This storyline is a sequence of lessons which progress the learner through questions and investigations, each guided by a unique phenomena occurring in nature to help spark student interest and inquiry.  

In this storyline, students investigate:

• What does Iowa’s surface look like?  
• Why does Iowa have the surface landform features that it has?

What students figure out:

• Glaciers can form different land features and many of those resulting features are geographically located within Iowa. 
• The processes that created Iowa’s surface features took place over a long period of time, the most recent processes occurring about 11,000 years ago. 
• The processes that created Iowa’s surface features are both similar and different to those processes that shaped the landscape of places around the world. Some of those processes took place over a long period of time and some happened very fast. 
• Geological processes will continue to shape Iowa’s landscape in the future.