ecosystems - 150 third grade - home
TRANSCRIPT
EcosystemsStudy Jams video
Living vs. Nonliving Things
What is the difference?
-Living things are things now or once was alive
-Nonliving things have never been alive
Classifying: Putting things into groups based on similar characteristics
Examples:
Classifying
Example
What do Living things NEED to survive?
*air
*light
*food
*water
*shelter
Ways for Living Things to Protect Themselves and Adapt
Survival and seasonal behaviors -camouflage
-migration
-hibernation
-live in groups
-shedding leaves
Camouflage:
-Something that protects an animal from attack by making the animal difficult to see.
examples:
octopus, lizards, bugs, frogs, chameleons, owls,
Deer, arctic foxes and hares, lions, tigers
Migration To move from one area to another at different times of the year, or when faced with situations that force them to move to survive.
-examples: Geese, Wildebeest, butterflies, whales,
Hibernation
To spend the winter sleeping or resting
-examples:
Live in Groups Packs, swarms, herds, family, gaggle, etc.
Why does living in groups help animals?
-Provides protection-Helps with hunting/gathering food-Care for young-Cope with weather changes
Shedding leaves-Certain trees shed their leaves in the fall so they can become dormant (sleeping) so they do not use as much energy.
-example
Where do living things live?Environment: The things, both living and nonliving, that
surround a living thing.
Each living thing lives in a specific environment known as their habitat.
Habitat: A place where a population lives in an ecosystem.
Ecosystem: The living and nonliving things in an environment.
Wetlands Ocean Desert
Individual Organism: any living thing
One Clownfish
Population: A group of the same kind of living thing that
lives in the same place and time.
A group of clownfish
Community: All the populations of organisms that live in that ecosystem.
-different types of fish-coral-seaweed-sharks-octopus-whales-plankton
Ecosystem: The living and nonliving things in an environment.
-all of the living things mentioned in community
-sand
-rocks
-seashells
-shipwrecks
Biosphere-all parts of and around Earth where life can be found..
Watershed: An area of land that
carries rainfall into nearby
lakes, rivers, and streams
We live in the Delaware Bay Basin Watershed:
*Major creek in our area: Brandywine Creek
*water flows to Delaware Bay
*into Atlantic Ocean
Wetlands and Aquatic Ecosystems
Study jams: Aquatic Ecosystems
Wetlands/Aquatic ecosystems
Wetlands- areas of land that are covered with shallow water
Wetlands/Aquatic ecosystems
Lake-Large area of water surrounded by
land
Wetlands/Aquatic ecosystemsPond- (Smaller than a lake) area of water that is surrounded by land
Wetlands/Aquatic ecosystems
Stream- natural flow of water that is smaller
than a river
Changes in Environment: Fires
-changes the physical characteristics of a forest
-less shelter (less trees)
-less food (less leaves and berries)
-helps things grow (adds nutrients,
Heating seeds)
What do animals do?
Migrate, some animals die
Changes in Environment: Drought
Lack of water: rivers and ponds may dry up
What do animals do to survive?
Migrate in search of fresh water
Changes in Environment: Weather and Earth Changes
-cold and hot (blizzard, heat wave)- animals can hibernate or migrate
-Tropical Storms/ Tsunamis
-Volcanoes and Earthquakes
-Floods
Changes in Environment: -made by Animals and People
-dams
-roads
-houses and buildings
-cutting down trees
-planting gardens
-over hunting/feeding
How would a contaminated stream affect our watershed?