NGSS
Boiling point
The temperature at which a liquid boils. Boiling point. The boiling point is when a liquid gets hot enough to turn into a gas, like water turning into steam.
Change of state explained in an easy to understand way.
Freezing point
The temperature at which a liquid changes to a solid is called the freezing point. Freezing point is when water gets cold enough to turn into ice.
Heat explained in an easy to understand way.
Melting point
The temperature at which a solid changes into a liquid is called the melting point. The melting point is when something like ice becomes water because it's warm enough.