Learners investigate how dams help and hurt the ecology of an area. In this Grand Canyon lesson, students research the Glen Canyon Dam and why it flooded in 1996. Learners create a pros and cons list about dams and write a...

In this number sense worksheet, students explore the Grand Canyon. Students are to find five facts about the Grand Canyon that contain a number greater than the number one thousand.

Fourth graders study the Grand Canyon. They research the Grand Canyon and locate the Colorado River on the map of Arizona. They discuss erosion and read how sedimentary rock was formed. They view photographs of the Grand Canyon and...