- 1. Energy, Matter, Interactions, 15 projection slides Lieder_652
- 2. Classes of Matter, Properties, Chemical Bonding, 15 projection slides Lieder_654
- 3. Forest Trees, 15 projection slides Lieder_1311
- 4. Development of the Female Gametophyte of Pinus, 15 projection slides Lieder_3635
- 5. Rocks and Minerals, ground thin, 15 projection slides Lieder_3690