Audio Read-Aloud Assistant
Listen to the narrator read the chapter aloud, sentence by sentence.
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Teacher Tip: Click directly on any sentence in the text to highlight it for your students. You can also press Space or → on your keyboard or remote clicker to advance to the next sentence!
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Test Your Matter Knowledge!
Answer these comprehension questions to see what you discovered about matter, particles, changes, and chemistry.
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Great Job, Science Investigator!
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Unit Science Glossary & Key Definitions
Hover or tap any word in the story or explore the glossary definitions below: