Test: 4th Grade Science

1.

Steven and his sister Sasha are making observations about erosion and the rate of movement of materials. They are looking at different bodies of water and how small rocks are being moved. Sasha took a piece of broken rock about 2 cm and threw it into each body of water to observe what happened. They followed the material if it moved to get a distance of travel. They recorded the data below.

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What observations can be made regarding the bodies of water and distance eroded materials travel?

Fast-moving and slow-moving flows of water carry the same amount of eroded materials the same distance.

A slower flow of water can carry more eroded material than a faster flow of water.

A faster flow of water is not able to carry eroded material as far as a slower flow of water.

A slower flow of water is not able to carry eroded material as far as a faster flow of water.

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