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

    Casa Grande Ruins

    National Monument Arizona

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  • Visitor Center Rennovations

    Park is having major electrical and heating/cooling system work done. The Visitor Center will be closed until late June but restrooms, movie auditorium, historic ruins area, and picnic area will remain open (no fees or pass sales during rennovation).

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 National park Service Arrowhead

The difference between a National Monument and a National Park is the way they are created. National Parks require Congressional approval but National Monuments are established by Executive Order of the President.