Everything in our universe has mass- from the smallest atom to the largest star. But the amount of mass has remained constant throughout existence even during the birth and death of stars, planets and you. How can the universe grow while maintaining its mass? Todd Ramsey answers that question by unraveling the law of conservation of mass. [4:37]

Concepts

matter

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Additional Tags

universe, ms-ps1-5, ted ed: the law of conservation of mass, law of conservation of matter

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Classroom Considerations

• Knovation Readability Score: 4 (1 low difficulty, 5 high difficulty)