Good background picture.?

Question

I need one, chemistry related in some way, and it will also have to be easy to read text on it (I can change the text color...).
Also needs to be big enough.

Answer 1

Use Yahoo Image Search. Try key words like:
beaker, flask, molecule, atom, any chemical term and search for an image. I have found great ones to use on assignments that I make up. My science club has used some to the images (with a few adaptations) for club T-shirts.