6 th  Grade Science  Chapter 13 The Nonliving Environment Notes Section 13.3 Chimney Rock, North Carolina
<ul><li>Can matter be recycled? </li></ul><ul><li>Matter can be recycled over and over but this process requires energy. <...
 
 
 
 
<ul><li>How do producers convert energy into food? </li></ul><ul><li>Most producers convert light energy into food. Some p...
Chemosynthesis <ul><li>Not all producers rely on light for energy. </li></ul><ul><li>During the 1970s, scientists explorin...
 
 
 
<ul><li>What is a food chain? </li></ul><ul><li>A food chain shows how matter and energy pass from one organism to another...
Food Chains <ul><li>Carnivores and omnivores—animals that eat other consumers—are the third and higher steps of food chain...
 
 
<ul><li>What is an energy pyramid? </li></ul><ul><li>Energy pyramids show the amount of energy available at each feeding l...
Food Webs <ul><li>A food web is made up of many different food chains. </li></ul><ul><li>A  food web  is a model that show...
Available Energy <ul><li>The bottom of the pyramid, which represents all of the producers, is the first feeding level. </l...
Available Energy <ul><li>Only about ten percent of the energy available at each feeding level of an energy pyramid is tran...
 
<ul><li>Compare and contrast a food web and an energy pyramid. </li></ul><ul><li>Explain why there is a limit to the numbe...
Upcoming SlideShare
Loading in …5
×

Sect 13.3

821 views

Published on

Published in: Education
0 Comments
3 Likes
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total views
821
On SlideShare
0
From Embeds
0
Number of Embeds
2
Actions
Shares
0
Downloads
5
Comments
0
Likes
3
Embeds 0
No embeds

No notes for slide

Sect 13.3

  1. 1. 6 th Grade Science Chapter 13 The Nonliving Environment Notes Section 13.3 Chimney Rock, North Carolina
  2. 2. <ul><li>Can matter be recycled? </li></ul><ul><li>Matter can be recycled over and over but this process requires energy. </li></ul><ul><li>Can energy be recycled? </li></ul><ul><li>Energy is not recycled, but it is converted from one form to another. </li></ul>Key Questions 1
  3. 7. <ul><li>How do producers convert energy into food? </li></ul><ul><li>Most producers convert light energy into food. Some producers convert chemicals like sulfur into food. </li></ul><ul><li>What is chemosynthesis? </li></ul><ul><li>The production of energy-rich nutrient molecules from chemicals is called chemosynthesis. </li></ul>Key Questions 2 The Tadpole Galaxy
  4. 8. Chemosynthesis <ul><li>Not all producers rely on light for energy. </li></ul><ul><li>During the 1970s, scientists exploring the ocean floor were amazed to find communities </li></ul>at a depth of almost 3.2 km and living in total darkness.
  5. 12. <ul><li>What is a food chain? </li></ul><ul><li>A food chain shows how matter and energy pass from one organism to another. </li></ul><ul><li>What is a food web? </li></ul><ul><li>A food web is made up of many different food chains. </li></ul>Key Questions 3 The Sombrero Galaxy
  6. 13. Food Chains <ul><li>Carnivores and omnivores—animals that eat other consumers—are the third and higher steps of food chains. </li></ul>
  7. 16. <ul><li>What is an energy pyramid? </li></ul><ul><li>Energy pyramids show the amount of energy available at each feeding level. </li></ul><ul><li>How does the available energy change at each level of the energy pyramid? </li></ul><ul><li>The amount of available energy decreases from the base to the top of the energy pyramid. </li></ul>Key Questions 4
  8. 17. Food Webs <ul><li>A food web is made up of many different food chains. </li></ul><ul><li>A food web is a model that shows all the </li></ul>possible feeding relationships among the organisms in a community.
  9. 18. Available Energy <ul><li>The bottom of the pyramid, which represents all of the producers, is the first feeding level. </li></ul><ul><li>An energy pyramid shows the amount of </li></ul>energy available at each feeding level in an ecosystem.
  10. 19. Available Energy <ul><li>Only about ten percent of the energy available at each feeding level of an energy pyramid is transferred to next higher level. </li></ul><ul><li>As you move up the pyramid, the transfer of </li></ul>energy is less efficient and each level becomes smaller.
  11. 21. <ul><li>Compare and contrast a food web and an energy pyramid. </li></ul><ul><li>Explain why there is a limit to the number of links in a food chain. </li></ul><ul><li>Use your knowledge of food chains and energy pyramid to explain why the number of mice in a grassland ecosystem is greater than the number of hawks. </li></ul>Questions Section 13.3

×