The Biology Project at the University of Arizona doesn't shy away from the big (or little) questions of life and science, and this helpful educational resource will be another educational arrow in the quiver of science educators from Seattle to Tashkent. The site provides a basic introduction to amino acids, offering a brief description of their role as the "building blocks" of protein. After reading the introduction, students can learn about the structure of amino acids, and then take on a few exercises in the "Test yourself" section of the site. Of course, that's not all, as visitors can also learn about each amino acid separately, and there's even a handy legend that makes learning that much easier.