Phase Change 1
solid to liquid
Melting
liquid to solid
Freezing
gas to liquid
Condensation
liquid to gas
evaporation
What is it called when a molecules freedom of movement changes levels
Phase change
How do ice cubes "disappear" in a room-temperature drink?
Heat from the drink is absorbed by the ice cubes, causing them to melt.
What is a common GAS on Earth that you know?
Examples: Oxygen, Carbon Dioxide, Nitrogen, Methane, Hydrogen. Answers will vary.
The sun heats the water, causing it to change from liquid to gas.
At the molecular level, why does water flow and fill up a container?
Water is a liquid and the molecules have a strong enough attraction to keep them together, but not strong enough to keep them from moving and sliding past each other.
What is Kinetic Energy
Movement of something (mass) caused by energy transfer of speed
How close or connected molecules are to each other
Molecular attraction
The ability of a molecule to move wherever it wants
Freedom of movement
A group of atoms joined together in a particular way
Molecule
A different form or state of the same substance/object
Phase
The average kinetic energy is known as.....
Temperature
Name 3 phases
Solid, liquid and gas
When the temperature increases the kinetic energy.....
Increases/gets hotter
A measure of how hot or cold something is
Temperature
When the temperature decreases the kinetic energy
decreases/gets colder
In which state of matter do particles have the most freedom of movement?
Gas
If the freedom of movement is high, then the molecular attraction is......
Low
Solid
If the freedom of movement is low, then the molecular attraction is.....
High
Name 10 objects IN A ROW that have a medium molecular attraction
you should have named all gases
Name 10 objects in a row that have a high molecular attraction
Hopefully you named all solids