severe weather
Fronts
pressure
Tornadoes
lightning
100

what is severe weather 

violent thunderstorms that cause damage

100

What is a Front

a boundary between the two air masses of different density humidity or temperatures

100

what matter is in the air

gas molecules

100

what is used to measure the wind speeds in a tornado

Fujita Scale (F)

100

in what weather do thunderstorms occur

warm weather

200

what are supercells 

very violent thunderstorms 

200

what is a cold front 

Cold air replacing warm air

200

true:false

there is less air molecules closer to the surface

false

200

how do tornado form

when there is an updraft going right by a downdraft

200

true:false 

lightning is bolts of electricity

true

300

what is the tool that measures how strong tornadoes are 

Fujita Scale

300

What are all the fronts and their symbols

The cold front has triangles facing upward the warm front has half circles facing upward the stationary front has triangles and half circles the triangles are facing upward and the half circles are facing downwards has triangles and half circles both facing upwards

300

what is density

the measure of the amount of matter in a given space

300

about how long do tornado last for

10 minutes

300

what types of hurricanes are there

typhoon,cyclone,huraciane

400

How do thunderstorms occur

When warm air rapidly Rises the movement can cause different parts of a cloud to become  electrically charge  which causes lightning 

400

what is an occluded front

Cold and warm air both move in but cold air is faster and pushes warm air forward

400

true:false

 it is harder to breathe at a higher altitude

true

400

what is a supercell tornado

a very strong tornado that can cause lots and lots of damage

400

what are hurricanes measured by

saffir-simpsons scale

500

what are hurricanes 

A type of tropical Cyclone large swirling storms with heavy Wind and Rain

500

what is a stationary front 

Cold and warm air meet but stays put

500

what is altitude

the height of an object relative to sea level

500

how many categories is the Fujita Scale go up to

1-5

500

northern vs. southern hemisphere

southern clockwise and northern counter clockise