What is Air?

Azevedo, P. (2004) Which Way is the Wind Blowing?

Air is odorless, tasteless, and unseen. Its presence can be seen in everyday life as it interferes with visible physical matter. You see it blow away a candle, carry a piece of tissue, or transport small particles of dust and leaves from one place to another.

 Photo Reference:
Azevedo, P. (2004) Which Way is the Wind Blowing? Retrieved October 29, 2009,
from http://www.trekearth.com/gallery/Europe/Portugal/South/Lisboa/Sintra/photo98993.htm

 Text Reference:

Badders, W., Bethel, L. J., Fu, V., Peck, D., Valentino C., & Summers, C. (2003). Discovery works. Boston, USA: Houghton Mifflin Company.