Share Word Search Listen Up! To create your word search for "Listen Up!", 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. ENVIRONMENT THREATENING CHALLENGES PROTECTING ADDRESSING INTRODUCED ACCESSIBLE THOUSANDS IMPORTANT ACTIVITY INVASION HABITATS MACHINES DROWNED ADAPTED WHISTLE STREAMS COMPLEX TRAFFIC FIZZLE PEOPLE BURBLE EMITS WORLD HUMAN TREES YOUNG BIRDS BANG POP How do you want the words displayed in the game? Forward Down Diagonal Backward Puzzle Title