Some are directories that access only certain recommended sites, others are search engines that electronically search the web for your keywords. Each of these search sites attempts to link only to safe sites, but if you access a site that makes you uncomfortable, hit the back key and then let an adult know . You may enter your question from this page. Searches can be refined by reading level and amount of graphics. You may enter your search from this page.
Ditto is a visual search engine.
Try it when you need only the perfect picture. Remember that before you copy and publish any pictures found on the Internet, you must write for permission from the owner of the image. Homework Central is a searchable directory to many extraordinary sites. The search screen is graphic intensive and slow to load, but searches can be refined by grade level. Sites are presented within frames which can be removed by holding the Mac mouse button down or left clicking on a Windows machine.