The term ________, also called the looking-glass self, refers to our perception of another’s view of us.

Foliation is even evident on the microscopic scale. The following images are photomicrographs made by looking at thin slices of rock under a microscope. The individual grains of the rock are visible. Looking at the alignment of the minerals, can you determine which of the pictures properly shows the direction of compression leading to the development of this metamorphic texture?

Let’s look at a simple cross section. Here we see where a dike has intruded into some sediments. Using the principles of relative dating, label the five rock units from the oldest (1) to the youngest (5). If this is completely new to you, check out this interactive animation for a full explanation. RELATIVE AGE DATING

So, sea level is rising…What does that mean for our future? From computer models, scientists have produced the following graph to help us visualize expected amounts of sea-level change. Based on the graph, categorize the following estimations as to whether they are too high, too low, or within predicted rates of sea-level rise.

Some metamorphic rocks are not foliated because of mineral growth or recrystallization without a preferred orientation. Below are the names of several metamorphic rocks. Identify whether each rock has foliation by dragging each name to the correct box.

  There is a hole in the ozone layer? Great. What can possibly be done? This final video shows reason to be optimistic, not just about the ozone layer, but about humanity’s ability to act. The following video shows the location and intensity of the ozone hole from 1979 to 2013. Take note of the line graph, included below, that shows the minimum concentration for each year. Click here to open the video with closed captions in a new window. Since 1993, what has the trend been for minimum ozone concentrations at the South Pole?

Place the following metamorphic rocks in order from lowest-grade to highest-grade metamorphism

In this activity, we will use data from three seismic stations to determine the epicenter of the earthquake. We will use this interactive map to answer the remaining questions in this Guided Learning Exploration. Step 1. Select “Interactivity.” For the three seismic stations, select Kansas City as the red city, Charlotte as the green, and Birmingham as the blue. Then select “Accept.” Step 2. Select Kansas City and then drag the green line to where the S-wave arrives (shown on image below). The difference in time between the P-wave (yellow line) and S-wave (green line) is the S-P interval. Then select “Accept.” What is the S-P interval for the earthquake as recorded by the Kansas City, MO, seismic station?

  Atmospheric concentrations of minor gases are often given in ppm (parts per million). For example, carbon dioxide is reported at 415 ppm. What does this concentration look like? Select the image below that best approximates a concentration of 415 ppm.

In the previous section, we learned about the different types of seismic waves. Below are several illustrations showing how these waves would be felt by people at the surface. Match the seismic wave with the type of motion you would feel at the Earth’s surface. The direction of wave propagation is important!