Use this A2-B1 ESL science reading passage to learn why people shiver. It includes key vocabulary, reading comprehension questions, and answers for English learners.Reading LevelA2-B1Word Count229 wordsReading PassageOn a cold day, your body may begin to shake. Your teeth may chatter, and your shoulders may move quickly. This shaking is called shivering.Shivering happens when the body feels too ..