kathryn_treacy

<p>I want to do a science fair project about photography but it has to be chemistry related. Initially, I thought of testing other substances to develop black and white film but now realized it would be too time consuming. Any other ideas? (Yes I do have access to a darkroom)</p>

<p>Hello, <br> I am doing my science fair project on photography and I need to know why my teacher lets us dump the developer into the sink but wants us to put the fixer back in the bottle. <br /> Is there a specific reason for this? Does it harm the environment?<br> Thank you!</p>