Vocab Part 1
What is shaking of the Earth's crust called?
A. focus
B. earthquake
C. epicenter
B. earthquake
What are continent-sized slabs that make up the crust and upper mantle?
A. Crust
B. Mantle
C. Plates
C. Plates
What is Earth's hottest layer?
A. Crust
B. Mantle
C. Core
C. Core
If Earth's plates stopped moving, what might happen?
A. No more earthquakes
B. no new volcanoes or mountains
C. both A and B
C. both A and B
What forms when a volcano collapses into itself at its top?
A. Crater
B. Magma Chamber
C. Plate
A. Crater
What is the deepest layer of Earth called?
A. core
B. mantle
C. crust
A. core
What is the break in Earth's crust along which rocks move?
A. Epicenter
B. Fault
C. Focus
B. Fault
Earth's plates move very slowly across Earth's surface on a thin layer of partly melted what?
A. Core
B. Mantle
C. Volcanic Ash
B. Mantle
The 1964 earthquake in Alaska released more energy than the 1989 Loma Prieta earthquake in California. How do you think scientists know this?
A. They guessed
B. They measured and compared the energy from both earthquakes
C. They don't know this
B. They measured and compared the energy from both earthquakes
What type of mountain is made of lava layers that alternate with layers of cinder?
A. Cinder cones
B. Shield volcanoes
C. Composite volcanoes
C. Composite Volcanoes
The thickest layer, which is made of solid and melted rock is called ________.
A. core
B. crust
C. mantle
C. mantle
What instrument records earthquake waves?
A. Seismograph
B. Core
C. Epicenter
What can scientists do to earthquakes using seismographs, the Mercalli scale, and the Richter scale?
A. measure
B. predict
C. weaken
A. Meaure
There is a group of volcanoes in the Pacific Ocean basin. This group is called The Ring of Fire. Why is Ring of Fire a good name?
A. Because of the large number of volcanoes; one plate moves down the mantle where it melts; magma rises through the vents, forming volcanoes
B. Because it is a cool name
C. Because scientists would be able to identify the volcanoes easier with a name that is more exciting
A. Because of the large number of volcanoes; one plate moves down the mantle where it melts; magma rises through the vents, forming volcanoes
What is an underground holding pool for hot magma called?
A. magma chamber
B. seismograph
C. vent
A. magma chamber
The point on Earth's surface right above the focus of an earthquake is called the __________.
A. fault
B. epicenter
C. seismograph
B. epicenter
What is the underground point where an earthquake first starts?
A. Fault
B. Focus
C. Crust
B. Focus
California has more than 20,000 earthquakes each year because there is a large what running through the state?
A. Epicenter
B. Fault
C. Crater
B. Fault
What is an observation?
A. What you think
B. What you see
C. How you feel
B. What you see
What is melted rock that flows out onto Earth's surface?
A. Vent
B. Lava
C. Magma
B. Lava
The layer of Earth that includes land and the ocean floor is _________.
A. crust
B. mantle
C. core
A. crust
Different kinds of what form different kinds of volcanic mountains?
A. Eruptions
B. Cinders
C. Earthquakes
A. Eruptions
Some volcanoes form new what as plates move apart and magma rises to the surface of the crust?
A. Volcanoes
B. Ocean Floor
C. Earthquakes
B. Ocean Floor
What is an inference?
A. How you feel
B. What you see
C. What you think
C. What you think
How can volcanoes be useful to people?
A. they add minerals to the soil
B. they spread ash
C. they cause huge waves
A. they add minerals to the soil