Volcanoes
What are mountains that open inward to molten rock below the earth's surface?
Volcanoes
What measures an earthquake's intensity?
Richter Scale
A major tropical storm with wine speeds of 74 miles per hour or greater is called what?
When a tornado touches the ground, the National Weather Service will issue a what?
Tornado Warning
The calmest part of the hurricane is called what?
The eye
Magma and lava are the exact same thing.
False
What is a break in the earth's crust called?
Fault
When a hurricane is definitely on its way, it is called what?
a hurricane warning
A tornado is shaped like a __________, wide at the top and narrow at the bottom.
Funnel
How many hurricane categories are there?
5
Volcanoes that have not erupted in a long time are called what?
Dormant volcanoes
A device that measures and records vibrations of the earth is called what?
A seismograph
What happens to a hurricane when it crosses land?
It becomes weaker
Tornados can occur in August. True or False?
True
How long do tornadoes last?
10-25 minutes
What is the most common type of volcano?
Composite Cone
If an earthquake measured 6.2 on the Richter Scale, there would not be a lot of damage. True or False. Explain.
False
When hurricanes form, they begin as what?
Tropical disturbance
Where do tornadoes occur the most?
Midwest
Spinning columns of air that begin as thunderstorms
What is the difference between lava and magma?
Lava is outside of the volcano and magma is inside the volcano
The part of the earth's surface directly above the starting point is called what?
Epicenter
Hurricane catergories are based on what?
Wind speeds
How do tornadoes form?
mixing of warm, moist air with dry air
Tornado "prime time" occurs during which months?
March-October