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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 51 - 60 of 106
  • 51.

    Elements Help

    Elements The elements include more than 100 known minerals. Many of the minerals in this class are made up of only a single element. Geologists sometimes subdivide this group into metal and nonmetal categories. Of all of the elements, ...

    Source: McGraw-Hill Professional
  • 52.

    Mineral and Gem Characteristics Help

    Crystalline Structure Most minerals can be found in crystalline form. Whether they are rounded, have shear faces, or have no set form, most minerals have specific internal geometric structures. Sometimes the structures are the same ...

    Source: McGraw-Hill Professional
  • 53.

    Gold, Silver, Copper, and Ores Help

    Gold, Silver, And Copper Since the first shiny speck caught the eye of early humans, gold, silver, and copper have been used for coins, jewelry, and household serving ware. Resistant to rust and corrosion, they were an excellent choice for ...

    Source: McGraw-Hill Professional
  • 54.

    Fossils Practice Test

    If necessary, review: Fossils Help Fossils, Climatic Changes, and Mineralization ...

    Source: McGraw-Hill Professional
  • 55.

    Volcano Practice Test

    If necessary, review: Volcanoes Help Lahars, Surges, and Pyroclastic Matter ...

    Source: McGraw-Hill Professional
  • 56.

    Lahars, Surges and Pyroclastic Matter Help

    Lahars And Surges Eruptions of snow-capped volcanic mountains with their super-heated ash melt peak snow and ice causing a mudflow of melt water and volcanic ash called a lahar . Lahars are extremely dangerous as they travel and kill ...

    Source: McGraw-Hill Professional
  • 57.

    Lava Help

    Lava When molten rock (magma) rises to the surface and flows out onto the land or into the oceans, it is called lava . After lava cools and hardens, it becomes rock. Figure 11-1 shows the path that magma takes to the surface to become ...

    Source: McGraw-Hill Professional
  • 58.

    Vents, Hot Spots, and Domes Help

    Vents From the deepest levels of the mantle, cracks or openings to the surface from the magma chamber are called volcanic vents . Magma is forced upward through these paths, then ejected as lava or pyroclastic ejecta. A vent located ...

    Source: McGraw-Hill Professional
  • 59.

    Types of Volcanoes Help

    Scoria Cone Volcanoes Scoria cone volcanoes , also called cinder cones , are the most common type of volcano. Reaching heights commonly less than 300 meters, cinder cones make up the smallest type of volcano.

    Source: McGraw-Hill Professional
  • 60.

    Volcanic Craters, Calderas, Gases, and Climate Help

    Craters A bowl-shaped pit or crater is found at the summit of most volcanoes, centered over the vent. During an eruption, the lava blasts or flows out of the vent until the pressure below is released. The lava that is at the tail-end of the ...

    Source: McGraw-Hill Professional

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