CK-12 Foundation
Ck 12: Earth Science: Seawater Chemistry Study Guide
[Free Registration/Login may be required to access all resource tools.] This study guide summarizes key points about the composition of ocean water. Includes a few questions to check for understanding.
US Geological Survey
Usgs: Water Q & A
You will find this list of questions interesting and amusing. "Things like, "Is salt water used for anything in the U.S.?," and How can we have a 100-year flood two years in a row?", are found on this this. Click Home to access the site...