Use this A2-B1 ESL science reading passage to learn how clouds form. It includes key vocabulary, reading comprehension questions, and answers for English learners.Reading LevelA2-B1Word Count228 wordsReading PassageClouds look soft and light, but they are made of water. A cloud is a group of many tiny water drops or tiny ice crystals floating in the sky.Clouds often begin with the sun. The sun w..