• 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. Fees are being collected and passes are available.

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?

Examples of pendants created and traded by the Hohokam

The ancient Sonoran Desert people made shell jewelry bracelets, rings, necklaces and pendants. Some of the jewelry was inlaid with turquoise, others had designs etched into the surface. The shells were acquired from as far away as the Pacific Ocean and the Gulf of California.