The Talk Origins phone app contains a very helpful database of responses to those attempting to debunk evolution. Evolution is a complicated science topic and there are many, many misconceptions with new ones popping up all the time, typically pushed by young earth creationists who think the Earth was created a mere 6,000 years ago. Unless you have an immense knowledge regarding evolution, it can often be difficult to debunk these misconceptions. The Talk Origins phone app fixes that. The app divides these misconceptions into categories and sub-categories to help you easily find what you are looking for.
I highly encourage you (and your kids) to search your phones app store for Talk Origins. It's a free app filled with awesome science!