States of Matter
What are the three main states of matter?
solid, liquid, gas
What is the process called when a solid turns into a liquid?
Melting.
These phase changes energy and motion of particles decrease
deposition, freezing, condensation
What is an everyday example of melting?
Ice melting into water.
In which state of matter do particles have a definite shape and volume?
Solid.
What do we call the change from gas to liquid?
Condensation.
What is required for a phase change to occur
energy
Give an example of condensation.
Water droplets forming on a cold glass.
What is the state of matter that has a definite volume but takes the shape of its container?
Liquid.
What is the term for the change from liquid to gas?
Evaporation.
What is dry ice? Solid what?
Solid carbon dioxide
What is an example of evaporation?
Puddles drying up after it rains.
Which state of matter has the weakest force of attraction between particles?
Gas.
What phase change occurs when a gas turns directly into a solid?
Deposition.
These phase changes energy and motion of particles increase
melting, sublimation, evaporation
Provide an example of deposition.
Frost forming on a cold window.
What is the theory that all matter is composed of particles (atoms and molecules) moving constantly in random directions?
Kinetic Theory of Matter.
What is the name of the process when a solid changes directly into a gas without becoming a liquid first?
Sublimation.
Which state of matter has the least amount of energy (particles that move the slowest)?
Solid.
Name an example of sublimation.
Dry ice turning into carbon dioxide gas.