This simple game reviews the following earth "spheres":
-- the biosphere
-- the hydrosphere
-- the lithosphere
-- the troposphere
-- the strato-/meso-spheres
-- the thermo-/exo-spheres
Each player or team tries to be first to cover all 12 spaces on their playing board, having thought of or drawn (on a card) 2 items that are part of each EarthSphere.
Cards can be printed double-sided with items provided for each sphere, or they can be printed single-sided for players to come up with their own items.
Examples of items given:
-- Mount Everest (lithosphere)
-- stratus clouds (troposphere)
-- jet streams (stratosphere)
-- International Space Station (thermosphere)
Full instructions are included.