1) The elephant is ___________ than the butterfly. a) heavier b) lighter 2) The pencil is ________ than the book. a) heavier b) lighter 3) The chair is _________ than the house. a) heavier b) lighter 4) The dog is _________ than the mouse. a) heavier b) lighter 5) The pencil case is ________ than the sharpener. a) heavier b) lighter 6) The boy is _______ than the airplane. a) heavier b) lighter

Comparing mass

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