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Niewoehner Science physical and chemical properties

senses An object's physical characteristics can be observed with these
taste, smell, touch, sight, sound Examples of physical traits observed by your senses
mass, hardness, elasticity, melting point, and magnetism Scientists use these (non-senses) characteristics to describe objects and substances
physical property Physical changes change this, not the substance itself
solid, liquid, gas What are the three states of matter?
solid This state has a definite shape and volume.
liquid This state takes the shape of its container but always has the same volume.
gas This state expands to fill up its container, changing its volume and shape to fill the container.
mass how heavy or light something is
melting point at what temperature will something melt or freeze
hardness how hard or soft is something
elasticity how much will something stretch or bend
taste sweet, sour, bitter, spicy
smell rotten odor, burnt odor, sweet odor
size small, medium, large
material metal, plastic, wood, rubber
color black, purple, red, silver
shape circle, square, rectangle
texture/touch soft, rough, smooth, shiny, grainy feel
hearing ticking sound, engine sound, silent sound, snapping sound
magnetism things that are/are not magnetic
chemical change This kind of change forms a new substance.
break down into their atoms A chemical reaction can cause compounds to do this
chemical properties describes how the atoms of a substance reacts with atoms of other substances
Both physical and chemical properties When a substance changes, what type of properties change?
different In a chemical change, new substances have ___________ physical and chemical properties than the original substances.
smoke, ash, heat wood burning changes to this
pyrite Acid reacting to this forms a smelly gas.
luster shine
malleability ability to be hammered into thin sheets
ductility ability to be pulled into thin wire
cake baking, wood burning, tomato ripening Examples of chemical changes
folding, stretching, tearing, melting, freezing Examples of Physical Changes
Created by: kniewoehner