Kahoot! is a popular online quiz website. Teachers can create quizzes with words and images that can be completed as a group activity, or done solo at home. They offer 3 levels of certification, Bronze, Silver, and Gold, and by completing them you can make yourself quite familiar with the site.
Check out the link on their certification page and see if you want to spend a few hours becoming Kahoot! certified before the school year starts! Don't worry, the certification is free!