Download 511563d195b77Science_9.3

Standards
Science 6.4 e Students know differences
in pressure, heat, air movement and
humidity results in a change in weather.
Anticipatory Set
Suppose you lived for an entire year near the
equator. It would be very different from where
you life now. The weather, amount of sunlight,
and seasons would be new to you. You would be
living in another climate region.
Language of the
Discipline
Rain Forest
Humid subtropical
Savanna
Subarctic
Desert
Tundra
Steppe
Permafrost
Chaparral
Input/ Climate Regions
Scientists classify
climates according to
2 major factors:
Temperature and
precipitation
There are 6 main
climate regions
Tropical rainy
Dry
Temperate
continental
Polar
Temperature marine
Highlands
Tropical Rainy Climates
The tropics have 2 types of rainy climates: Tropical
wet and tropical wet-and dry
Often have afternoon thunderstorms which are
triggered by midday heating.
Prevailing winds- trade winds bring moisture from
the oceans
Rain forests contain half the worlds species of land
plants and animals
Tropical Wet-and-Dry
Receive less rain that tropical climates
They have distinct dry and rainy seasons
Savannas
Florida’s southern tip
Dry Climates
Dry= the amount of precipitation that falls is less
than the amount of water that could potentially
evaporate.
Includes arid and semiarid climates
Arid- deserts can be hot and sandy others can be
cold and rocky. Only specialized plants can survive
the dryness and extremes of hot and cold.
Deserts- receive less than 25 centimeters of rain per
year
Semiarid
Steppe is dry but gets enough rainfall for short
grasses and low bushes to grow.
Prairie or grassland
Great Plains of the United States are an
example.
Temperate Marine
Climates
3 types:
Marine West Coast- coolest temperatures, humid ocean
air brings mild, rainy winters. Thick forests grow here
Mediterranean – Drier and warmer climates. Chaparral
vegetation grows there.
Humid subtropical- wet and warm but not as constantly
hot. Winters are mild (more rain than snow)
All 3 types have mild winters
Temperate Continental
Climates
Only found on continents in the Northern
Hemisphere and include humid continental and
subarctic.
Humid Continental- shifting tropical and polar air
masses bring constantly changing weather. They
receive moderate amounts of rain the summer.
Small amounts of rain or snow in the winter
Subarctic
Subarctic climates lie north of the humid
continental climates. Summers are short and
cools. Winters are long and bitterly cold.
Wood products are an important part of this
economy. Large mammals live in the forest as
well.
Polar Climates
Polar climate is the coldest climate region and
includes the ice cap and tundra climates.
Ice Cap- Greenland and Antarctica. The average
temperature is below or always at freezing. It is
always covered in snow or ice and the air is dry.
Tundra- Short, cool summers are followed by bitter
winters. Tundra soil stays constantly frozen
(permafrost). Plants: mosses, lichens and
wildflowers
Highlands
Temperature falls as altitude increase, so
highland regions are colder than the regions that
surround them.
Increasing altitude produces climate changes
Decreasing altitude produces climate changes
Mount Rainer in Washington is an example
Modeling
I am going to show you how to fill in the
worksheet. Lets look at the first climate region.
We are going to fill in our logical notes by
answering the questions located on the left side
of the worksheet.
I am going to model how to correctly fill in
Tropical Rainy Climates
Checking for
Understanding
Fill in your logical notes for the “Dry” climate
region.
Guided Practice
Independent Practice
Guided Practice – complete temperate marine and
temperate continental on your worksheet.
Stop! Have your worksheet/notes checked.
Independent Practice: Complete the rest of your
worksheet/logical notes.