Why Does Popcorn Pop? | A2 ESL Science Reading Passage

A hard seed becomes a light snack in seconds. Read about what happens inside, then try five questions.Read the passageTry the questionsReading Level: A2–B1 Word Count: 180 wordsReading PassageA bowl of popcorn looks very different from the small seeds used to make it. Heat causes this change, but something inside each seed makes it possible.Each popcorn kernel contains a little water and starch..