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 61 - 70 of 106
  • 61.

    Volcanic Eruption Signals Help

    Eruption Signals Volcanoes are fairly “iffy.” If we look at all the recorded eruptions over the centuries, we would find that some smoldered for months to years, while others gave no notice at all before belching out with deadly ...

    Source: McGraw-Hill Professional
  • 62.

    Exploring the Solar System Study Guide

    Introduction From the dawn of time, humans have looked up at the stars. Planets were once thought to be stars, but planets were special because they wandered across the sky, against the other fixed stars. The word planet, in fact, comes from the ancient ...

    Source: LearningExpress, LLC
  • 63.

    Earth's Deep Layers Study Guide

    Introduction The soil we step on when we take a stroll in the woods is only a thin layer, sitting on top of rock that goes down mile after mile after mile – indeed thousands of miles, What is inside the earth? At the earth's core, temperatures are estimated ...

    Source: LearningExpress, LLC
  • 64.

    How Continents Move Study Guide

    Introduction One of the most important discoveries of science in the last fifty years is that the Earth's continents move. Not only the continents, but the oceans move, too. In fact, oceans grow and shrink over tens to hundreds of millions of years. How this all ...

    Source: LearningExpress, LLC
  • 65.

    Earthquakes, Volcanoes, and Mountains Study Guide

    Introduction The key to the workings of earthquakes, volcanoes, and mountains is the theory of plate tectonics. Most of the action occurs at the edges of plates, the margins at which they slide, bump, and collide. What causes earthquakes and volcanoes? How are ...

    Source: LearningExpress, LLC
  • 66.

    Types of Rocks Study Guide

    Introduction The dynamic earth churns new matter up to its surface and returns other matter back down to the mantle. Through all this activity, including through the actions of water and wind as well as deposition of sediments to form new types of rock, continents ...

    Source: LearningExpress, LLC
  • 67.

    Dating the Earth Study Guide

    Introduction The earth, as we've seen, is about four and a half billion years old. Some rocks exist for all ages, except for the very oldest times. The geological cycles have created and destroyed mountains and even continents during the saga of plate tectonics, ...

    Source: LearningExpress, LLC
  • 68.

    What is Air Study Guide

    Introduction From ancient times, people knew that air was crucial to life. But they did not know that air, which seems to be a single substance, is actually a mixture of many different gases. We will examine the contents of air later in this lesson. But first, we ...

    Source: LearningExpress, LLC
  • 69.

    The Dynamic Atmosphere Study Guide

    Introduction The earth is a round ball in space. It is bathed by vast quantities of rays of sunlight. These two facts create differences in the amount of sun received by various parts of the planet, and these differences, in turn, set up whirls and swirls in the ...

    Source: LearningExpress, LLC
  • 70.

    Water Cycles Study Guide

    Introduction Life as we know it cannot exist without water. Though other crucial molecules are needed for living things, one might say that water is the most important molecule of all. Where is water found? How does the water cycle work?

    Source: LearningExpress, LLC
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