4th Grade-Ch. 3 Lesson 3 How does Matter flow in Ecosystems

3,848 views

Published on

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

No Downloads
Views
Total views
3,848
On SlideShare
0
From Embeds
0
Number of Embeds
2
Actions
Shares
0
Downloads
114
Comments
0
Likes
3
Embeds 0
No embeds

No notes for slide

4th Grade-Ch. 3 Lesson 3 How does Matter flow in Ecosystems

  1. 1. Ch. 3 Lesson 3 How Does Matter Flow in Ecosystems?
  2. 2. <ul><li>¾ of Earth’s surface- covered w/ water </li></ul>
  3. 3. <ul><li>different kinds of water ecosystems= different kinds of animals </li></ul><ul><ul><li>ex: </li></ul></ul><ul><ul><li>1. wetlands </li></ul></ul><ul><ul><li>(swamps, Everglades) </li></ul></ul><ul><ul><li>2. oceans </li></ul></ul><ul><ul><li>(coral reefs, deep sea) </li></ul></ul>
  4. 4. algae <ul><li>single celled </li></ul><ul><li>carry out photosynthesis </li></ul><ul><li>producers </li></ul>
  5. 5. food web <ul><li>shows how food chains are connected </li></ul>
  6. 7. Everglades food web
  7. 10. decay in ecosystems <ul><li>1. scavengers </li></ul><ul><li>feed on dead organisms </li></ul><ul><li>ex: insects </li></ul><ul><li>2. decomposers </li></ul><ul><li>ex: fungi & bacteria </li></ul><ul><li>break down dead </li></ul><ul><li>organisms & return </li></ul><ul><li>nutrients to ground </li></ul>
  8. 11. <ul><li>decomposers use oxygen to break down food  release carbon dioxide into air </li></ul>

×