This is a Word document created as an electronic assignment to be used with a website, similar to a web quest, for the answers. The website is included in the document. The KEY is also included. The student simply follows the directions on the document to navigate through the website. Easy, but challenging. I give my students this assignment only after we've already had an introduction to the kidneys; however, this may also be used as an introduction as the website is extremely comprehensive.
I created this as an electronic assignment to be used alongside the website - the student can pin the assignment on one side of their computer screen and the website on the other for easy navigation while following instructions and answering the questions. I put red asterisks wherever I need information from the student - name, date, answers to questions, etc. The student simply places their cursor between the red asterisks and begins typing in red - this way they can see that they've answered the questions, and I can easily grade it electronically. Because it is electronic, the completed assignment can be dropped into a drop box such as Blackboard. The student's submitted assignment will look much like your KEY (if done correctly:). However, this assignment can easily be transformed into a paper copy by simply adding lines for answers.
This assignment also includes 3 additional interactive websites for the students to play games and take a quiz electronically. They love this stuff. They can play the games, then screen shot their final answers and paste to the assignment for credit. This assignment will take a full 50 minute class period - maybe more or a little less, depending on the level of the learner.