ecosystems - natural science
TRANSCRIPT
Units 3 and 4
ECOSYSTEMSNatural Science
5 Year
Marta
What do I know?
What do I know?
ENVIRONMENT
OUR ENVIRONMENT
PHYSICAL ENVIRONMENT
BIOLOGICAL ENVIRONMENT
ENVIRONMENT
OUR ENVIRONMENT
PHYSICAL ENVIRONMENT
BIOLOGICAL ENVIRONMENT
ENVIRONMENT
It is the combination of the NON-LIVING components
OUR ENVIRONMENT
PHYSICAL ENVIRONMENT
BIOLOGICAL ENVIRONMENT
ENVIRONMENT
It is the combination of the LIVING components
It is the combination of the NON-LIVING components
OUR ENVIRONMENT
FACTORS THAT AFFECT THE PHYSICAL ENVIRONMENT
FACTORS THAT AFFECT THE PHYSICAL ENVIRONMENT
LIGHT TEMPERATURE SALINITY
•It is a group of individuals with similar characteristics that can reproduce within their group.
•For example: frogs, dogs, cats, parrots…
A SPECIES
• •
• •
A BIOLOGICAL ENVIRONMENT
•It is a group of individuals with similar characteristics that can reproduce within their group.
•For example: frogs, dogs, cats, parrots…
A SPECIES
•It includes all of the individuals of the same species living in a particular place.
•For example: all the frogs living in a lake.
A POPULATION
• •
A BIOLOGICAL ENVIRONMENT
•It is a group of individuals with similar characteristics that can reproduce within their group.
•For example: frogs, dogs, cats, parrots…
A SPECIES
•It includes all of the individuals of the same species living in a particular place.
•For example: all the frogs living in a lake.
A POPULATION
•It includes all the populations living in a particular place.
•For example: all of the frogs, aquatic plants, insects and fish that live in a lake.
A COMMUNITY
A BIOLOGICAL ENVIRONMENT
OK, now I know…
-What environment means.-What biological environment means.-What physical environment means.
BUT WHAT IS AN ECOSYSTEM?
A BIOLOGICAL ENVIRONMENT
•It is a group of individuals with similar characteristics that can reproduce within their group.
•For example: dogs, cats, parrots…
A SPECIES
•It includes all of the individuals of the same species living in a particular place.
•For example: all the frogs living in a lake.
A POPULATION
•It includes all the populations living in a particular place.
•For example: all of the frogs, aquatic plants, insects and fish that live in a lake.
A COMMUNITY
AN ECOSYSTEM
PHYSICAL ENVIRONMENT
• It includes all the NON-LIVING things• For example: water, soil and air.
• It includes all the populations living in a particular place.• For example: all of the frogs, aquatic plants, insects and
fish that live in a lake. A COMMUNITY
AN ECOSYSTEMAN ECOSYSTEM
1. Define species, habitat, population, community, ecosystem and ecologyhttps://www.youtube.com/watch?v=EKIJjFAyAaA
2. Ecology introductionhttps://www.youtube.com/watch?v=EdKhQVHc3Ao
A FEW VIDEOS TO HELP YOU UNDERSTAND THESE CONCEPTS:
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RELATIONSHIPS BETWEEN LIVING THINGS
Feeding relationships
• One living thing often feeds on another.
Competition
• Living things compete for the same resources (food, water, space, oxygen…).
Cooperative relationships
• Living things join together for a mutual advantage.
RELATIONSHIPS BETWEEN LIVING THINGS
THE BIOSPHERE
It is the part of the Earth where LIVING THINGS are found.
There are many different ECOSYSTEMS in the BIOSPHERE.
It is the part of the Earth where LIVING THINGS are found
THE BIOSPHEREECOSYSTEMS
THE BIOSPHEREECOSYSTEMS
TERRESTRIAL ECOSYSTEMS AQUATIC ECOSYSTEMS
THE BIOSPHEREECOSYSTEMS
TERRESTRIAL ECOSYSTEMS
MEADOW
FOREST
CITY
AQUATIC ECOSYSTEMS
COAST
POND
ECOSYSTEM:
PLANT SPECIES ANIMAL SPECIES
KEY CONCEPTSEnvironment: is made up of the physical and the biological environment.
-Physical environment: the combination of non-living things.
- Biological environment: the combination of living things.
-Species: group of individuals with similar characteristics that can reproduce within their group.
-Population: all of the individiuals of the same species living in a particular place.
-Community: all the populations living in a particular place.
Ecosystem: the combination of the community and the surrounding physical environment.
Biosphere: the part of the Earth where living things are found.
HOW WE ALTER ECOSYSTEMS
DIRECTLY
INDIRECTLY
LOGGING
FISHING
HUNTING
FROM NATURAL ECOSYSTEMS, SUCH AS FORESTS
TO ARTIFICIAL ECOSYSTEMS, SUCH AS FARMLAND AND CITIES.
DESERTIFICATION
SOIL EROSION
POLLUTANTS
HOW CAN YOU HELP THE ENVIRONMENT?
It is your responsibility!!
I can help the environment by…
I …..….. to help protect the environment.
ENDANGERED SPECIES AND EXTINCTION
CAUSES OF ANIMAL
EXTINCTION
