Yes, by all means, use the internet for extra research. I am always finding new sites that are valuable. And keep in mind that our textbook is completely on line and has a lot of extra activities for the kids. Each student was given a log-in and password at the beginning of the year to access their textbook. (Hint, when you hear "I left my science book at home" you can say, "no problem we will just log into your online book." go to google and put in my.hrw.com and it will take you to the Holt website. Also try these great sites. 1. weatherquestions.com 2. sciencespot.net 3. minerals.net 4. chem4kids.com/