The temperature at which they turn back into solid, depends on what type of fat your talking about
A solid.
A liquid becomes a solid by freezing or drying
become liquid
The point at which a solid becomes a liquid is known as the melting point. This differs depending on the solid.
From a liquid to a gas, the particles become more spread out and move slower. From a solid to a liquid, the particles also become more spread out and move slower.
If you're speaking about if there is more solid fat or liquid fat, it is pretty much all solid.
A fat can be a solid or a liquid. Normally we refer to a liquid fat as an 'oil', but this is for a fatty compound that is liquid at room temperature. All fats can be liquified or solidified, and will still be called 'fats' no matter what.
temperature
A cooled liquid will become a solid.
A liquid can become a solid for example when you freeze ice it becomes and ice cube.
The process of conversion of liquid into a solid is called freezing.
Freezing and melting points are synonyms: at this temperature a solid become a liquid or a liquid become a solid.
Liquid water placed in a freezer will become solid ice.
a liquid solid in a solid is example of an important collodial system called solid emulsion or gel. butter is one where liquid is water and solid is fat, oher eg: flesh
Decreasing the temperature a liquid become a solid.
A supercooled liquid can become solid on heating.
ice which then melts to become water. solid to liquid.