• The Great House at Casa Grande Ruins stands out for miles

    Casa Grande Ruins

    National Monument Arizona

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  • Visitor Center Update

    The Visitor Center is OPEN! Major heating/cooling system work is done. Not all artifacts have been returned to display at this time. Once all artifacts are returned- fees return. CURRENTLY no fees or pass sales. Changes due August 26 or so.

The Scientific Method

Careful scientists use the scientific method every day!

The world is full of questions. What causes volcanoes to form? Why does it rain? The scientific method was developed to provide an unbiased way of finding the best possible answer to a question.

The scientific method was developed so scientists could test possible explanations to questions, and allow others to verify the results. There are five general steps when applying the scientific method:

  1. Make observations
  2. Ask a question based on observations
  3. Form several hypotheses
  4. Test the hypotheses
  5. Make a conclusion

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Did You Know?

The Hohokam grew corn using a sophisticated irrigation system.

Farmers have grown crops in the Salt and Gila River valleys for over 2000 years. The ancestral Sonoran Desert people grew corn, squash, beans, and cotton by creating a flood irrigation system with over 1000 miles of canals. More...