Exploring the Grand Canyon
In Explore the Grand Canyon, narrator Sir David Attenborough takes us soaring above the Colorado River as it winds through the Grand Canyon. This video is excerpted from BBC's Planet Earth, a breathtaking documentary series that highlights the natural wonders of our planet.
Lesson Express
Q: What powers allow rivers to carve canyons?
A: Gravity causes water to flow downhill continually, eroding the rock of its bed.
Q: What do you think is meant by “stage in a river’s life”?
A: Student responses will vary. Students may mention that it may refer to how long the river has existed or whether the part of the river is near the source or the mouth.
Q: Why do you think so many people visit the Grand Canyon each year? Would you like to visit it?
A: Student responses will vary.