DEFINITIONS Flashcards
The particulate model of matter states?
That matter is made up of small discrete particles and that the discrete particles in matter are in constant and random motion.
What is Melting Point?
The melting point is the temperature at which a solid melts to form a liquid or liquid freezes to form a solid.
WATER MELTS AT ZERO DEGREES
What is Boiling?
Boiling or the boiling point is the temperature when a liquid turns into a gas.
WATER BOILS AT 100 DEGREES
What is Freezing?
The process through which a substance changes from a liquid to a solid.
All liquids except helium undergo freezing when the temperature becomes sufficiently cold.
WATER FREEZES AT 0 DEGREES
What is Condensation?
Condensation is when a gas turns into a liquid.
Condensation point is the temperature it takes for a gas to turn into a liquid.
What is Sublimation?
This is when a solid changes directly into a gas without turning into a liquid into a liquid first.
Example: Dry Ice, Iodine, Ammonium Chloride
The picture is dry ice.
Define Science.
Science is the systematic study of nature and its application to us and the environment.