Air. Around. Us. What. Is. Eartha#39;s. Atmosphere? Like all matter, air has weight. Even the air that surrounds us all day has weight. We do not notice it ... It may seem very large, but really it is as thin as the skin of an apple. It has many layers.
|Title||:||Earth Systems and Cycles Earth and Space Science Inquiry Handbook Discovering Science Through Inquiry|
|Author||:||Teacher Created Material|
|Publisher||:||Teacher Created Materials - 2013-01-01|