Earthquakes
How is an earthquake measured?
a) Rizert Device
b) Righter Box
c) Rihon Instrument
d) Richter Scale
d) Richter Scale
What could happen as a result of a volcanic eruption?
a) landslides
b) fires
c) cooling of Earth's temperature
d) All of the above
d) All of the above
Which of the following is not a possible result of a tsunami?
a) Entire towns are destroyed.
b) Tectonic plates get stuck.
c) People are killed.
d) Houses are destroyed.
b) Tectonic plates get stuck.
How are earthquakes, volcanoes, and tsunamis alike?
a) all are caused by activity deep in the Earth.
b) all give off poisonous gases.
c) all cause a drop in the Earth's temperature.
d) all of the above.
a) all are caused by activity deep in the Earth.
What is magma?
a) melted, liquid rock beneath Earth's crust.
b) giant pieces of rock and soil that make up the surface of the Earth.
c) cracks in the surface of the Earth.
d) enormous ocean waves.
a) melted, liquid rock beneath Earth's crust.
Which of the following states a fact?
a) Earthquakes are easy to predict.
b) Volcanoes are less damaging than earthquakes.
c) Earthquakes aren't dangerous.
d) The Earth is constantly changing.
d) The Earth is constantly changing.
Explain what causes mudslides on a volcano.
The lava melts snow, which creates floods and mudslides.
Why don't you see a tsunami in the middle of the ocean?
a) It only happens near the shore.
b) It is deep by not high above the surface.
c) It hasn't built up enough strength yet.
d) All of the above.
b) It is deep by not high above the surface.
Which of the following states an opinion?
a) People should worry about earthquakes.
b) Underwater earthquakes cause the sea floor to move violently.
c) Clouds of dust and ash rise into the air during a volcanic eruption.
d) Tsunamis are the largest waves in the world.
a) People should worry about earthquakes.
What are continents?
a very large area of land, such as Africa or Asia
What was the largest earth ever recorded?
The largest earthquake ever measured was a 9.5 on the Richter Scale.
Explain the difference between landslides and mudslides?
a landslide is moving masses of soil and rock.
a mudslide is moving masses of wet soil.
How is a tsunami different than from an earthquake?
a.) a tsunami is measured on a Richter Scale.
b.) a tsunami causes an earthquake.
c.) a tsunami is caused by an earthquake or volcano.
d.) a tsunami doesn't cause any damage to property.
c.) a tsunami is caused by an earthquake or volcano.
What is the main idea of the book Earthquakes, Volcanoes, and Tsunamis?
a) Volcanic explosions can be so powerful that they can knock over entire forest.
b) Even small tsunamis can destroy houses.
c) One day, scientist will be able to warn people before earthquakes occur.
d) Earthquakes, volcanoes, and tsunamis are some of the most destructive forces of nature.
d) Earthquakes, volcanoes, and tsunamis are some of the most destructive forces of nature.
What are faults
cracks in Earth's crust along which movement occurs.
List or describe the 3 types of plate movement.
One plate goes underneath the other.
Plates rub side-by-side in the opposite direction.
Plates move apart from each other.
In this book, a volcano was compared to a bottle of soda. Explain this comparison.
A volcano is like a bottle of soda that has a plug in it. The magma pushes harder and harder against the plug. Finally, the plug blows off and the volcano explodes.
Why would a scientist want to study tsunamis?
To help warn people sooner, to understand tsunamis better, and because tsunamis are so powerful and cause such damage.
How will the early predictions of volcanoes, earthquakes, and tsunamis help people? Give two supporting ideas.
Scientists will be able to warn people sooner.
Scientific research teams can position quicker.
Families can plan their evacuation routes.
What are plates?
large sheets of rock that make up the Earth's crust.
Explain what an earthquake is.
The shaking of Earth's crust caused by underground vibrations.
What is a volcano?
Places on Earth's surface, where gases, ash, and lava spew onto the surface.
What is a tsunamis?
Enormous ocean waves caused by underwater earthquakes, landslides, or volcanoes.
What was the fastest speed that a tsunami has traveled?
320 kmph or 200 mph
What does the word erupt mean?
When a volcano throws out a lot of hot, melted rock called lava, as well as ash and steam.