Gravity is a Mystery

$5.99

Let’s Read and Find Out Science
Franklin M. Branley
– What goes up must come down – this is the law of gravity. Gravity determines how heavy you are. If you weigh 60 pounds on earth you’d weigh 1680 pounds on the sun! Read about this unexplainable force.

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Let’s Read and Find Out Science
Franklin M. Branley
– What goes up must come down – this is the law of gravity. Gravity determines how heavy you are. If you weigh 60 pounds on earth you’d weigh 1680 pounds on the sun! Read about this unexplainable force.

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