The document discusses different types of weather and temperature scales. It describes common weather conditions like sunny, windy, rainy. It then explains the three main temperature scales - Celsius, Fahrenheit and Kelvin - including who invented them and how they work. Formulas are provided for converting between the different scales. Finally, there is a brief overview of different world climates.

1. WEATHER & CLIMATE

2. WHAT’S THE WEATHER LIKE
(TODAY??
IT’S SUNNY
IT’S WINDY
IT’S STORMYIT’S SNOWY/
SNOWING
IT’S RAINY /
RAINING
IT’S CLOUDY

3. WHAT’S THE WEATHER LIKE
(TODAY)?
IT’S PARTLY
CLOUDY
THERE’S A
RAINBOW
IT’S SLEETY/
SLEETING
IT’S HAILINGIT’S FOGGY

4. WHAT’S THE TEMPERATURE?
CELSIUS FARENHEIT

5. WHAT’S THE TEMPERATURE?

6. WHAT’S THE TEMPERATURE?TEMPERATURE
HOTWEATHER

8. TEMPERATURE SCALES
Temperature is the level of heat in a gas, liquid, or solid. Three scales are
commonly used for measuring temperature. The Celsius and Fahrenheit scales
are the most common. The Kelvin scale is primarily used in scientific
experiments.
Celsius Scale
The Celsius scale was invented in 1742 by the Swedish astronomer, Anders
Celsius. This scale divides the range of temperature between the freezing and
boiling temperatures of water into 100 equal parts. You will sometimes find
this scale identified as the centigrade scale. Temperatures on the Celsius scale
are known as degree Celsius (ºC).
Fahrenheit Scale
The Fahrenheit scale was established by the German-Dutch physicist, Gabriel
Daniel Fahrenheit, in 1724. While many countries now use the Celsius scale,
the Fahrenheit scale is widely used in the United States. It divides the
difference between the melting and boiling points of water into 180 equal
intervals. Temperatures on the Fahrenheit scale are known as degree
Fahrenheit (ºF).

9. TEMPERATURE SCALES
Kelvin Scale
The Kelvin scale is named after William Thompson Kelvin, a British physicist
who devised it in 1848. It extends the Celsius scale down to absolute zero, a
hypothetical temperature characterized by a complete absence of heat energy.
Temperatures on this scale are called Kelvins (K).
Converting Temperatures
It is sometimes necessary to convert temperature from one scale to another.
Here is how to do this.
To convert from ºC to ºF, use the formula: ºF = ºC x 1.8 + 32.
To convert from ºF to ºC, use the formula: ºC = (ºF-32) ÷ 1.8.
To convert from K to ºC, use the formula: ºC = K – 273.15
To convert from ºC to K, use the formula: K = ºC + 273.15.
To convert from ºF to K, use the formula: K = 5/9 (ºF – 32) + 273.15.
To convert from K to ºF, use the formula: ºF = 1.8(K – 273.15) + 32.

10. Comparing Temperatures
Here are some common comparisons between temperatures on the Celsius
and Fahrenheit scales.
TEMPERATURE SCALES

11. WORLD CLIMATE
Polar: extremely
cold and dry
Temperate: not
too hot and not
too cold
Arid/Desert:
hardly any rain.
Hot days, cool
nights.
Tropical: warm all
year, alternating
wet and dry
seasons.
Mediterranean/Wa
rm: long hot
summers and mild
winters.
Mountain: the
higher you go, the
colder you get.

12. Mediterranean: dry and warm/hot
summers and cool to mild and wet
winters.
Oceanic: has regular snowfall in the winter
months. Cool summers and cool winters.
Mountain: wet and cold in winter. Subtropical: warm summers and
warm winters.