Powerpoint For 3rd Grade


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Powerpoint For 3rd Grade

  1. 1. What Did We See and Talk About Last Week? <ul><li>Packing for a trip to the rainforest </li></ul><ul><li>Biodiversity mats </li></ul><ul><li>Threats to the rainforest </li></ul>
  2. 2. Where Are We? Is this a rainforest?
  3. 3. Rainfall <ul><li>Site A: Rainfall averages 125 to 660 cm (50 to 260 inches) </li></ul><ul><li>Site B: Rainfall averages 200 to 640 cm per year (78 to 252 inches) </li></ul>Fast Fact: The average rainfall per year in Death Valley? Less than 4 cm! That’s about 1 1/2 inches!
  4. 4. Trees <ul><li>Site A: Some tree species live 200 to 2,000 years </li></ul><ul><li>Site B Some tree species live 2,000 to 4,000 years </li></ul>
  5. 5. Trees <ul><li>How do we know how old a tree is? </li></ul>
  6. 6. Temperature <ul><li>Site A: Between 68 o and 93 o F </li></ul><ul><li>Site B: Between 50 o and 70 o F </li></ul>
  7. 7. Trees <ul><li>Site A: Tall, straight trunk trees with no low branches </li></ul><ul><li>Site B: Tall, straight trunk trees with no low branches </li></ul>
  8. 8. Layers <ul><li>Site A: 4 distinct layers -- Forest Floor, Understory, Canopy and Emergent </li></ul><ul><li>Site B: 3 distinct layers - Forest Floor, Understory, Canopy *some scientists now say there is an emergent layer </li></ul>
  9. 9. Forest Floor <ul><li>Site A: soil is very poor in nutrients. Nurse trees provide nutrient for new plant growth, and shelter for animals. </li></ul><ul><li>Site B: soil is rich in nutrients, all surfaces in this forest support life. Forest floor is spongy bog, composed of decaying plant matter. </li></ul>
  10. 10. Dominant Mammal Species <ul><li>Site A: jaguar, monkeys, agouti, tapir, sloth, bat </li></ul><ul><li>Site B: elk, black bear, moose, mink, otter </li></ul>
  11. 11. Now you decide: <ul><li>Is Site A a rainforest? </li></ul><ul><li>Is Site B a rainforest? </li></ul><ul><li>Do you need more information to make your decision? </li></ul>
  12. 12. Site A <ul><li>Is the Amazon Rainforest </li></ul>
  13. 13. Site B is a Temperate Rainforest <ul><li>Temperate rainforests are </li></ul><ul><li>smaller than tropical rainforests </li></ul><ul><li>are more endangered </li></ul><ul><li>Are found away from Earth’s Equator </li></ul><ul><li>Have some of the same characteristics as tropical rainforests </li></ul>
  14. 14. How can there be a rainforest in Alaska? <ul><li>Alaska's temperate old growth rainforest covers a 1,000-mile arc of coastline from Ketchikan to Kodiak, and hosts one of the world's largest remaining temperate rainforests. With more than 5 million acres of old growth forest, the region is a globally significant reservoir of biodiversity. It is one of the continent's last refuge of centuries-old coastal tree, and is habitat to large populations of animals that are rare and in jeopardy elsewhere, such as brown bears, bald eagles, wolves, goshawks and all five species of Pacific salmon. </li></ul>
  15. 15. Goshawk? What’s a Goshawk?
  16. 16. Tropical Rainforests form a belt around the Equator
  17. 17. Can you find the temperate rainforests?
  18. 18. Temperate Rainforests Are Effected by the Motion of the Ocean
  19. 19. Where would you go? Where would you choose to go exploring - the tropical rainforest or the temperate rainforest? Why?
  20. 20. How does the temperate rainforest compare to the tropical rainforest? <ul><li>Let’s create a list of similarities and differences! </li></ul>
  21. 21. Into the Rainforest Part 2 <ul><li>How do scientists monitor the rainforest? </li></ul>
  22. 22. Ground Truthing <ul><li>Very few scientists and researchers get the chance to live in the area they study year round. </li></ul><ul><li>The time they spend on the ground in an area is precious. </li></ul><ul><ul><li>They can prove a hypothesis </li></ul></ul><ul><ul><li>Calibrate instruments </li></ul></ul><ul><ul><li>Speak with residents, other researchers </li></ul></ul>