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Flows and takes the shape of a container.
Liquid (macroscale appearance)
Increasing the kinetic energy of a substance will lead to what phase change(s)?
Melting, evaporation, and Ionization
Phase change that occurs when a liquid changes to a gas
Vaporization
A group of 2 or more atoms joined together in a particular way.
Molecule
Removing thermal energy will _____________ the particle motion and reverse phase changes
Decrease
Has no visible shape and fills the container.
Gas
Decreasing the kinetic energy of a substance will lead to what phase change(s)?
Condensation, Freezing, and DeIonization
change that occurs from a solid to a gas
Sublimation
solid
True or False
If I need to throw away a pencil in science class, it's ok to get up and throw it away.
FALSE
Holds its shape and does not take the shape of the container.
Solid
When transferring energy to or from a substance it can change the molecules ______________________.
Freedom of movement
Phase changes that occurs when you decrease the thermal energy present in plasma
Deionization
My shape changes but my volume does not.
Liquid
Particles in a solid are in a fixed position and do not move
TRUE or FALSE
What happens to the molecules of a substance as it changes phases?
Molecules move differently.
Give one example of something that melts and something that burns when placed in fire.
Melts = Chocolate
Burns = Wood
(Answers may vary)
True or False: Kinetic Energy increases when a solid changes to a gas
TRUE
A noticeably different form or state of the same substance
Phase
What is HEAT?
Heat is a FLOW (transfer) of energy from HOT to COLD
What happened to the liquid in Titan's lake?
It evaporated.
What caused the liquid methane to change phase from 2007 to 2009?
Transfer of energy from the sun
(increased kinetic energy, speed, temperature)
When considering our current scope of understanding, why do hot things rise?
Particles become more excited are less dense and rise above more dense material
The total kinetic and potential energy combined
Thermal Energy
How does thermal energy effect particle movement
Direct Relationship they are dating and go together