How Are Earth's Spheres Interacting?
ES0103  Earth's Four Spheres

Four major parts of Earth work together as a complex system: rocks, water, air, and life. On a global scale, each part can be thought of as a sphere, roughly the same size and shape as the planet. The four parts are called the geosphere, hydrosphere, atmosphere, and biosphere.

  !   Click the buttons below to highlight portions of each sphere in the photograph.

2. Describe each of Earth's four spheres. List several examples of features in each sphere.

3. Do you think clouds should be classified as part of the atmosphere, or part of the hydrosphere? Explain why.

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