Kiddle makes scanning through most results easier by providing big thumbnails. Big thumbnails are great visual cues that helps differentiate between results and help more easily locate the results you are looking for. Kiddle uses a slightly larger font than the standard Google search engine does which also helps with readability of results.
Kiddle does not collect any personally identifiable information and logs are deleted every 24 hours.
Next time your class is doing research have them use https://www.kiddle.co/ as a safer, more kid friendly search engine.