Crystals: Crystallography & Systems
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|A Math Forum Web Unit. Students studying polyhedra enjoy seeing the structures as they occur in the real world. Crystalline structures can be categorized into seven crystal systems: see photographs of beautiful crystals or make paper models of crystals by printing out nets of crystals and constructing the models. CrystalMaker software gives students experience with ball-and-stick, space-filling, wire-frame, stick, dot surface cloud, and polyhedral models of crystals. Also Java applets that show some of the major forms for the hexoctahedralclass (symmetry 4/m3bar2/m) of crystals; and links to Web sites about crystals.|
|Levels:||Middle School (6-8)|
|Resource Types:||Graphics, Lesson Plans and Activities, Link Listings, Topic Tools Miscellaneous, Web Interactive/Java|
|Math Topics:||Polyhedra, Art, Chemistry|
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