General Knowledge
what is all matter made up of?
tiny moving particles
which state has a definite shape and volume?
solid
what determines how close particles are to each other?
the strength of their force of attraction
what is a physical change
the appearance changes (solid to liquid)
what is ONE thing that determines the state of matter
the speed of the particles
which state has definite volume, but no definite shape
liquid
which state has the strongest force of attraction?
solids
what is a chemical changes
a substance turns into a completely new substance whit different properties
what is another thing that determines the state of matter
how strongly particles are attracted to eachother
which state has no shape or volume
what can affect the force of attraction between particles?
temperature
what does changing the air pressure of a substance do?
changes it's energy and causes it to boil or melt
what are the 4 states of matter
solid, liquid, gas, plasma
which other shape has no state or volume
plasma
what makes a substance melt slowly?
an insulated container
what do we call gas at boiling point
water vapor
describe the particles in EACH of the 4 states of matter
solid particles are close together and move slowly. Liquid particles move fast enough to break through their attraction. Gas particles move fast enough to break away from each other and move in many directions. Plasma particles are like gas's but are electrically charged and can make electricity!
explain the difference between plasma and gas
Plasma has no definite shape or volume, like gas, but it's particles are electrically charged and can conduct electricity.
explain how a solid becomes a liquid, a liquid becomes a solid, a liquid becomes a gas, and a gas becomes a liquid
melting
freezing
evaporation
condensation
what are the FIVE clues that a chemical changes is happening
heat
light
sound
permanent color change
fizzing
Explain condensation