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This is a science video that explains Atomic Number and Mass Number of an atom and how they are linked to the electrons, protons and neutrons of an at...

This fun activity was designed to support advanced middle school and high school students learning about the Law of Conservation of Mass and balancing chemical equations. Balance It! is an ideal activity to support student understanding of the Law of Conservation of Mass because it allows students to practice balancing chemical equations in a fun way! Since most students think dry-erase is fun and different, each equation becomes a puzzle to solve! $

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