Under+Pressure

Metamorphic rocks are created through intense amounts of pressure, and the heat that results. These rocks are formed deep underground, baring the weight of every rock, mineral, and piece of soil above them. But just how much weight are we talking about???

KEY INFORMATION:
 * 1) The volume of a rectangular object = (length) x (width) x (height)
 * 2) The unit of volume (in this case) is m3
 * 3) The density of rock is 2700 kg/m3
 * 4) 1 kg = 2.2 lbs.
 * 5) Density = Mass / Volume ; so...
 * 6) Mass = Density x Volume

YOUR INVESTIGATION:

Calculate the mass (in kg) of a column of rock 1 square meter at the surface of the earth with a depth of...
 * 100 m
 * 200 m
 * 300 m
 * 400 m
 * 500 m
 * 1000 m
 * 2000 m
 * 4000 m
 * 8000 m
 * 16000 m

Create a new spreadsheet like the one below using Google Docs. You will use this spreadsheet to create a scatter plot graph.
 * Depth (meters) || Mass (kilograms) || Weight (lbs.) ||
 * 100 ||  ||   ||
 * 200 ||  ||   ||
 * 300 ||  ||   ||
 * 400 ||  ||   ||
 * 500 ||  ||   ||
 * 1000 ||  ||   ||
 * 2000 ||  ||   ||
 * 4000 ||  ||   ||
 * 8000 ||  ||   ||
 * 16000 ||  ||   ||

When you have turned the data in the table above into a graph, import this graph into a new Google Document, and answer the following question in a paragraph:

//**What is the relationship between the depth of an object underground, and the weight pressing down on that object?**//

Your answer should include a description of the trends depicted in your graph, and reference to a few of the specific pieces of data that you gathered through your calculations.