BreadcrumbHome » Resources » Synonym and Antonym Challenge – SPLAT! Synonym and Antonym Challenge – SPLAT! ActivityMiddle SchoolLess than 30 minutes...VocabularyWord Game... For each pair of words, identify whether the pair are antonyms or synonyms. English Download Activity (PDF) Part Of SPLAT! Protecting Pine Trees in the Western United States from Beetle Attack Explore Full Article ContentGlossary Download PDF Glossary View All Glossary attractant(ə trak tənt): A substance (such as a pheromone) that attracts specific animals (such as insects or individuals of the opposite sex). bole(bōl): Tree trunk. decompose(dē kǝm pōz): To rot or decay. distinguish(di stiŋ (g)wish): (1) To recognize one thing from others by some mark or quality; (2) to know or point out the difference. novel(nä vəl): New and not resembling anything used or known before. repellent(ri pe lənt): (noun) A substance that drives something (such as insects) away.