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        What Is Soil?

        Learn about soil and why it is one of Earth’s most important natural resources, in these videos from NASA eClips and NOVA. Most plants and animals rely on the water and nutrients stored in soil for survival. There are many different types of soil, and each one contains different levels of living and nonliving materials. Soils that are rich in water and nutrients allow plants to grow and animals to have food and shelter. NASA scientists use information sent from satellites to study the soil and soil moisture so they can help us better understand our planet.

        To view the Background Essay, Student Handouts, and Teaching Tips for this media gallery, go to Support Materials below. This resource was developed through WGBH’s Bringing the Universe to America’s Classrooms project, in collaboration with NASA. Click here for the full collection of resources.

        What Is Soil?

        Learn about soil and why it is one of Earth’s most important natural resources, in this video from NASA eClips.

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        From Seed to Flower

        This video segment shows just how amazing plant development can be by depicting various phases of the process using time-lapse photography. Footage from NOVA: "The Shape of Things."

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