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8th Grade: Properties of Matter Unit

Horizontales
Organized way of learning or examining the natural world
Feely moving molecules that do not separate
Changes in chemical properties or composition , usually forms a new substance
Mixture that is undissolved; ex. Italian dressing
Amount of matter in an object
Amount of mass per unit of volume (D=m/v)
Law meaning matter cannot be created or destroyed in a closed system
One set of compounds reacting together to form a new set of compounds
Chart with chemical elements listed by atomic number and groups
Verticales
Tightly packed molecules
Smallest unit of an element
Basic building block of matter; cannot be broken down to a simpler structure
Branch involving matter or energy
Two or more substances dissolved into a solvent; ex. salt water
Physical properties of a substance changes, usually reversible
Solid separated from a solution
Group of atoms bonded together
Expression of a compound using symbols and numbers
Freely moving molecules that expand indefinitely
Chemical substance composed of two or more atoms of different elements