WE PRESERVE ECOSYSTEMS (3rd Grade)

WE PRESERVE ECOSYSTEMS

a grOUP OF LIVING THINGS IN A PARTICULAR PLACE

Ecosystem:

EcosystemS

have got 3 components

RELATIONSHIPS

PHYSICAL ENVIRONMENT

living things

NON-LIVING THINGS

ANIMALS

PLANTS

AQUATICECOSYSTEM

TERRESTRIALECOSYSTEM

food chain

GAME

GAME

GAME

RELATIONSHIPS

Betweensame species

Betweendifferent species

MUTUALISM

FAMILY GROUPS

COMMENSALISM

ASSOCIATIONS

PARASITISM

SOCIETIES

COMPETITION

game: match the relationships with the pictures

MUTUALISM

FAMILY GROUPS

COMPETITION

ASSOCIATIONS

COMMENSALISM

SOCIETIES

PARASITISM

MAIN TYPES OF ECOSYSTEMS

TERRESTRIAL ECOSYSTEMS

AQUATIC ECOSYSTEMS

TERRESTRIAL ECOSYSTEMS

They are covered with ice. There are no plants and very few animals. Polar bears live in the north. Penguins live in the south.

They are covered in grass. Herbivores like elephants and zebras eat the grass. Carnivores eat the herbivores.

DESERTS

FORESTS

It rains very little, so there are few plants and animals. Camels and some snakes live here.

There are many trees. Forest provide shelter and food for animals like squirrels, birds and bears.

POLAR REGIONS

GRASSLANDS

AQUATIC ECOSYSTEMS

FRESHWATER ECOSYSTEMS

SALTWATER ECOSYSTEMS

There are ecosystems near the coast and ecosystems far from the coast. There are more living things near the coast.

Rivers, streams and lakes are freshwater ecosystems. Aquatic plants, fish, amphibians and many invertebrates live here.