Want to let your kid do some online research for homework and projects but you’re worried (understandably!) about what they might find? This list of safe search sites for kids lets young surfers investigate topics they’re interested in while protecting them from the stuff they’re not ready to see. It’s also a good idea to teach your kids about safe, responsible online behavior and digital citizenship. For even more reliable resources for tough assignments, check out these homework help sites and reference and research apps.