So you have your idea, it is cool and will show an interesting light concept.
Tomorrow (jan 29) is the last class day for collecting your data.
Next week monday we will put the book together. Remember you are to create a 2-page layout of 8.5×11 looking like a textbook. Your main experiment will be in the big column and the sidebars will contain interesting facts and websites and pictures related to your experiment.
You can make the pages digitally or by hand. I think it will look cool with a mix.
Look at bcscience8.com for textbook layout ideas.