- Work your way systematically through the following topic menus:
- Understanding The Basics
- How High Can The Water Get?
- On each web page that the purple buttons take you to:
- Follow all the links.
- Carefully read and understand all the material.
- Perform all the tasks.
- Answer all the questions.
- Make use of all the answer-checking devices.
- Remember, only use the smaller, red, yellow or green buttons to find your way back to specific topics. They are not a substitute for the purple buttons.
WHAT YOU HAVE TO SUBMIT: There is nothing to submit.