Transcript Precipitation

Lesson 7 Biomes
What are the six major biomes found on Earth?
What factors determine the type of biome found
in an area?
Do Now
rainforest
Word Splash
desert
grassland
deciduous forest
tundra
taiga /boreal forest
Essential Question
1. What are the six major biomes found on
Earth?
2. What factors determine the type of biome
found in an area?
Vocabulary
Biome
A group of land ecosystems with similar
climates and organisms
Canopy
large leaves of trees that form a roof like
projection or covering
shrubs and plants growing beneath the
Understory the
main canopy of a forest.
Savanna
Permafrost
grassland region with scattered trees,
grading into either open plain or woodland,
usually in subtropical or tropical regions.
permanently frozen soil below surface
Assignment
1. Read pages 58-67.
2. Complete the graphic organizer for each
biome.
Rain Forest Biome
Location
Climate
Temperature
Precipitation
Vegetation
Animals
Rain Forest Biome
Location
•found in the equatorial
regions of South America
and Africa
Climate
Temperature
•little temperature variation
•warm
Precipitation
•large supply of precipitation,
high humidity
Vegetation
•dense and diverse
assortment of vegetation
Animals
•many of the animals are
arboreal tree dwellers (never
come down to the surface)
•Monkeys, snakes, insects,
parrots, bats
Desert Biome
Location
Climate
Temperature
Precipitation
Vegetation
Animals
Desert Biomes
Location
•Western United States
•Parts of Central and South
America
•Parts of Africa and Asia
•Australia
Vegetation
•low diversity of plants
•Cacti and sparse grass
Climate
Temperature
•hot days
•cold nights
Precipitation
•less than 25cm rain year
•little precipitation, often in heavy
showers
Animals
•animals may obtain water
from food, are nocturnal
(active at night),
•Lizards, snakes, small
rodents, insects
Grassland Biome
Location
Climate
Temperature
Precipitation
Vegetation
Animals
Grassland Biome
Location
•found in central North America
•Central Asia
•Southern Africa
•Australia
•Examples of savannas –
Serengeti Plains (Tanzania); llanos
(Venezuela and Columbia);
Cerrado (Brazil); pine savannas
(Belize/ Honduras)
Vegetation
•long or short grasses
•thick humus layer
• fire common and necessary to
renew the biome by burning out
shrubs while the grass survives
Climate
Temperature
•Temperate to subtropical areas
Precipitation
•25-75 cm of rain a year
Animals
•Herbivores
•Bison
•rabbits
•Gophers
•predators - wolves, coyotes,
rattlesnakes
Deciduous Forest Biome
Location
Climate
Temperature
Precipitation
Vegetation
Animals
Deciduous Forest Biome
Location
•found in eastern North America,
•western Europe
•eastern Asia
•Chile
Vegetation
•broad-leaved trees (which shed
leaves), soil rich due to
decomposition of leaf litter
• trees form a canopy but enough
light filters through to provide
energy for a lower layer of trees
and shrubs
•Oak, maple, beech, shrubs
Climate
Temperature
•temp. vary greatly
•Cold winters
•Warm summers
Precipitation
•Wet summers
•50cm per year
Animals
•larger number of producers
supports a large number of
consumers
•Fox, rodents, owls, hawks, insect,
deer
Taiga/Boreal Forest Biome
Location
Climate
Temperature
Precipitation
Vegetation
Animals
Taiga/Boreal Biome
Location
•found in broad region below
the tundra in North America,
Europe and Asia
Vegetation
•coniferous trees (spruce, fir,
pine etc.)
•little vegetation found near the
ground because of low light levels
and soil is acidic due to needle
decomposition
Climate
Temperature
•Cold winters
•Summers warm
Precipitation
•Snow
•Summers rainy
Animals
•deer,
•Moose
•Caribou
•Lynx
•Hares
•fox
Tundra Biome
Location
Climate
Temperature
Precipitation
Vegetation
Animals
Tundra Biome
Location
found in the northern
hemisphere above the tree
line
Climate
Temperature
•Cold
•average winter -30° F
•average summer 37-54° F
Precipitation
•little precipitation
•Dry
•permafrost
Vegetation
•Mosses
•Grasses
•Shrubs
•Small trees (willow)
Animals
•Arctic fox
•Caribou
•polar bear
•migratory birds
•penguins
Mountains And Ice
• not part of major biome
• mountain ranges and land covered in ice
Assignment
1. Read science explorer page 128.
2. Complete science explorer page 130 and
131.
Answer the essential questions
1. What are the six major biomes found on
Earth?
2. What factors determine the type of biome
found in an area?
Ticket out the door
• Complete science explorer page 132.