Lesson 4.9.3

Lesson 3 - The Web of Life

Get Focused

Energy flows through living systems. In this lesson we will investigate how energy flows through living systems and the roles of certain organisms in that flow of energy.

Consider the following essential questions as you complete Lesson 3:

  • What is an energy pyramid ?
  • What is a producer ?
  • What is a consumer ?
  • What is a food web


Explore

Click on the link below to explore the content.

Content link for Lesson  4.9.3

Vocabulary

Below is the link to the Science 20 glossary. Make sure you can define the terms associated with this lesson from the glossary

Science 20 Glossary

 

Read

Read pages 423 - 432 in the Science 20 textbook

Topic 4.9.3 Text

Self Check

Try the knowledge questions on page 432 of your Science 20 text book to check your comprehension.

Watch and Listen Watch and Listen

 

Reflect and Connect

What is are the advantages and disadvantages of being a vegetarian from an energy consumption point of view ? Post your answer to the discussion forum.

Module 9 : Lesson 3 Assignment.

Once you have completed all of the learning activities for this lesson, you can complete the online assignment.

Sci20 4.9.3 online assignment

Lesson Summary

In this lesson you learned about how energy flows through biological systems and the biosphere.

Lesson 4 will look at how to conduct a field study.