Kidtopia is a great search engine for children in grades K-5. They learn to do simple research, or just browse through age appropriate topics. Find stories, videos, pictures, homework help, and more. It was created by school librarians and only uses websites recommended by teachers and school librarians. It is a Google custom search engine with just the info students are looking for and without the ads, etc.
Kiddle, powered by Google’s safe search, is a visual search engine that aims to help preserve kids’ innocence by making certain searches off limits.
The site looks similar to regular Google as far as color scheme -- but instead of a white background, kids are greeted by a robot alien in outer space.
After a child inputs a search, the first three results that pop up will be pages written specifically for children. The next three results will include content written in a kid-friendly fashion. The final eight or so results will include content written for adults, but screened for certain unsavory words. All results are handpicked and checked by Kiddle editors, according to their site.