Stream Development

What is runoff?

• The process of sediment moving or being weathered away by wind or water.

• Water that moves over Earth's surface, because it doesn't infiltrate the ground.

• Water moving from the liquid state to the gaseous state.

• Observations described in words or letters.

What is a tributary?

• A competitor in the Hunger Games; eg, Katniss Everdeen volunteered as a tributary in place of her sister.

• A mass of frozen water slowly moving over land; eg, you can see tributaries in Tributary National Park, in Montana.

• A larger stream or river that flows into a smaller one; eg, the Mississippi River is a tributary of the Kanawha River.

• A smaller stream or river that flows into a larger one; eg, the Kanawha River is a tributary of the Ohio River.

What is a floodplain?

• The area near a river that floods when water levels get to be too high.

• The area near a river that looks boring or dull.

• The process of water levels going over a river or stream bank.

• Water gathering on the surface of the Earth because it doesn't seep into the ground.

The gradual movement or removal of sediment from a location by water is called...

• erosion

• runoff

• slope

• tributary

With a steeper slope, we would expect to see...

• less erosion

• more erosion

• the same amount of erosion

• no erosion at all

Solution, suspension, and bed load are the three components of...

• stream load

• gravity

• erosion

• water

The steeper the slope, the ________ the stream.

• Slower
• Broader
• Faster
• Curvier

Streams with steep gradients have a(n) _____ velocity than those with gentle gradients.

• Greater
• Lesser
• Average
• None of these

Sediments are deposited in a river delta because the 

• velocity of the river decreased
• force of gravity decreased
• volume of the river increases
• gradient of the river increases

What does stream formation rely on?

• An adequate water supply

• Narrow path

• Stream Banks

• None of the above