Simply awesome. What a great way to tie reading, writing, mathematics, chemistry, biology, physics and appreciation for the natural world all together in a fun way! You can be sure your students will remember this experience for the rest of their lives.
You know what your doing so this suggestion is probably pretty elementary. But have you exposed your local media to your project? I'm sure local TV & newspapers would find this project very interesting to their audience. This also might lead to getting some community support. Great job!