Layers of the Earth part of Keyah Math:Activities
Students use graphs of seismic wave travel times, and value for the diameter of Earth obtained in the Size of the Earth activity, to investigate the internal structure of the Earth and determine that it is layered. ...

Geochronology in the San Juan Mountains (Advanced) part of Keyah Math:Activities
This is a mathematically more advanced version of the Ages of Rocks and the Earth activity that introduces students to the mathematics of radiometric dating. Students derive the decay equation for the ...

Impact Processes at Meteor Crater (Advanced) part of Keyah Math:Activities
This is a more mathematically advanced version of the Impact Processes activity that introduces students to impact geology in a study of Meteor Crater in northern Arizona. Students use a set of formulas from ...

The Epicenter of a Southwestern Earthquake part of Keyah Math:Activities
This activity guides students to use the measured difference in P and S wave velocities to locate the epicenter of a minor earthquake in the Southwestern United States. Click here to view the full activity on the ...

Stream Flow in the Animas River part of Keyah Math:Activities
This activity consists of a set of problems in which students explore a simplified method for predicting streamflow in the Animas River in southwestern Colorado. Students first compute the area of the watershed ...

Impact Processes at Meteor Crater part of Keyah Math:Activities
In this activity, students are introduced to impact processes in a study of Meteor Crater in northern Arizona. They are guided in the use of a set of relatively simple formulas from physics to estimate the energy ...

Volcanic Ejecta from Sunset Crater part of Keyah Math:Activities
Students are provided with equations and geological data to estimate the velocities and impact effects of volcanic bombs that were ejected during the last eruption of Sunset Crater, a young cinder cone volcano in ...

Snow Melt and Stream Flow in the Animas River (Advanced) part of Keyah Math:Activities
This activity consists of a set of problems in which students explore the contributions of water from rainfall and snowmelt over the watershed of the Animas River in southwestern Colorado. Students first compute ...

Ages of Rocks and the Earth part of Keyah Math:Activities
This activity introduces students to the mathematics of radiometric dating. Students first apply the rubidium-strontium isotopic system to date rock samples from the San Juan Mountains of southwest Colorado, and ...