A large "O" shaped storm with heavy rain and strong winds.
100
what are tornadoes known as?
twisters
100
What is severe weather?
An event different from the usual weather pattern.
It happens rarely.
100
How do blizzards form?
The cold air that comes from the north collides with warm air coming from the south.
200
what temperatures can blizzards occur in?
20 degrees and below
200
In a hurricane storm winds must be over what miles per hour
75 mph
200
Where do most tornadoes occur
Tornado Alley
200
What is erosion
Erosion is the process by which the surface of the Earth gets worn down.
200
What are some negative affects of a tornado
Plants are uprooted.
Trees can be pulled out of the ground and carried to another location.
Organisms that live in or near these uprooted trees need to relocate.
300
People aren't able to see up to how many miles infront of them?
1/4 mile
300
What is the strongest part of a hurricane
eye wall
300
wind speeds may reach what in a tornado
300 mph
300
What is an ecosystem
An ecosystem includes all of the living things (plants, animals and organisms) in a given area, interacting with each other, and also with their non-living environments (weather, earth, sun, soil, climate, atmosphere).
300
What are some positive affects of a tornado?
The loss of plants caused by a tornado can allow new species of plants to grow in the cleared area.
Gives people a greater appreciation for our planet and neighborhoods
400
no falling snow, snow from the ground is blown by the strong winds.
Ground Blizzard
400
What is the strongest category of a hurricane?
category 5
400
How wide may a tornado get?
50 miles long
400
How do blizzards affect nature?
snow is too heavy for branches, falls onto the ground which can lead to a ground blizzard
snow can protect the pine trees and other plants, acting as a blanket
400
What scale is used to measure tornadoes? and give a characteristic of a F5 tornado
Fujita scale
Trees are debarked, strong framed houses are taken off their platfroms
500
What is a an example of how people are affected by blizzards
Traffic may cause people to be late for work and drive in dangerous conditions.
People may loose money because they aren't working or not be able to leave their house in a blizzard.
500
What is the calmest part of a hurricane
The eye
500
How do tornadoes form?
Warm air from the gulf of Mexico and cool dry air from Canada will meet and create a change in wind direction and an increase in wind speed.
500
Why do tornadoes look like they are spinning?
Dust and debris will pick up from the ground due to the spinning wind.
We see a spinning tornado as a result from the objects floating within the funnel
500
When do most tornadoes occur?
Tornadoes can happen at any time of the year at any time of the day.
Most tornadoes happen during the summer time when the atmosphere is hot and dry.