Science Review

Whick of the following would most likely cause the Earth's surface to change the fastest?

• A drought

• The deposition of rocks and sediment in a new location

• Shaking and splitting apart of land

• The breakdown of plant and animal remains

After an eruption, how do volcanoes create new land?

• The ground shakes and cracks open.

• The eruption releases smoke and ash.

• Landslides occur when rocks fall from the volcano.

• Lava flows over the surface and hardens to form rock.

Mount St. Helens erupted in the state of Washington in 1980. The images show the mountain right before and after the eruption.

• The mountain and surrounding landscape changed dramatically within minutes.

• The mountain and surrounding landscape changed dramatically after hundreds of years.

• The mountain and surrounding landscape remain the same after the eruption.

• The mountain and surrounding landscape changed dramatically due to the strong winds.

A normal landslide involves the movement of soil down a slope. A landslide can cause..

• water to spout from the earth from geysers

• large rocks to fall from mountaintops.

• Vibrations and earthquakes.

• Volcanoes to erupt.

Which of the following DO NOT describe the results of volcanic activity? Select two correct answers.

• Movement of large amounts of rocks and soil due to water.

• Sudden, strong movement of buildings and other structures on Earth's surface.

• Molten rocks, spewing gases and ashes in the atmosphere.

Read the passage titled "Life in the Colorado river" below. When there is flash flooding in Texas, the river can overflow and flood the surrounding land. Which of the following would most likely happen to the population of animals on the land around the river.

• The number of raccoons would increase because they would have to move to higher land.

• The number of bobcats would decrease because they would have more animals to hunt.

• The number of deer would decrease because they would have to move to higher ground.

• None of the animals would be affected by the flooding of the river.

The following chart shows a population change after a recent flood. The information in the chart shows that..

• Floods make all species die.

• Some species thrive after a flood.

• Floods can cause temperatures to increase or decrease.

• Floods are harmful to all species.

Dylan is building a terrarium like the one shown below. He included a lizard, grasshoppers, plants, rocks, and soil. Which would most likely NOT happen if this type of environment was flooded?

• The lizard would learn how to swim.

• The lizard would try to move above floodwater.

• The lizard would drown.

• The plants that are submerged by water would die.

I found a fossil of a fish in what is now a cow pasture. How is that possible?

• Somebody put the fossil there.

• The wind moved the fossil there over time.

• The cow pasture used to be underwater.

• It would not be possible to find a fossil of a fish in a cow pasture.