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Learning about the Weather By Kimberly Salfarlie Grade 3

Sunny Days 4 Click the pic The sun’s relationship to earth determines the season. About one million Earth’s could fit inside the sun. Photosynthesi s is a process which uses the sun’s light to grow flowers. It takes 8 minutes for the sun’s light to reach Earth.

5 The clouds in our sky!

6 High Altitude Clouds Cirrus clouds are thin and wispy. Cirrocumulus clouds have a patch like appearance. Cumulonimbus clouds produce lightning, heavy rains, hail, strong winds and tornados. Multi –layer clouds Nimbostratus clouds are very dark associated with large areas of precipitation. Above 18,000 feet

7 Stratus are generally the lowest (besides fog) and don’t have much definition. Cumulus are puffy with distinct edges and have a bit of height Stratocumulus are generally clusters and have a popcorn like appearance. Mid-level clouds Altostratus covers the sky uniformly and it makes it hard to see individual features. Altocumulus are either patchy & scattered or linear bands.

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9 Rain drops can fall at speeds of about 22 miles an hour. Rain is recycled water evaporated from our worlds lakes, rivers, oceans, etc. Rain drops do not fall in a tear drop shape, they originally fall in the shape of a flat oval Rain starts off as ice or snow crystals at cloud level. Click the pic Click the pic

Lightning 10 Click the pic Lightning bolts travel at speeds of up to 60,000 miles per Florida is the lightning capital of the United States Temperatures in the path of a lightning bolt can reach as high as 50,000° F Struck by Lightning still survive More than 70% of all people

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Snow 13

14 The record snow fall in one season is in Buffalo in 1977 (199.4 inches) There are five different shapes of snowflakes The largest snowflake recorded was 15 inches wide and 8 inches thick. Click the pic

Hurricane 15

16 Hurricane Fast Facts Hurricanes are rated from 1-4. A category 4 is the strongest hurricane. There were 3 hurricanes in the 2009 season, and 8 in the 2008 season A Hurricane has to be category 3 or higher in order to be considered a major hurricane. In order for a storm to be classified as a hurricane it must have winds of at least 75 mph. Click the pic

Tornado 17 Click the pic

18 The tornado is the most violent of all earth’s storms.

What instrument measures the intensity of a tornado? 19 Berometer Fijita scale Thermometer Rictor scale

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22 Which natural disaster can produce the fastest winds on earth? C) tornado A) Tsunami B) Cyclone D) Hurricane

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25 Which one of the following is NOT a type of cloud? A) Tenorstratus C) Stratus B) Cumulus D) altocumulus

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28 Which natural disaster cannot be caused by shifts in tectonic plates? B) avalanche D) Hurricane A) Volcanic eruption C) earthquake

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31 On average what are your chances of being struck by lightning in a given year? D) 1 in 7,000,000 C) 1 in 700,000 B) 1 in 70,000 A) 1 in 7,000

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34 What is the most dangerous type of avalanche? D) Wet avalanche B) Looses avalanche C) Ice fall avalanche A) Dry slab avalanche

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37 Which of the following islands was completely destroyed during an 1893 hurricane? A) Sumatra, Indonesia B) Bimini, Bahamas C) Rotuma, Polynesia D) Hog Island, New York

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40 Rain drops usually fall in what shape? A) It varies B) square C) oval D) Tear drop

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43 Who discovered the seven distinct colors of the visible rainbow? A) Poe B) Newton C) Van Goah D) Jeeter

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46 How often does lightning occur worldwide? A) 25 to 50 times per second C) 250 to 500 times per hour B) 50 to 100 times per second D) 500 to 1,000 times per day

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49 How many different shapes of snowflakes are there? A) five C) 100 B) infinateD) 27

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52 The sun’s relationship to _______ determines the season. A) The cloudsC) earth B) moon D) The stars

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