National Park Service LogoU.S. Department of the InteriorNational Park ServiceNational Park Service
National Park Service:  U.S. Department of the InteriorNational Park Service Arrowhead
Casa Grande Ruins National MonumentAfternoon view of the Casa Grande from the southwest.
view map
text size:largestlargernormal
printer friendly
Casa Grande Ruins National Monument
Making Observations
Observing the stars and planets.

Observing the world around you is an important first step in the scientific method. As you make observations, you may begin to ask questions about those observations. You may see clouds form overhead, see the lightning, hear the thunder, and then feel the cold rain, but how do the clouds form and why does rain fall from them?

An example...

Betsy sees that she has a shadow. She has also noticed that her shadow will disappear at times, and even change shape. The trees, shrubs, and even nearby rocks also seem to have shadows. These are all important observations.

Back - Next

Painting the protective roof in 2003.  

Did You Know?
The metal roof structure above the Casa Grande was constructed in 1932 at a cost of almost $28,000. Maintenance of the roof structure includes painting it every 15-20 years. It was last painted in 2003 at a cost of over $100,000.

Last Updated: August 20, 2006 at 17:09 EST