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Science 4th grade, unit 5
El Tomillar 1
Januay, 2013
HABITATS
SCIENCE 4th grade
UNIT 5
by J. CESAR BRAZO MUR
Science 4th grade, unit 5
El Tomillar 2
Januay, 2013
All LIVING THINGS need each other to survive.
LIVING THINGS are food for other living things.
When they die, fungi, bacteria and worms release their remains back to the soil
Science 4th grade, unit 5
El Tomillar 3
Januay, 2013
In a FOOD CHAIN, each living organism gets food from other living organisms
plantsProduce their own food from the soil, air and the Sun's energyPRODUCERS
Get food fromother living things
CONS
UMER
Sanimals
PREYSare eaten byother animals
(predators)
PREDATORScapture and eatother animals
(preys)
fungi, bacteria...
DECOMPOSERSEat dead animals and plants.They release nutrients back to the soil
Science 4th grade, unit 5
El Tomillar 4
Januay, 2013
Snailseat plants.
It is a prey forthe bird
Birdseat sails.
It is a preyfor the fox Foxes
eat birds.They arepredators
Bacteriadescompose the remains
of all these living things and return organic matter back
to the soil
PRODUCER
CONSUMERS
DECOMPOSERS
Plantsproduce their own food
from the soil, air andenergy from the Sun
Example of forest food chain...
Science 4th grade, unit 5
El Tomillar 5
Januay, 2013
Example of ocean food chain...
Phytoplanktonformed by algae that
produce their own food
Zooplanktongets food from phytoplankton
Small fisheat zooplankton
Dolphinsget food from
small fish
Orca whaleseat dolphins
PRODUCER
CONSUMERS
Bacteria andother microorganisms
descompose the remains of living organism and return
organic matter back to the sea
DECOMPOSER
Science 4th grade, unit 5
El Tomillar 6
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ADAPTATIONSLiving things need to adapt to their environments to survive
Physicaladaptations
Behaviouraladaptations
The chamaleon
changes its color
Some birds
migrate from one
place to another
are changes in an animal'sbody that helps it
to find food, defend itself and reproduce
are changes in an animal'sbehaviour that helps it
to interact with it's habitat
Science 4th grade, unit 5
El Tomillar 7
Januay, 2013
POPULATIONS are groups of organisms of the same species which live together in the same geographical area
populationof rabbits
populationof birds
populationof ants
populationof foxes
Science 4th grade, unit 5
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COMMUNITIES is a group of different species that live together and interact in the same geographical area
Different species
Science 4th grade, unit 5
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A HABITAT is a place that gives an organism food, shelter, water, oxygen and a place to live.
LAND HABITATS:- DESERTS- RAINFORESTS- GRASSLANDS- FORESTS- ARTIC REGION
WATER HABITATS:- OCEANS and SEAS- PONDS, LAKES and RIVERS
Science 4th grade, unit 5
El Tomillar 10
Januay, 2013
LAND HABITATSanimals and plants
Animals: Lizards and snakes, spiders, scorpions...Plants: cacti and resistant plants
Animals: Lizards, monkeys, parrots, etcPlants: Lots of trees and different plants
Animals: Polar bear, artic foxes, seals...Plants: No trees or plants
Animals: Zebras, lions, cheetahs, antelopes...Plants: Mainly grasses and only some trees
Animals: Foxes, mice, owls, bears, rabbits, etcPlants: Evergreen trees mainly
DESERTS
RAINFORESTS
ARTIC REGION
GRASSLANDS
FORESTS
Science 4th grade, unit 5
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Great variations
RESUME OF THE MAIN CHARACTERISTICS OF LAND HABITATS
Science 4th grade, unit 5
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WATER HABITATSTHEY ARE DIVIDED INTO...
SALTWATERhabitats
FRESHWATERhabitats
SEAS and OCEANS RIVERS: Streams of running water
LAKES: Water with land all around it
PONDS: Small area of water. This water doesn't move (like in rivers)
We find: Saltwater fish Algae
Some birds Small invertebrates
Science 4th grade, unit 5
El Tomillar 13
Januay, 2013
sardine, tuna,
shark...seagull albatross
small invertebrates
trout salmon carp..
turtles, frogs...
dragonfly
mosquito...
duck crane, etc.
Science 4th grade, unit 5
El Tomillar 14
Januay, 2013
CHECKPOINTAt the end of the unit, I must know...
- What do living organisms get from the food chain?
- Why do organisms need each other to survive?
- How are organisms classified in the food chain?
- What is the difference between producers, consumers and decomposers?
- What are the two types of producers and the difference between them both?
- Can you give some examples of forest food chain and ocean food chain?
- Why do animals adapt to their environment and what types of adaptations have you studied? (definition of both)
- Can you say the definition of populations and communities?
- Can you say the definition of habitat?
- What are the main land and water habitats? What are the main characteristics of each one and what plants and animals can we find there?