Presentation on theme: "Rapid Changes on Earth: Earthquakes, Volcanoes, Landslides"— Presentation transcript:
1Rapid Changes on Earth: Earthquakes, Volcanoes, Landslides Chapter 6Study Guide
2Magma is… The point underground where an earthquake starts. Molten rock beneath the Earth’s surface.Molten rock that reaches the Earth’s surface.A sudden movement of the part of the Earth’s crust.
3A landslide is… A sudden movement of a part of the Earth’s crust. The place where an earthquake is felt most strongly.A sudden movement of loose rock and soil down a steep slope.The study of earthquakes.
4A volcano is… A sudden movement of part of the Earth’s crust. Molten rock beneath the Earth’s surface.Sudden movement of loose rock and soil down a steep slope.An opening in the Earth’s crust through which hot ash, gases, and molten rock escape.
5An earthquake is… A sudden movement of part of the Earth’s crust. The place where movements of the Earth’s crust usually take place.The point underground where an earthquake starts.The study of earthquakes.
6A tsunami is… The place where movement of the Earth’s crust happens. Caused by an earthquake that happens in the ocean floor.Molten rock beneath the Earth’s surface.Molten rock that reaches Earth’s surface.
7A fault is …The place on the Earth’s crust where movement usually takes place.The point underground where an earthquake starts.An earthquake on the ocean floor.Who gets the blame when there is trouble.
8Seismology is … The study of sizes. The study of landslides. The study of earthquakes.The study of volcanoes.
9The focus of an earthquake is… A sudden movement along part of the Earth’s crust.The point underground where an earthquake starts.The place where an earthquake is felt most strongly.The study of earthquakes.
10Lava is … The study of volcanoes. Molten rock that reaches Earth’s surface.Molten rock beneath Earth’s surface.A kind of hot cake dessert.
11The epicenter is … Where you watch your favorite sport. What happens when an earthquake occurs in the ocean floor.The study of earthquakes.The place where an earthquake has the greatest intensity.
12Earthquakes and volcanoes change the Earth’s surface… In a year.Suddenly.Rarely.In cycles.
13A very strong to violent earthquake would… Not be felt by most people.move small objects.Shake trees.Crack the ground.
14The effect of a landslide on a hillside where people live would … Start a fire.Cause heavy rain.Damage houses.Cause sudden movement.
15Volcanoes can affect Earth’s surface … For hundreds of miles.At the foot of the volcano.At the base of the volcano.On the north side of the volcano.
16Which event causes a sudden change on Earth? ErosionRainEarthquakeGlobal warming.
17During an eruption… A very high wave crashes on the shore. A mudslide moves down a hillside.Rock moves suddenly along a fault.Melted rock and gasses come out of a volcano.
18During an earthquake… A high waves comes ashore A mudslide moves down a hillside.Rock moves suddenly along a fault.Melted rock and gases come out of a hole in the surface.
19The study of earthquakes is called… EcologyGeologyHydrologyseismology
20Magma is found … On muddy slopes. In faults. Beneath the earth’s surface.All over the Earth’s surface.
21Which words describe similar things? Magma and mud.Magma and lava.Lava and mud.Rock and mud.
22A land slide is… An earthquake. A lava flow. A slow change on Earth’s surface.A sudden movement of rock and soil down a hill.
23Wildfires can cause landslides on steep slopes because … They heat up and melt the rocks.They heat rocks and cause earthquakes.They destroy trees and bushes that hold soil in place.They leave lots of ashes.
24Seismologists measure the magnitude of an earthquake by… Using a thermometer.Weighing it with a scale.Using a meter stick.Using a seismograph or Richter scale.
25Label the volcano using these words: pressure, volcano, erupts, magma, lava, hot ash, gases
26Mudslides are different from rockslides because… Mudslides are caused by people and rockslides are caused by animals.Mudslides are caused by heavy rain or the sudden melting of snow and rockslides occur when rocks suddenly fall from steep cliffs.
27Landslides can be prevented by… Limit where people are allowed to build houses or businesses.Build support walls to change the direction of landslides.Consult with an expert before building to learn if landslides are likely at the location.