Activities

• Measuring the Size of the Earth
  
• Measuring the Size of the Earth from Arizona
  
• Size, Mass, and Density of the Earth
  
• Mass and Density of the Earth
  
• Layers of the Earth
  
• Ages of Rocks and the Earth
  
• Geochronology in the San Juan Mountains
  
• Stream Flow in the Animas River
  
• Snow Melt and Stream Flow in the Animas River
  
• Volcanic Ejecta from Sunset Crater
  
• The Epicenter of a Southwestern Earthquake
  
• Impact Processes at Meteor Crater
  
• Impact Processes at Meteor Crater (Advanced)
  
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