Use this A2-B1 ESL science reading passage to learn why people yawn. It includes key vocabulary, reading comprehension questions, and answers for English learners.Reading LevelA2-B1Word Count195 wordsReading PassageEveryone yawns. A yawn is a big breath that usually happens with an open mouth. It may seem simple, but scientists still study why we do it.People often yawn when they feel tired or b..
