Here's a breakdown:
* Phase Transition: A change in the physical state of matter. Examples include melting (solid to liquid), boiling (liquid to gas), and condensation (gas to liquid).
* Liquid: A state of matter with a definite volume but no definite shape.
* Solid: A state of matter with a definite volume and shape.
What happens during freezing?
As a substance cools, its molecules lose energy and slow down. The molecules become more tightly packed together, and their motion is restricted. This increased density and restricted movement leads to the formation of a solid structure with a defined shape.
Key factors in freezing:
* Temperature: Each substance has a specific freezing point (or melting point). Below this point, the substance will freeze.
* Pressure: Pressure can affect the freezing point of some substances.
Examples of freezing:
* Water freezing into ice
* Molten metal solidifying into a solid object
* Liquid nitrogen becoming solid nitrogen at very low temperatures
Let me know if you have any other questions!
