Westly Whithers, a meteorologist, introduces the tools used to study and measure weather conditions. He explains that as a meteorologist he went to school to learn how to use instruments like a thermometer, barometer, anemometer, weather vane, rain gauge to measure air temperature, air pressure, wind speed, wind direction, and precipitation. He quizzes the viewer on identifying the instruments and their purposes before concluding that learning about weather can be fun.

1. Today’s Weather
is brought to you
by Westly Whithers

2. Westly Whithers
here to give you the latest about
our weather.
First, you need to know a little about me
and how I make my predictions.

3. Some call me a
weatherman but I went
to school to learn more
and became a ………
• Scientists who studies
and measures weather
conditions.

4. • Need to know how to use and
read the following instruments:

5. Thermometer
• measures air
temperature
Galileo’s Thermometer
Hot Fact
1593 Galileo Galilei invented the 1st
Thermometer (on the left). Then in
1714 Gabriel Fahrenheit invented
the 1st mercury thermometer with
a F° scale. In 1743 Andrus Celsius
created a thermometer with the
Celsius scale.

6. Barometer
• measures pressure
of the atmosphere
(air pressure)
Hot Fact- Evangelista Torricelli
invented the mercury barometer
in 1644.

7. Anemometer
• measures wind speed
Hot Fact- Measures wind in revolutions
per minute.
Aircraft crews need to know the speed
of the wind before taking off and landing.

8. Weather Vane or Windsock
• finds the wind’s
direction
Hot Facts -The first metal wind vane was a Life-size Greek God, Triton, that was placed in
Athens between 48 BC to 250 AD (This vane of Triton represented him traditionally with a human head and
upper body and the tail of a fish. He also held a wand in his hand pointing the direction from which the wind
blew.)

9. Rain Gauge
• measures the amount
of liquid precipitation
over a period of time
Hot Fact- In 1441 King
Sejong and his son invented
the first rain gauge used as
the official tool to assess
land taxes based on farmer’s
potential harvest.

10. Can you name the weather
instrument?
What does it do?

11. Weather Vane
Weather Vane
finds the wind’s direction

12. Can you name this weather
instrument?
What does
it do?

13. Anemometer
measures wind speed

14. Can you name this weather
instrument?
What does
it do?

15. Rain Gauge
measures the
amount of liquid
precipitation
over a period
of time.

16. Can you name this weather
instrument?
What does
it do?

17. Thermometer
measures air temperature

18. Can you name this weather
instrument?
What does
it do?

19. Barometer
measures pressure of the atmosphere (air pressure)

20. Now are you ready to explore
and learn more about weather
and the job of a meteorologist?
Your teacher has many
exciting activities for you!
Have Fun!
Westly
Slide show created by
Popienko 07