Earth's Surface
What are the large land masses on the Earth's surface called?
Continents
Where are some common locations on the Earth for earthquakes to occur?
Along the edges of continents, in the middle of the ocean
True or false: volcanoes only happen on land
False: underwater volcanoes are common
What hazards can earthquakes cause?
Collapse of buildings and other structures, fires from powerlines and gas lines
What do we call a long valley on the bottom of the ocean?
Ocean trench
What are large ocean waves caused by earthquakes called?
Tsunamis
Where are some common locations on Earth's surface for volcanoes to occur?
On the edges of continents, around the Pacific Ocean (Ring of Fire)
What kind of hazards can landslides cause?
Damage or burying things in its path
Where are ocean ridges found?
Mostly in the middle of the ocean, located near ocean trenches
What does an earthquake's magnitude describe?
The strength of the earthquake
What is the hot, molten rock that comes out of volcanoes called?
Magma, lava
What kinds of hazards can volcanic ash cause?
Worsening breathing problems, damage to plants and vegetation
Are mountain ranges found isolated, or close together in clusters?
Mountain ranges are large and closer together
What is the center of an earthquake's activity called?
The focus
What is it called when magma bursts from the surface of a volcano?
Eruption
What kinds of hazards can lava flow from a volcano cause?
Damage to things in its path, fires
Would we expect tsunamis to be common in area where earthquakes are common?
Yes
What does the Mercalli scale measure?
Earthquake magnitude
What comes out of a volcano during an eruption?
Magma, ash, volcanic gases
What hazards can be caused by a tsunami?
Flooding, moving debris