Which surface would cause the most friction?, sand paper, aluminum foil, grass, cement floor, Which surface would cause the least friction?, sand paper, gravel, grass, cement floor, Which activity would result in a pull?, kicking a soccer ball, opening a door, pedaling a bike, mowing the lawn, Which activity would result in a push?, closing a door, using a wagon, helping a friend up, a bird eating a worm, Which direction would the load go?, up, down, right, left, Which shows the best direction the rope would go?, down, down, up, up.

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