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Elementary School Science Classroom: Teacher Explains Chemistry to Diverse Group of Children, Child Mixes Chemicals in Beakers. Children Learn with Interest
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Elementary School Science Classroom: Teacher Explains Chemistry to Diverse Group of Children, Child Mixes Chemicals in Beakers. Children Learn with Interest
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Elementary School Science Classroom: Teacher Explains Chemistry to Diverse Group of Children, Child Mixes Chemicals in Beakers. Children Learn with Interest
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Elementary School Science Classroom: Teacher Explains Chemistry to Diverse Group of Children, Child Mixes Chemicals in Beakers. Children Learn with Interest
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