What is thunder?

This week, I have been working on this questionnaire using Google forms. I have got all of the information out of the Kiwi Kids site and chose what subject i'd like to do. So I chose What is thunder.  If you'd like to do this quiz feel free to. What you have to do, is go onto the link that is on the form and get information to answer the questions. Please have fun answering the questions and enjoy!