Download - How do ecosystems compare FINAL
How do ecosystems compare ?Chapter 3 lesson 2
.Each ecosystem has a different climate !
Ecosystem=a place where living and non living things interact
What is climate ?
Climate = Pattern of weather in an . area over a long period . of time.
a place where living and non living things interact .
Ecosystem
Can you tell the climate in these ecosystem ?
Wet climate Dry climate Hot and wet climate Cold climate
Now let’s get to know the types of ecosystems:
1.Desert ecosystem
During day time: (Hot)
During Night time : (cold)
A desert is always dry since it receives very low amounts of rain each year.
-10
0
10
20
30
40
50
day 1 night 1 day 2 night 2
temp.
How can Animals & Plants survive in the desert? The desert is a very hot & dry place to live in, so in
order for the animals & plants to survive there, they have to adapt to the desert.
Adapt= a behavior or a body part that helps the animal survive .
Examples
Camels can survive in the desert for a long time.
It stores the food & water in its hump. when the camel feels hungry, it gets energy from the stored food & water from its hump.
Hump
Camel
Snakes, lizards & kangaroo rats hide from the sun under big rocks .
In the daytime:
In the Night time:
- Snakes, lizards & rats come out from under the rocks when the sun is gone.
In the daytime:
In the Night time:
Turtles hide from the sun in their shell.
They come out from
their shell.
In the daytime:
Desert foxes hide from the sun in caves .
In the Night time:
They get out of the caves to search for food & water.
Cactus plants store water in their stems.
They also have shallow wide
spread roots that soak up the little
rain that falls.
Cactus
Cactus grow far away from each
other
2.Forest ecosystem
Tropical rainforest Temperate forest
Let‘s learn more about the Tropical rainforest
The Climate in the tropical rainforest is Hot & Wet “as it rains all the time of the year”.
What is the Climate in the Tropical rainforest ?
What plants live in the Tropical rainforest ?
As the climate is rainy “wet” all year. The tropical rainforest has Many plants and very tall trees.
(As there is plenty of water for the plants to grow)
Animals of the Tropical rainforest
You can find Millions of animals living in the
tropical rain forest as they can find plenty of water
and plants to eat.
Now Let‘s learn about the Temperate forest
What is the Climate in the Temperate forest ?
• The climate in Temperate forest is different than the Tropical rainforest.
• It rains in the Temperate forests , but they have less rain than the Tropical rainforest which rains all the year.
• It’s climate changes in the 4 seasons “It’s warm in summer , but it’s cold in winter”
What does the Temperate forest looks like in different seasons?
Spring Summer Fall Winter
Climate Hot and wet “rainy”
all year.
Living things Has more animals & plants, than any other ecosystem.
living things Has less Animals & plants than
the tropical rainforest.
Climate Gets less rain than tropical
rainforests.Warm summers and cold
winters.
Forests
Tropical rainforest Temperate forest
3- Ocean ecosystem
Let’s take a Dive in the LAAAAAARGE ocean !!
Ocean Shallow water
• The sun can reach it.• Warmer & bright water .• Has more living things .
Deep Dark water
• The sun can’t reach it .• Dark & cold water.• Has less living things .
The ocean is : a large body of salt water. The ocean is the biggest ecosystem on earth !!
The earth
has 5
“five”
oceans.
Shallow water = Not deep
( <100 m)
Deep water(>1500m)
Why can you see more living things in the shallow part of the ocean ?
As Sunlight warms the water ,it gives the producers (Water plants) the energy to make their food so Animals will find the food they need)
Energy
Energy
Energy
• Coral reefs are the habitat of many small sea animals.• Many Fish visit coral reefs to hunt other sea animals in their
home.
The sun can’t reach the Deep part of the oceanso the deep part is Dark & Cold, and has less living things.
4. Wet land Ecosystem
It’s covered with water “wet” most of the year, sometimes it gets dry. It’s found at the edges “sides” of the rivers, lakes , ponds & oceans. It may have “Fresh water or Salt water” The soil is full of “nutrients” so many plants grow there.
Wetland ecosystem
Fresh water wetlandBeside a river
Salt water wetland Beside an ocean
Marshes Swamps
Swamp : a wetland with trees
Marshes: A wetland with no trees.
A Wetland prevents flooding.“when water level is so high that can cover the houses” because they are like sponges
that absorb water.
Plants of the wetland help clean dirty water,because it takes “absorb” the wastes from the water.
Oh yes, I get it ! It’s like the
“Hoover that cleans the carpets”