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Earth Science Help and Reviews

Here you can find study materials for earth science help. Browse the links below to find the area of earth science you're looking for help with. Each study guide comes complete with explanations and practice problems to help you learn earth science.

Study Guides

showing 71 - 80 of 106
  • 71.

    Water on the Land Study Guide

    Introduction Rain that falls on land is vital for human life and the lives of all other organisms. This water seeps into the soil, then into groundwater, and some of it eventually flows into rivers. These rivers carry sediments from land to the ocean, thus eroding ...

    Source: LearningExpress, LLC
  • 72.

    What's the Ocean Study Guide

    Introduction Some people have noted that planet Earth should really be called planet Water, or perhaps planet Ocean, because the dominant geographical feature is the huge, interconnected single ocean. What is the structure of the ocean? In this lesson, we will ...

    Source: LearningExpress, LLC
  • 73.

    The Dynamic Ocean Study Guide

    Introduction The oceans are not stagnant giant bathtubs of salty water. They are continually in motion. Indeed, the oceans are fluid. Forces upon them make them swirl at the surface and mix into their most abyssal depths. Here we will look at the various mixing ...

    Source: LearningExpress, LLC
  • 74.

    What is Soil Study Guide

    Introduction We have seen how rain infiltrates the soil and the various pathways that water can take within the soil. But what exactly is soil? We all know it, have held and smelled it, so soil seems familiar. Yet soil is actually quite mysterious, not only ...

    Source: LearningExpress, LLC
  • 75.

    Ice and Snow Study Guide

    Introduction We drink liquid water, and when the day is sweltering, we rely on ice cubes to cool off our drinks. In winters in the midlatitudes, precipitation falls as snowflakes. Some of us enjoy skiing and snowboarding on the white, solid form of water. Over ...

    Source: LearningExpress, LLC
  • 76.

    The Biosphere Puts It Together Study Guide

    Introduction The surface of the earth is a coordinated system that is called the biosphere, which includes the reservoirs of life, air, soil, and the ocean. Chemicals in these reservoirs cycle around and around, as rocks are turned into air and life, as ...

    Source: LearningExpress, LLC
  • 77.

    Earth Science and Evolution Study Guide

    Introduction Earth today is the product of 4.5 billion years of changes. Life is an important player in connecting the earth's surface reservoirs of atmosphere, ocean, and soil. Here we look at questions that surround the history of the oceans, continents, and, in ...

    Source: LearningExpress, LLC
  • 78.

    Humans as a Geological Force Study Guide

    Introduction Unlike other species, humans deploy vast arrays of chemical processes outside their biological bodies, via factories, residences, and forms of transportation. Chemical inputs and outputs from these have created a new kind of force within the systems ...

    Source: LearningExpress, LLC
  • 79.

    Frontiers in Earth Science Study Guide

    Introduction Indeed, humans have gained a tremendous amount of understanding about planet Earth, through careful observations, precise experiments, and bold theories, particularly in the last 50 years. But many mysteries remain. Solving some of these mysteries is ...

    Source: LearningExpress, LLC
  • 80.

    Climate and the Seasons Practice Questions

    Review these concepts at: Climate and the Seasons Study Guide Practice Questions 1. If Earth's diameter is 8,000 miles, how far is it from the center of the earth to the surface? ...

    Source: LearningExpress, LLC
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