Faye, Occasionally websites are taken down. I have sold this item 5 times in the last 2 months and no one else stated issues so unfortunately between them and you an issue with a website occurred. As I use a webquest during the year I update them as necessary. Occasionally it happens where a website is removed between myself using one and a purchaser using the webquest. I will update the webquest. Please replace the second website with this link: http://oceanexplorer.noaa.gov/edu/learning/player/lesson09.html So that your students can now complete the webquest. I also came across this wave simulator that your students may find interesting: http://www.nationalgeographic.com/volvooceanrace/interactives/waves/ I tested the other 2 websites and had no issues. I do not have it listed in the description that there is an answer key, however, if you message me your email address, I will gladly put one together for you and send it your way. Mike
