Introduction
This WebQuest on Karst areas will help you to understand karst areas and how human interaction can affect karst areas.
Task
First read ALL the instructions before starting! This is REALLY important!
Step 1: Assign a 'writer' in your group. Assign a 'leader' in your group. Assign a 'clicker' in your group.
Writer: This person does the writing for your group. Make sure you write all the names of the group members on the top of your page.
Leader: This person makes sure that you complete all sections of the WebQuest. He/she also looks after the time and makes sure you are all staying on track!
Clicker: This person is in control of the computer and clicks on all the necessary links.
Step 2: Go to http://www.watersheds.org/earth/karstmovie.htm
Make sure you open this page in a separate window as you will need to refer back to this WebQuest instruction page.
Step 3: Click on 'process' and complete this stage.
Step 4: When you have fully completed the process stage, continue onto Evaluation.
Process
1. Look at the opening screen of the movie. Identify familiar features of the landscape.
2. Click on Karst Features. The cutaway appears revealing the underground features of karst. Identify any features that you can. What is happening to the water flow?
3. Click on the arrow in the lower right corner. Buttons appear on each karst feature. Now that they are located, name any that you know. Click on the buttons for the definitions.
What karst features do you have in your area? Have you visited any of them?
4. Now click on Main Menu to go back to the opening screen, and click on Nonpoint Source Pollution. Look at the scene.
What does nonpoint source pollution mean?
5. Identify potential sources of NPS in the picture. When you have named all you can, click on Answer and check for ones you haven't named. Each button will explain how a source may contribute to NPS. Do you have any experience with any of these contributors?
6. Click on View with Cutaway to reveal more possibilities.
What now becomes more obvious?
How is the pipe different from the other contributors?
Do you have any experience with these contributors? Have you seen a sinkhole used as a dump? Have you had a septic tank cleaned at your house, or helped to install one?
7. Click on the arrow in the lower right corner. Suggest answers to the question. Click through the answers. What is the significance of the well in the illustration?
8. What ways do you know about that help manage NPS from the different contributors? What are the best management practices? What personal experience do you have with any of these practices?
Evaluation
Each student in the group now must complete the question sheet.
You can complete this together but every student must write answers on their own page!
Conclusion
Now you should have a better understanding of Karst areas and how human interaction can affect karst areas!