3rd Grade Science Quiz
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MOTION AND STABILITY: FORCES AND INTERACTIONS
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Two students push a book in opposite directions, and it stays still. Why?
A
Forces are balanced, because one student is pushing the book.
B
Forces are unbalanced, so the book should not change motion.
C
Forces are balanced, so the book does not change motion.
D
Forces are unbalanced, because the book is flat and smooth.
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