What is sticky stuff from trees?

The sticky substance from trees is often referred to as tree sap, which is primarily composed of sugars, water, and various organic compounds. Sap serves as a defense mechanism, helping to seal wounds and protect the tree from pests and diseases. Certain types of trees, like maples, produce sap that can be harvested for syrup. Additionally, some saps can harden into resins, which have applications in varnishes and incense.