Phase Changes
Definition
Phase changes refer to the transition of matter from one state (solid, liquid, gas) to another. These changes occur when heat (energy) is added or removed.
Analogy
Think of phase changes like changing your clothes. When it's cold outside (low energy), you're in your "solid" state with heavy coats and boots. As it warms up (energy is added), you change into your "liquid" state with lighter clothing. If it gets really hot (even more energy), you might want to be in a swimsuit - that's like the "gas" phase.
Related terms
Melting Point: The temperature at which a solid turns into a liquid due to heating.
Boiling Point: The temperature at which a liquid turns into a gas due to heating.
Condensation: The process by which gas turns into a liquid when cooled down.
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