Smash, dissolve, and create rocks with the Science Wiz Rocks Kit. It includes a 40 page book with materials. Manipulate the oldest objects on the planet - rocks. Discover just how old is OLD! Identify, break and display volcano rocks Erupt your own volcano Layer your own sedimentary rocks Acid test rocks - dissolve and fizz Shatter metamorphic rocks Test rocks for hardness with the scratch test Explore the age map of surface rocks Discover how the earth's amazing history is recorded in rocks.