The Elements: Oxygen

Oxygen is a vital element for life, making up a significant part of the human body and being essential for respiration in plants and animals. It is odorless, tasteless, and colorless as a gas, and pale blue as a liquid. Fish utilize dissolved oxygen in water. Industrially, oxygen is used in welding, and medically, it treats conditions like pneumonia. It is the most abundant element in the Earth's crust.

What new insight or understanding did you gain from this video?