Share Word Search The Ultimate Biography of Earth To create your word search for "The Ultimate Biography of Earth", first select the words you want to use. Choose up to twenty words for your game by clicking on a suggested word or enter your own by typing over an existing word. Suggestions for your word search; click to add. ILLUSTRATIONS HALLUCINATING EARTHQUAKES OXYGENATION GEOLOGICAL VOLCANOES MOUNTAINS CHANGING SEPARATE CENOZOIC TECTONIC MAMMALS WILDEST SPECIES CURIOUS MOLTEN BASICS GALAXY SOLAR SLOTH SPIKY CRAZY CRASH ROCK LIFE HUGE ERAS FORD HALF SKY How do you want the words displayed in the game? Forward Down Diagonal Backward Puzzle Title