How the Earth works...

Earth Primer is a science book for playful people. Discover how Earth works through play—on your iPad. Join a guided tour of how Earth works, with the forces of nature at your fingertips. Visit volcanoes, glaciers, sand dunes. Play with them, look inside, and see how they work.

Earth Primer defies existing genres, combining aspects of science books, toys, simulations, and games. It is a new kind of interactive experience which joins the guided quality of a book with open ended simulation play.
• Discover how Earth works through play.
• The forces of nature are at your fingertips—
make volcanoes, shape sand dunes, form glaciers, sculpt mountains, push around tectonic plates, paint with wind, heat up magma—and more!
• 20 different tools to unlock.
• Richly interactive geological simulations.
• Sandbox mode.

This looks excellent
Earth, A Primer — Trailer from Chaim Gingold on Vimeo.

Made by Chaim Gingold who worked on The Sims, but also Spore, which I used back in 2008....

Looking forward to having a play with this when it comes out...