I use this webquest in my Marine and Aquatic Science class. The students use the computers to look up the answers. I provide links on the worksheet. The students will follow the links, read the material at the webpage, and then answer the questions on the worksheet. There is also a section of questions from Biology Corner's virtual crayfish dissection. I love this activity. It is a great way for students to use technology and still learn about crustaceans! I have not created a key for this activity; however, the students should be able to find all of the answers at the link provided.