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 21 - 30 of 106
  • 21.

    Radioactive Decay, Half-Life, and Carbon Dating Help

    Absolute Time The second method to study geological time is done by the chemical and radiological testing of different isotopes (forms of the same element) within rock and mineral samples. This is called absolute or ...

    Source: McGraw-Hill Professional
  • 22.

    Precambian, Paleozoic, Mesozoic, and Cenozoic Eras Help

    Geochronological Units If you visit a Museum of Natural Sciences or Natural History you won’t be looking at brightly colored paintings or finely crafted statues created by human artists. Instead, you will see thousands of fossils and ...

    Source: McGraw-Hill Professional
  • 23.

    Earth's Structure Practice Test

    If necessary, review: Earth's Inner Structure Help Buoyancy, Temperature, ...

    Source: McGraw-Hill Professional
  • 24.

    Buoyancy, Temperature, and Core Help

    Buoyancy When geologists studied earthquake data further, they found that the crust was thinnest under the oceans and thickest below high mountain ranges. It was the thickest at the highest elevations and thinnest at low elevations. In other ...

    Source: McGraw-Hill Professional
  • 25.

    Scientific Method Help

    Scientific Method Just as Nicolaus Steno in the late 1700s began describing his three laws of relative dating based on his observations, so other scientists wanted to solve the Earth’s mysteries. They wanted to understand all the ...

    Source: McGraw-Hill Professional
  • 26.

    Plate Tectonics Practice Test

    If necessary, review: Plate Tectonics Overview Help Plate Movement and ...

    Source: McGraw-Hill Professional
  • 27.

    Plate Movement and Convection Help

    Plate Tectonics Plate tectonic geologists are always chasing their work! Though they are always changing in size, the Earth has seven major continental plates. The outer crustal layer, the lithosphere, is a ...

    Source: McGraw-Hill Professional
  • 28.

    Plate Boundaries Help

    Plate Boundaries Convection causes plates to meet and separate. When this happens, there are three main types of plate boundaries that form. These boundaries include: Convergent boundaries – plates ...

    Source: McGraw-Hill Professional
  • 29.

    Fault Boundary Transformations Help

    Transform Fault Boundaries A fault is simply an opening between two plates caused by plate pressure that builds up until the surrounding rock can’t take it anymore and splits. A ...

    Source: McGraw-Hill Professional
  • 30.

    Stratigraphic Record Help

    Stratigraphic Record The stratigraphic record is the overall picture of a series of facies in a region. Stratigraphy and structural studies of continental rocks have allowed geologists to piece together the principles and ...

    Source: McGraw-Hill Professional
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