1. The document compares different ecosystem types and their climates. It discusses desert, forest, ocean, and wetland ecosystems. 2. Desert ecosystems are very hot and dry, receiving little rain. Animals and plants have adapted to survive, such as camels storing water in humps and desert animals hiding from the sun. 3. Forest ecosystems include tropical rainforests, which are hot and wet year-round, and temperate forests, which are warmer in summer and colder in winter with less rain than rainforests.

1. How do ecosystems compare ?
Chapter 3 lesson 2

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.

3. 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

4. Now let’s get to know the types of ecosystems:
1.Desert ecosystem
During day time: (Hot) During Night time : (cold)

5. A desert is always dry since it receives very
low amounts of rain each year.

6. -10
0
10
20
30
40
50
day 1 night 1 day 2 night 2
temp.

7. 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 .

8. 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

9.  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.

10. In the daytime:
In the Night time:
 Turtles hide from the sun
in their shell.
 They come out from
their shell.

11. 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.

12. 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

13. 2.Forest ecosystem
Tropical rainforest Temperate forest

14. Let‘s learn more about the
Tropical rainforest

15. 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 ?

16. 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)

17. 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.

19. Now Let‘s learn about the
Temperate forest

20. 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”

21. What does the Temperate forest looks like in
different seasons?
Spring Summer Fall Winter

22. 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

23. 3- Ocean ecosystem
Let’s take a Dive in the
LAAAAAARGE ocean !!

24. 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 .

25.  The ocean is : a large body of salt water.
 The ocean is the biggest ecosystem on earth !!

26. Shallow water = Not deep
( <100 m)
Deep water
(>1500m)

27. 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

28. • Coral reefs are the habitat of many small sea animals.
• Many Fish visit coral reefs to hunt other sea animals in their home.

29. The sun can’t reach the Deep part of the ocean
so the deep part is Dark & Cold, and has less living things.

30. 4. Wet land
Ecosystem

31.  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 wetland
Beside a river
Salt water wetland
Beside an ocean
Marshes Swamps

32. Swamp : a wetland with trees

33. Marshes: A wetland with no trees.

34. A Wetland prevents flooding.
“when water level is so high that can cover the houses”
because they are like sponges that absorb water.

35. 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”