Earth Science Lab

Lab details
Locate a dripping water faucet (or set a faucet to drip). Collect the water that drips from the faucet over a selected period of time (in a container sufficient to hold the water). Calculate the amount of water (in gallons) lost per unit time. Calculate how much water would be lost in one year from this drip.

  1. Determine the cost of water per thousand gallons of water (from local water board or a water bill). Calculate the cost of the drip per year from the information you have.
  2. Determine the amount and cost of the water you use in taking your shower regularly. You will need to set the shower faucet as you normally do. Record the time in minutes it takes you to shower, determine the amount of water used (by catching it and measuring it somehow) in one minute, and then calculate the gallons used, the cost per shower, and the cost year using the procedure outlined above for the dripping faucet.
  3. Next, you are to compare the amount of water used by taking your regular shower vs. the amount of water consumed in taking a “military shower” (alternately turn the water off and on to save as much water as you can).
  4. Calculate the savings of water and cost for one year to take your regular shower vs. a military shower.
  5. Calculate the flow rate of your kitchen sink per minute. Estimate how many minutes the faucet might be on over the course of one day. How much water would you estimate goes straight from tap to drain?
  6. How many toilets are in your home? Are any of them low-flow toilets? Suggest a way to make a low-flow toilet out of a regular-flow toilet.
  7. Identify at least three ways in which you can decrease water use anywhere in the home.
  8. Assuming a use of 10,000 gallons per month per household, estimate how much water must be available to support your local town population?
  9. What is the source(s) of your local water supply?
  10. Are there any pollution issues with this water source?

Deliverables:
You will submit a properly formatted paper for this lab. Please submit a discussion of your experience with this activity including a description of the data that you gathered, all of the calculations that you performed and answers to the questions. Please include a data log or table of all of the data that you collected and include all calculations.

Your paper should meet the following requirements:

  • 3-4 pages in length
  • 1-2 outside sources
  • Formatted according to the CSU-Global Guide to Writing and APA Requirements (Links to an external site.).

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GEOLOGY LAB

Glaciers

Learning Objective, you will view the shaping forces and processes of glaciers on our planet.

Go to the tif file (3) in the module. The retreating face of the glacier has been located on the map at various times since 1780. Using the scale on the map measure the rate of retreat for each segment, say 1780 to 1830, then 1830 to 1880. Calculate a yearly rate of retreat for each segment, distance divided by number of years in that segment. Now you can discuss rate of retreat; is it constant over time, is it increasing, or slowing? Where would you predict the glacier face to be today? If we assume the retreat is due to global warming, are we really the cause? Submit a short report.

Determine the average annual rate of recession for the following time periods.

1700 – 1780

1780 – 1830

1830 – 1880

1880 – 1900

1900 – 1920

1920 – 1940

1940 – 1960

1960 – 1980

1980 – 1985

Have the average annual rates been the same? Consider possible controls.

Where will the terminus of the Muir Glacier be located in 2025 if the most recent rates of recession continues?

attachment
Glacier1.tif

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Precipitation

For this lab, you will analyze weather data for one city or region over a 50-year period. You will use Microsoft Excel to create a spreadsheet and graph. Note: If you do not have Microsoft Office, click here (Links to an external site.) to access OPEN OFFICE software. To learn how to use Microsoft Excel, click here (Links to an external site.) or here (Links to an external site.).

  1. Using the following website, select a city or region. http://www.ncdc.noaa.gov/cag/time-series (Links to an external site.)
  2. Using the spreadsheet linked in Module 6, record the high annual temperatures, low annual temperatures, and the annual precipitation since 1965.
  3. Determine the average for the 50-year period (see instruction attachment for help) for each variable.
  4. Determine the difference from the 50-year average for each year.
  5. Create a graph for the difference.
  6. In a Word document, explain your assessment of the differences from 1965 to 2015 for each of the three variables.

Answer the following questions:

  1. View the animation at http://apod.nasa.gov/apod/ap130731.html (Links to an external site.). Assess the differences from 1884 to 2011. What areas of the world seem to have changed the most?
  2. How has it changed in your part of the world?
  3. Review the anomaly map at https://www.ncdc.noaa.gov/sotc/global/201513 (Links to an external site.). Choose one anomaly outside the US and explain the situation, when, where, and why it was abnormal.
  4. In your birthplace, where ever in the world it is, briefly describe the major weather anomalies in the past decade.

Attach both the Microsoft Word and Excel files in the assignment area.

Your paper should meet the following requirements:

  • 3-4 pages in length (excluding the Excel worksheet)
  • 1-2 outside sources
  • Formatted according to the CSU-Global Guide to Writing and APA Requirements (Links to an external site.).

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