collective ppt

1. Chapter 4: Lesson 3:
(PARTTWO)

2. Biomes
• Large places having its own kinds of plants, animals, soil, and their own
temperature and rainfall
Examples:
Desert Forest

3. Types of biomes
Water biomesLand biomes
• Grassland
• Deciduous forest
• Tropical Rainforest
• Deserts
• Taiga
• Tundra (Polar
regions)
• Freshwater
a) Rivers and streams
b) Lakes and ponds
• Saltwater
Oceans
• Wetlands and
estuaries

4. Biomes map

5. Land ecosystems (biomes)
1) Grassland
(a)Weather
- Cool winters
and warm/hot
summers
-Very light
rainfall

6. (b) Plants in a grassland
- Grass land are covered mainly with grass
(c) Animals in a grassland
- Example: Bison
- Adaptation of Bison:
1)They have excellent sense of smell
and hearing.
2)They rub their horns against rocks and
Trees to use them in case of danger.

7. 2) Deciduous forest
(a)Weather
- Cold winters
and warm
summers

8. (b) Plants in a deciduous forest
Oak tree
Oak tree leaves
Maple tree leaves
Maple tree
- Trees lose their
leaves each year.
- The trees have
broad leaves to
get as much
sunlight as it can.

9. (c) Animals in a deciduous forest
- Example: Raccoon
- Adaptation of a raccoon:
1)They are nocturnal.
2)They have excellent sense of hearing
and night vision.
3) Excellent tree climbers.
4) Have thick layer of fur which keeps them
Warm during winter.

10. 3)Tropical rainforest
(a)Weather
- Warm weather
- Plenty of rain
throughout the
whole year

11. (b) Plants in a tropical rainforest
- Trees are so tall and leafy (almost no sunlight reaches the ground)
(c) Animals in a tropical rainforest
- Example:Toucan
Chameleon
- Adaptation of chameleon:
They change their colour (camouflage)
to protect itself from predators.

12. Layers of
rainforest

13. 4) Desert
(a)Weather
- During day:
temperature
maybe above
38ºc
- During night:
temperature may
reach -4ºc

14. (b) Plants in a desert
- Plants can live
with no rain for a
long period of
time
Cactus Yucca

15. (c) Animals in a desert
- Desert animals can go for long times with little water.
Camel Fennec fox

16. Adaptation of desert animals
(a) Camel
1) Long, thick eyelashes
2) Nostrils that can
open and close
3) A tough, leathery
mouth
4) A tough, leathery
knee pad
5)Webbed feet with
two toes
6) A hump on the
camel’s back

17. (b) Fennec fox
1) It has huge ears. It helps
to cool the fox down
when it is very hot.
2)Thick fur that keeps it
warm during the cold
nights.The fur also
protects it during the
day from the sun’s heat.
3) It is usually active
during the night when it
is cooler.

18. 5)Taiga
(a)Weather
- Winters are long
and cold.
- In the summer
the melting ice
provides the
animals with
plenty of water.

19. (b) Plants in the taiga
Spruce
Spruce leaves
Fir
Fir leaves

20. (c) Animals in a taiga
- Animals with thick fur live in the taiga.
- Example: Black bear
- Adaptation of black bear:
They have thick fur to keep them warm.

21. 6)Tundra
(a)Weather
- Winters are long
and icy cold.
- Very little
rainfall.

22. (b) Plants in a tundra
- No large trees.
- Plants grow close to the ground.
- The have shallow roots that help
them get water from melting
snow.
Grass
Shallow roots

23. (c) Animals in aTundra
- Animals are large with thick fur to protect them from the cold
weather.
Caribou Musk oxen

24. Adaptation of polar bear
1) Excellent sense of smell
2)Thick white fur
3) Strong legs
4)Thick, rough paws

25. Adaptation of penguin
7)Thick skin and lots of body fat
(blubber) to keep them warm
6) Flipper shaped wings to help
them swim at very high speed
5) Shape of the body
helps it swim faster
2)Webbed feet, help
it swim faster
3) Dark feathers on their
back absorb the sun’s
heat to warm them up.
4)Tightly packed feathers
overlap to provide
waterproofing and warmth.
1) Shape of the tail helps it
swim faster
8) Strong chest muscles to help
them swim faster

26. Water ecosystems (biomes)
1) Freshwater
(A) Flow water
Example: Streams and rivers
(B) Still water
Example: Ponds and Lakes

27. 2)Wetlands
Wet during some or all the year
Mangrove swamp Salt marshes

28. 3) Estuaries
An ecosystem where ocean and fresh water meets

29. 4) Ocean