Feel nature’s wrath as it changes Earth. Set includes Understanding: Volcanoes; Understanding the Universe; Rocks; Wonders of Weather; Fault Line: San Francisco; How Big Is My Universe; Stargazers; The Shape of the Land; Raging Rapids: The Power of Water; and Understanding Oceans. 397 minutes.

Each video features award-winning documentaries and fact-filled narrations, plus

	On-screen questions
	Before-and-after topic presentations
	Online lesson plans
	A printed Teacher’s Resource Guide