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Weather Study Guide- Test Wednesday March 12th

Science Study Guide - Weather/Water Cycle/ Extreme Weather

·         What is weather? What is happening outside, around us in the atmosphere. Short term can change quickly.

·         Know the 4 major factors of weather:

             Wind

             Temperature

              The Water Cycle

              The Sun

·         People who study weather are called what?

              Meteorologist

·         What is it called when a meteorologist predicts the weather?

                 Forecast

·         Know the 4 types of precipitation.

            Rain

            Snow

            Hail

            Sleet

·         What is climate?

Weather patterns that last over a long period of time. ( Long Term)

·         Know the difference between weather and climate

Weather is short term, climate is long term.

·         What are the 3 basic climate zones?

 Polar

Tropical

Temperate

·         Why is it called the water cycle?

It is a never-ending process.

·         What percent of the earths water is fresh water?

3%

·         Know the steps of the water cycle and what each does.

·         See picture

·         What is the most common form of extreme weather in South Dakota?

Thunderstorms

·         What 4 things make a thunderstorm dangerous?

Rain

Hail

Wind

Lightning

·         What is it called when a funnel cloud forms and touches the ground?

Tornado

·         What area of the USA are Tornados most common?

Tornado Alley

·         How do we measure tornados?

We use the Fujita Scale. F0, F1, F2, F3, F4, F5- weakest to strongest

How do we measure Hurricanes? -

Saffir-Simpson Scale. Cat 1- Cat 2- Cat 3- Cat4- Cat5- weakest to strongest

·         What does the wind speed need to be at or above for a winter storm to be classified as a blizzard?

35 mph

·         What are dangers of a blizzard?

Wind, frost bite, low visibility, snow, cold, hypothermia

·         What is it called when you can not see during a blizzard because of too much wind and snow?

White out

·         What is drought?

When an area has not had any precipitation for several months

·         What is dry weather?

When an area has not had precipitation for several weeks

·         What is one of the major causes for extreme weather?

When cold air and warm air meet or mix.