Leaves were whirling in the air.

A ring of smoke floated from his cigar into the air.

I watched a ring of smoke that floated from his cigar into the air.

Particles of dust float in the atmosphere.

While light waves travel most quickly through air, they go slower through water and even slower through glass.

It is foolish of you to build a castle in the air while forgetting to drive in pilings for its foundation.

The smoke ascended into the air.

The ball bounced high in the air.

The boomerang hurtled whistling through the air.

An ostrich does not fly through the air.