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Science Test 60 Essa

Essay Questions

QuestionAnswer
How are the Mercalli Scale and Richter Scale similar? How are they different? The Mercalli Scale and Richter scale both measure an earthquake's energy level (magnitude). The Richter scale measures the magnitude at the epicenter. The Mercalli scale measures what people felt and what happened to objects at a specific location.
What are three main causes of erosion? Three main causes of erosion are what they say gravity, glaciers, running water, waves, and wind.
What are the three types of active volcanoes? How did they become these different shapes? The three types of active volcanoes are: Shield volcanoes, Cider-cone volcanoes, and Composite volcanoes.
How did shield volcanoes become their shape? Shield volcanoes are built by thinner, fluid lava that spreads over a large area.
How did Cinder-cone volcanoes become their shape? Cinder-cone volcanoes are built by thick lava that is thrown high into the air and falls as chunks of cinders.
How did Composite volcanoes become their shape? Composite volcanoes are built by layers of ash and cinders sandwiched between layers of hardened lava.
Explain what can be done to protect beach shorelines. We can protect beach shorelines by building dams which change the speed or the direction of the water. We can build levees to hold back water or prevent a flood. We can build barricades to slow erosion.
What are the characteristics of an earthquake? An earthquake is a sudden movement of Earth's crust. When the layers of rock on both sides of a fault slip, this causes an earthquake. This slipping occurs beneath Earth's surface at the focus point.Waves of energy travel out from the focus and reach the
Created by: babz04
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