How do Earth’s spheres interact?

•All of the five spheres of Earth ______as matter and energy change and cycle through the system.

•A result of these______is that they make life on Earth possible.

•Earth’s ______ interact as matter moves between them. In some______, matter moves through several spheres.

•Earth’s spheres also interact as ______moves from one ______ to another, and back and forth ______spheres.

Balancing the Budget

  • What is the source of Earth’s energy?
  • Almost all of Earth’s energy comes from the ______.
  • A tiny fraction of Earth’s ______comes from ______and ______sources such as lava and magma.
  • ______is transferred between Earth’s spheres, but it is not created or destroyed.
  • Any ______of energy to one sphere must be balanced by an equal ______of ______from another sphere.
  • The movement of energy through Earth’s system forms an______.
  • When Earth’s energy flow is ______, global temperatures stay relatively stable over long periods of time.
  • Sometimes, ______in the system cause Earth’s energy budget to become unbalanced.

What can disturb Earth’s energy budget?

  • An increase in greenhouse gases traps more ______in the ______and decreases the amount of energy radiated out to space.
  • Polar ice and glaciers reflect ______. When the ice melts, the exposed water and land absorb and then ______more energy than the ice did.
  • In each case, Earth’s atmosphere becomes warmer, which may lead to climate changes.

Assignment: Use your purple note sheet and today’s notes to help you answer the following questions.

Part One: Underline the term that best completes each of the following sentences.​

  1. The ice caps in the Antarctic and the Arctic are a part of the geosphere/cryosphere/biosphere.​
  1. Most of the water on Earth can be found in the biosphere/hydrosphere/geosphere.​
  1. The hydrosphere/geosphere/atmosphere protects organisms that live on Earth by blocking out harmful UV rays from the sun. ​

Critical thinking.Answer the following questions in complete sentences and evidence from your notes and our model of Earth lab.

  1. Which spheres are interacting when a volcano erupts and releases gases into the air?​

______

  1. Name two ways in which the Earth system relies on energy from the sun.

______

  1. How does the biosphere rely on the other spheres for survival?​

______

  1. Trace the flow of energy through Earth’s system in the space below the picture.