makes up everything. Has mass and volume and density.
D=m/v
Gas
Random arrangement of atoms moving very fast
Liquid
atoms that are not in rigid order but move slower than gas
Solid
atom arranged in order, very slowly moving
Freezing point
Liquid to Solid
Melting Point
Solid to Liquid
Boiling point
Liquid to gas
Condensation Point
Gas to Liquid
Sublimination
Solid to gas skipping the liquid form
Physical Properties of Matter
No chemical change
texture, feel, color
White marshmallow
Chemical Properties of Matter
Needs a chemical reaction
Only observed as a new substance
Marshmallow after surgar has been carmalized
Author
Anonymous
ID
3891
Card Set
Science
Description
7th Grade Science quiz
Updated
2010-01-08T05:56:53Z
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