Share Word Search Extinction To create your word search for "Extinction", 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. INTERESTING ACTIVITIES POPULATION QUESTIONS NECESSARY MASTODONS EXCESSIVE EVIDENCE ENGAGING THINKING CONSIDER ASTEROID VOLCANIC ERUPTION GEOLOGIC CRITICAL CULPRIT REASONS PERCENT SOURCES EFFECT HIGHER STRIKE STYLE LEARN PAST PART TYPE ROLE BIRD How do you want the words displayed in the game? Forward Down Diagonal Backward Puzzle Title