I Have, Who Has... is a team based game that gets every student involved in review. To make this as successful as possible, I recommend timing the students so they can set a personal best as a class and attempt to beat other classes times.
This particular set covers Energy, Waves, and an introduction to atoms. The vocabulary is aligned to NC Essential Standards for Science: 6.P.1; 6.P.2; 6.P.3. The complete list of vocabulary with definitions used can be obtained from my store!
Just print the cards, cut them out and you are ready to go. Print another copy for teacher to follow along. The answer path is straight down the left side then straight down the right side for each page.
This set is 80 words long and can be separated into two games by modifying two cards to say "Who has the first card" and making a new card with "I Have the first card." I usually have my lower performing students do it over two lessons while my highest performing kids can handle all 80 at once.