* Elements are pure substances that cannot be broken down into simpler substances (like oxygen, gold, or carbon).

* Compounds are formed when two or more elements chemically combine in a fixed ratio (like water, which is H₂O).

* Mixtures are combinations of two or more substances where each substance retains its own properties and can be separated by physical means.

Tea is made by steeping leaves (or sometimes other plant parts) in hot water. The water extracts various compounds from the leaves, creating a complex mixture that includes:

* Water: The primary component.

* Caffeine: A stimulant.

* Tannins: Compounds that give tea its astringent taste and color.

* Flavonoids: Antioxidants.

* Essential oils: Compounds responsible for tea's aroma.

Since these components are not chemically bonded together in a fixed ratio, and can be separated using techniques like evaporation or filtration, tea is classified as a mixture.