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Sec 1 NA - Tropical Rainforests
Sec 1 NA - Tropical Rainforests
Sec 1 NA - Tropical Rainforests
Sec 1 NA - Tropical Rainforests
Sec 1 NA - Tropical Rainforests
Sec 1 NA - Tropical Rainforests
Sec 1 NA - Tropical Rainforests
Sec 1 NA - Tropical Rainforests
Sec 1 NA - Tropical Rainforests
Sec 1 NA - Tropical Rainforests
Sec 1 NA - Tropical Rainforests
Sec 1 NA - Tropical Rainforests
Sec 1 NA - Tropical Rainforests
Sec 1 NA - Tropical Rainforests
Sec 1 NA - Tropical Rainforests
Sec 1 NA - Tropical Rainforests
Sec 1 NA - Tropical Rainforests
Sec 1 NA - Tropical Rainforests
Sec 1 NA - Tropical Rainforests
Sec 1 NA - Tropical Rainforests
Sec 1 NA - Tropical Rainforests
Sec 1 NA - Tropical Rainforests
Sec 1 NA - Tropical Rainforests
Sec 1 NA - Tropical Rainforests
Sec 1 NA - Tropical Rainforests
Sec 1 NA - Tropical Rainforests
Sec 1 NA - Tropical Rainforests
Sec 1 NA - Tropical Rainforests
Sec 1 NA - Tropical Rainforests
Sec 1 NA - Tropical Rainforests
Sec 1 NA - Tropical Rainforests
Sec 1 NA - Tropical Rainforests
Sec 1 NA - Tropical Rainforests
Sec 1 NA - Tropical Rainforests
Sec 1 NA - Tropical Rainforests
Sec 1 NA - Tropical Rainforests
Sec 1 NA - Tropical Rainforests
Sec 1 NA - Tropical Rainforests
Sec 1 NA - Tropical Rainforests
Sec 1 NA - Tropical Rainforests
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Sec 1 NA - Tropical Rainforests

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  • 1. Tropical Rainforests Workbook pg. 105 & 106
  • 2. Where is tropical?
  • 3. Rainforests are found in places with
    • High temperatures
    • 20 0 C to 30 0 C
    • High rainfall
    • 1000 mm to 2000 mm
  • 4.  
  • 5.  
  • 6. Layers of rainforests
    • Have 3 layers
      • Emergent
      • Canopy
      • undergrowth
  • 7. Emergent
    • 40m to 50m in height.
    • Buttress root to support the heavy and tall trunk.
    • Broad leaves to absorb as much sunlight as possible.
  • 8. Emergent
  • 9.  
  • 10. What can you tell about the roots?
  • 11. Buttress root
  • 12. Buttress root
  • 13. Buttress root
  • 14.  
  • 15. Canopy
    • 15m to 30m tall.
    • Top of the trees interlock to form a continuous layer.
    • Block out at least 70% of sunlight.
    • E.g. ferns, lianas and epiphytes
  • 16. Canopy
  • 17. Canopy
  • 18. Undergrowth
    • Consist of small trees, bushes, fern and herbs
    • Sparse
    • Receives very little sunlight.
  • 19. Undergrowth
  • 20. Undergrowth
  • 21. Undergrowth
  • 22. Layers of a tropical rainforests
  • 23. Features of rainforests
    • Trees grow very close to each other.
    • Broad leaves to absorb maximum sunlight.
    • Drip tip leaves
    • Evergreen due to heavy rainfall
    • Tall, straight and thin trunk to reach the top.
  • 24. Drip tip / broad leaves
  • 25. Evergreen
  • 26.  
  • 27.
    • Can you identify what are hanging down from the branches?
  • 28.  
  • 29.  
  • 30.  
  • 31.
    • Can you identify what is growing on the tree?
  • 32.
    • Epiphytes
      • Bird nest fern
  • 33. Future of rainforests
    • Deforestation / commercial logging
      • Raw materials
      • Make way for buildings and agriculture.
    • Extinction of animals and plants
  • 34. Rainforests in Singapore
  • 35. Bukit Timah Nature Reserve
  • 36. Bukit Timah Rainforest
  • 37. Sungei Buloh Wetland Reserve
  • 38. Rainforests in Singapore
    • Rainforests in Singapore were cleared due to
      • Growing population
      • Industrial development
  • 39. Central Catchment Nature Reserve
    • Bukit Timah Nature Reserve
    • Features
      • 164 hectares
      • Trees 30 m in height
      • Buttress root
      • Interlocking crowns
      • Forest floor dark and damp.
  • 40. Uses of rainforests in Singapore
    • Water catchment areas
      • MacRitchie
      • Seletar
      • Upper Pierce
      • Lower Pierce
    • Natural heritage
    • Recreational activities

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