This is a Word document with 2 circulatory system interactives on the same website. The website requires Flash. The activities involve dragging and dropping anatomical terms to the correct anatomical structure on the visually stimulating internet pictures. I usually use this doc with a drop box. I have the students participate in the activities, snip their results and paste the snip onto the word doc as proof of completion. This avoids running around the classroom checking computers for completed activities. I learned this the hard way:).
Also, these activities can simply be projected onto a screen and the teacher can facilitate a whole-class participation or small group participation without having to use a drop box. It's all good!