A crazy science quiz only for the brave-hearted.
Four
Three
Two
Six
Planet; star
Planet; asteroid
Planet; trans-neptunian object
Star; planet
Neutrons
Electrons
Quarks
Atoms
Taiga
Desert
Tropical rain forest
Grassland
Joseph McGrannahan
Robert Barone
Joseph Priestley
Augustin von Uukskafrusken
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