Unit 4 - Matter and Energy in the Biosphere

What is This Unit about?

In this unit, you will

  • study how energy is transferred between living organisms
  • develop skills in describing food chains and webs
  • learn how matter is cycled in the environment
  • learn how people are impacting the environment
  • As you grow older, you will need this knowledge and these skills to make important decisions that will affect the quality of your life.

Unit 4 has four sections and four assignments.

Section 1: The Web of Life - Assignments 12A, 12B, 12C, 12D, 12E

Section 2: Populations - Assignments 13A, 13B, 13C, 13D, 13E

Section 3: Ecosystems and Biomes - Assignments 14A, 14B, 14C, 14D, 14E

Section 4: Protecting the Environment - Assignments 15A, 15B, 15C, 15D, 15E

Read the introduction to Matter and Energy in the Biosphere  on page 234 of your textbook.


Now, start the first section.