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This topic will help you learn about Earth's true shape, the different spheres in and around Earth and interpreting various types of maps.It focuses on latitude and longitude and applies that to more detailed topographic maps used by geologists and other earth scientists.In this chapter, we will discover the relationships between weather variables and see how a change in one can affect a change in another.We will focus on different types of weather patterns and see why certain regions have different atmospheric conditions.Radiocarbon dating uses isotopes of the element carbon. Cosmic rays – high-energy particles from beyond the solar system – bombard Earth’s upper atmosphere continually, in the process creating the unstable carbon-14. Because it’s unstable, carbon-14 will eventually decay back to carbon-12 isotopes.Because the cosmic ray bombardment is fairly constant, there’s a near-constant level of carbon-14 to carbon-12 ratio in Earth’s atmosphere.
As we move throughout the year, we will revisit these concepts and apply our knowledge to specific topics.We will also focus on agents of erosion and be able to identify their different geologic features.Moreover, this chapter will revisit sedimentary rocks and see how the sediments produced during weathering factor into the formation of the different rocks.We will place emphasis on the different types of volcanoes around the world and the potential hazards that they impose on mankind.In this topic we will focus on Earth's interior and how, through the use of seismic data, we have come to understand the different properties within Earth.