Set 3 Includes 3 Kits, The Mineral Kit, The Geodes Kit, and The Fossils Kit. Minerals, In this kit Young Scientists become geologists and study the properties of minerals by using the streak test, hardness test, acid test, and magnetic test to identify five unknown minerals. A great introduction to real field science. Crystals, Young Scientists learn about crystals by growing a salt rock garden, rock candy, and string crystals. This kit is completed with a bang when Young Scientists break open real geodes and find beautiful crystals inside Fossils, Young Scientists study fossils by making both cast and mold fossils of bugs and by examining the enclosed plant fossil replica. This kit is a great introduction to the fascinating field of paleontology.