1. Bellwork 1. Read the passage 2
Bellwork 1. Read the passage Answer How might the island climate of Norway be different from your climate?
6 minutes Only

2. Chapter 7 Climate Interactions
Essential Question
What factors affect the Earth’s climate?

3. Lesson 1: Interactions Among Earth’s Spheres Objectives: After this lesson the student will be able to: Differentiate and show interactions among the geosphere, hydrosphere, cryosphere, atmosphere and biosphere
To keep in mind:
What are the main parts of the Earth Systems?

4. What are the main parts of the Earth Systems?
A system is a group of parts that work together as a whole.
The Earth system involves a constant flow of matter though different parts.
The constant flow, or cycling, of matter through the Earth system is driven by energy.
Energy is the ability to do work.
The energy that drives the Earth system has two main sources: heat from the sun and heat flowing out of Earth as it cools.

5. What are the main parts of the Earth Systems?
The Earth system has five main spheres: the atmosphere, the hydrosphere, the geosphere, the cryosphere, and the biosphere. As a major source of energy for Earth processes, the sun can be considered part of the Earth system as well.

6. Interactions Among Earth’s Spheres
The Earth System
Earth has five spheres.

7. Atmosphere Body of gases that surrounds our planet.
Consists of a mixture of gases composed primarily of nitrogen, oxygen, carbon dioxide, and water vapor.

8. Hydrosphere All of the water on Earth
71% of the earth is covered by water and only 29% is terra firma

9. Geosphere
The Earth's solid surface, often called the crust of the earth. It includes continental and oceanic crust as well as the various layers of the Earth's interior.

10. Geosphere
Geosphere: The solid, inorganic Earth, including Earth’s surface and layers of its interior.
The Earth is composed of nested shells that are classified according to their chemical and mechanical characteristics.

11. Biosphere All life on earth, including man, and all organisms.
The life zone on our planet distinguishes our planet from the others in the solar system.

12. Cryosphere
The portion of the Earth's surface where water is in a solid form
Snow or ice: includes glaciers, ice shelves, snow, icebergs, and arctic climatology

13. Interconnected Spheres
Spheres are closely connected
Changes are often chain reactions
A change in one sphere results in changes in others - called an event
Forest fire destroys plants in an area
Interactions between spheres
No plants => erosion
Soil in water => increased turbidity
Turbidity => impacts water plants/animals

14. Event <=> Sphere
Causes & Effects
Interactions
Event <=>Sphere
Sphere<=>Sphere

15. Understanding Interactions
Global implications
Helps people predict outcomes
Preparation for natural disasters
Environmental impacts of human activities

16. Considering Interactions Between the Spheres
Example 1
Identify some interactions that are represented in this picture

17. Example 2
What about this picture ?

18. Example 3
…or this one ?

19. Small-scale example: A forest fire