TED-ED: How heavy is air? - Dan Quinn

The video explains that air behaves like a fluid, with waves and eddies, and is not just empty space. It highlights the density of air molecules compared to interstellar space and how this density creates air pressure. Our bodies balance this pressure, allowing us to survive. Differences in air pressure cause wind and weather changes. Breathing involves manipulating air pressure, and the number of air molecules around us is vast, comparable to the number of grains of sand or stars.

What is the reason we don't notice air pressure most of the time?

What comparison is made between the number of air molecules and insects on the planet?

Describe how air pressure is exerted on our bodies and why we don't feel crushed by it.

Explain the relationship between air pressure and weather changes.

How does air pressure allow us to breathe?