A federal judge has put on hold the majority of what attorneys have called a “momentous” change to Ohio’s gay marriage law.
Calendar in Ice
The ways tree rings and glaciers reveal past events and record time.
In this lesson students will learn how an ice core provides a record of past climates. Students will create a timeline of their life experiences, analyze model glacier data, and create an ice core diagram of the Dust Bowl years.
Download teacher’s guide (PDF, 116K)