Saliva starts with an s and adds digestive liquid to food.
Sap.
simmer
ethanol e-Liquid
Vodka
Urine
A flower that starts with s is a sunflower.
A waterfowl that starts with S is swan.
"acetone" is a chemical liquid that starts with a. It is a solvent commonly used in nail polish remover and industrial applications for cleaning and degreasing.
Water temperature rises, ice (solid water) starts melting and becomes liquid, liquid starts boiling becoming vapor.
Water temperature rises, ice (solid water) starts melting and becomes liquid, liquid starts boiling becoming vapor.
Solidification is the process of a liquid freezing to become a solid. If you transcribed the question incorrectly, this answer works.