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

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

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?

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.

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.

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

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

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

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.

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.

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.

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

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

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

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

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

Example 2 What about this picture ?

Example 3 …or this one ?

Small-scale example: A forest fire