Earth
The outermost layer of earth is called the_________________.
What is the crust?
Volcanoes form when this rises through Earth's interior?
What is gas-filled magma?
Major earthquakes are caused by_______________.
What is pressure inside Earth?
Describe a volcano erupting_________________.
What is magma being forced out of an opening in the Earth's crust?
What instrument is used to record the motions produced by an earthquake?
What is a seismograph?
The three main materials that burst forth from a volcano are______________________.
What is lava, pieces of rock, and gas?
Where would earthquakes and volcanoes most likely occur?
What is the Ring of Fire in the rim of the Pacific Ocean?
The scale that measures the magnitude of an earthquake is called the ___________________.
What is a Richter Scale?
The Hawaiian islands were formed______________.
What is a volcanoe or volcanoes?
Earthquakes are most likely near____________.
What is the faults?
Dr. Rudolph is a seismologist. What does Dr. Rudolph study?
What is an earthquake?
Mount Arenal, a volcano in Costa Rica, is erupting. Heat is being released during the eruption. The source of the heat is___________________.
Earthquakes can cause________________.
What is a tsunami?
They can be constructive and destructive to the Earth's surface_____________________.
What is a volcanoe and an earthquake?
Over time, lava that flows out of a volcano can _________________.
What is form mountains?
The land can change by cracks in the Earth's surface caused by________________,
What is an earthquake?