Discussing ores (geology), how plants really grow (plant biology), the ○N○ W♦E ○S○ factor (following the sun and finding your way back without torches at night (astronomy)) (geography and mapping techniques). There were discussions around "How would I get back home if I was lost in the woods after biking up a trail that no one really knew about?" (survival skills)
Energy, reaction
Water Cycle - student project for 5th grade Science 2012.12
Building extra-dimensional figures, possible up to four-dimensional figures in Minecraft.
For example, a tesseract is fairly easy to build.
Possible with mods[]
IndustrialCraft 2 + Resonant Induction[]
Nuclear reactors
Fusion
Fission
Breeder
Galacticraft[]
Space station oxygen setup
Build an airtight design with functional airlocks, so as not to suffocate