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Wild, Wonderful, Wacky Weather. Let’s watch this video to learn more about weather:

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Presentation on theme: "Wild, Wonderful, Wacky Weather. Let’s watch this video to learn more about weather:"— Presentation transcript:

1 Wild, Wonderful, Wacky Weather

2 Let’s watch this video to learn more about weather: climate.htm

3 Define these terms in your notebook: Weather Climate

4 Meteorology- The study of weather Temperature How hot or cold it is Wind Direction Is the wind blowing north, south, east, or west? Cloud Cover Are there lots of clouds out? Not many? Wind Speed How fast is the wind blowing? Precipitation Is it raining? Snowing? Sleeting? Examples:

5 Temperature

6 Weather Tools Temper ature Measure d with a thermom eter Copy this into your notebook!

7 Let ’ s Experiment ! Let ’ s take a look at these thermometers. What do you notice about them? When measuring temperature, do you measure from the Celsius side or the Fahrenheit side? What temperature does this read?

8 Let ’ s Experiment ! We are going to find out how the thermometer works with an experiment. You and your table group are going to travel around to three different stations: Ice Surface: Putting the thermometer in an ice cup Heat Surface: Testing the thermometer outside Room Temperature Surface: Testing the thermometer inside At each station, your job is to record the temperature for the surface. When you get to the station, expose the thermometer to the surface. Leave the thermometer there for 30 seconds, then pull the tool out. Read and record the temperature as soon as you pull it out! When you hear my bell, you will rotate to the next station. Any inappropriate behavior will result in a circle and sitting out!

9 Temperature Observations and Results Surface TypeSurface DescriptionsTemperatures Cold Surface Room Temperature Surface Outside Surface What can we infer about temperatures and thermometers?

10 Weather Tools Temper ature Measured with a thermome ter Rises with hot weather, lowers with cool weather Copy this into your notebook!

11 Wind

12 Is wind really that important, anyway? Yes, wind is VERY important! It can be something that cools you down on a hot day, or it can be something that destroys buildings!

13 Check out this video about wind:

14 Weather Tools Temper ature Measured with a thermome ter Rises with hot weather, lowers with cool weather Copy this into your notebook! Wind Direct ion Measured with a wind vane

15 Wind Direction Wind always blows north, south, east, or west. Draw a compass in your notebook: For the most part, the wind blows from the west to the east. Wind is air moving from an area of high pressure to low pressure.

16 We live here What do you notice about the wind direction for the world? What do you notice about the wind direction for North America? Wind Direction Patterns for the World

17 Weather Tools Temper ature Measured with a thermome ter Rises with hot weather, lowers with cool weather Copy this into your notebook! Wind Direct ion Measured with a wind vane Moves from an area of high pressure to low pressure

18 Wind Speed

19 Weather Tools Temper ature Measured with a thermome ter Rises with hot weather, lowers with cool weather Copy this into your notebook! Wind Direct ion Measured with a wind vane Moves from an area of high pressure to low pressure Wind Speed

20 Wind Speed MATTERS! Strong winds can damage houses and buildings, and they can even kill people!

21 How do we measure wind speed? With an anemometer. What are the differences between this anemometer and the one we saw outside? An ANEMOMETER measures wind speed. The cups catch the wind, turning a dial attached to the instrument. The dial shows the wind speed.

22 After the wind is measured with an anemometer, meteorologists turn to the Beaufort scale. The Beaufort scale gives a good indicator of the damage that wind can cause. ForceDescriptionWind SpeedPossible Effects 0Calm0 km/hChimney smoke rises straight up 1Light air3 km/hSmoke drifts gently 2Light breeze9 km/hLeaves rustle, wind felt on face 3Gentle breeze15 km/hLeaves and twigs on trees move 4Moderate wind25 km/hDust and paper raised from ground 5Fresh wind35 km/hSmall trees start to sway 6Strong wind45 km/hLarge branches move 7Near gale56 km/hWhole trees sway 8Gale68 km/hDifficult to walk into wind 9Severe gale81 km/hBranches and slates blown off 10Storm94 km/hHouses damaged; trees uprooted 11Severe storm110 km/hSerious damage to houses 12Hurricane118 km/hWidespread damage BEAUFORT SCALE Meteorologists record the wind speed on the anemometer, then they plug their findings into the “wind speed” category. Why is it so important that they know the possible effects of the wind speed? The Beaufort scale was originally created to see the wind effects on water. Later, they added a “land” category too.

23 Here’s a visual of the Beaufort Scale These winds rarely happen on land. Typically, they are only seen on water.

24 What force would these pictures measure on the Beaufort Scale? This would be a 0-1 on the Beaufort Scale.

25 Weather Tools Temper ature Measured with a thermome ter Rises with hot weather, lowers with cool weather Copy this into your notebook! Wind Direct ion Measured with a wind vane Moves from an area of high pressure to low pressure Wind Speed Measured with an anemomete r Uses the Beaufort Scale to determine the wind effects

26 Rain

27 Weather Tools Temper ature Measured with a thermome ter Rises with hot weather, lowers with cool weather Copy this into your notebook! Wind Direct ion Measured with a wind vane Moves from an area of high pressure to low pressure Wind Speed Measured with an anemomete r Uses the Beaufort Scale to determine the wind effects Precip itatio n The amount of falling water : rain, sleet, snow, or hail

28 High in the skyAs it is falling through the airOn the ground Snowfrozen Sleetliquidfrozen Freezing Rainliquid freezes on contact Rain/ Drizzle liquid Hail Begins as a liquid but is thrust up into cold air and becomes frozen frozenfrozen but begins to melt on contact Types of Precipitation

29 Think like scientists! With your table groups, discuss ways to measure rainfall, or precipitation.

30 How do we measure precipitation? With a rain gauge. A RAIN GAUGE measures the amount of rain that has fallen over a specific time period.

31 Weather Tools Temper ature Measured with a thermome ter Rises with hot weather, lowers with cool weather Copy this into your notebook! Wind Direct ion Measured with a wind vane Moves from an area of high pressure to low pressure Wind Speed Measured with an anemomete r Uses the Beaufort Scale to determine the wind effects Precip itatio n The amount of falling water : rain, sleet, snow, or hail Measured with a rain gauge

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