earth + fire = lava
earth + air = dust
water + fire = alcohol
water + earth = swamp
air + water = steam
air + fire = energy
life + stone = egg
life + ash = ghost (+new group: Mythical)
water + life = weeds (+new group: Primitive)
swamp + life = bacteria
stone + fire = metal
fire + dust = ash
energy + swamp = life
air + energy = storm
energy + metal = electricity
life + sand = seeds
air + egg = bird (+new group: Animals)
earth + egg = dinosaur
sand + egg = turtle
earth + weed = mushroom
swamp + weeds = mossair + worm = butterfly
life + clay = golem
fire + bird = phoenix
earth + worm = beetle
stone + plankton = shell
dinosaur + fire = dragon
storm + bird = thunder bird
worm + swamp = snake
earth + moss = grass (+new group: Plants)
earth + seed = tree
clay + fire = bricks (+new group: Civilization)
here are some of the things u can create
i got them from this website http://jayisgames.com/archives/2010/06/doodle_god.php
hope this helped
swamp + bacteria = worm, sulfur
 "Rotatix"){kind=icon}
 "Electricman2HS"){kind=icon}
 "Run 2 Live - Great Escape"){kind=icon}
 "Harvest Ranch"){kind=icon}
 "Doodle God"){kind=icon}
 "Flight Of The Hamsters"){kind=icon}
 "The First Hero"){kind=icon}
 "Pandemic 2"){kind=icon}
 "Gibbets 3"){kind=icon}
 "Epic Coaster"){kind=icon}
 "Kongregate Avatar Creator CONTEST"){kind=icon}
 "Nyan Cat: Lost in Space"){kind=icon}
 "Andrew the Droid"){kind=icon}
 "Ninja Cat"){kind=icon}
 "Mr Runner"){kind=icon}
 "You will hate this game"){kind=icon}