Pick a bomb for your quiz timer
Every bomb starts at 30 seconds a question. Pick a preset or set your own time. Round Buddy is free to play. Unlock all 50+ bombs and 140+ worlds for $4.99 with no ads. Every bomb is unique! Watch for different animations, sounds, and explosions.
For home
Unlock all 50+ bombs and 140+ worlds
Every bomb is unique, with lots of different booms, and you can put any bomb in any of 140+ animated worlds. Pay once, use on up to 5 devices. Removes all outside ads from this site.
For teachers
Classroom license
Every bomb and every world on up to 30 school devices, for one payment.
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How to run a timed quiz
Use the quiz timer for individual questions, not the whole quiz. Put it on the smartboard, read a question, and pick how long to think: a quick 15 or 30 seconds for recall and vocabulary, 45 or 60 seconds for tougher ones. For longer questions, like a math problem or a reading passage, tap Custom and set the minutes. Giving the class 15 or 30 minutes for the whole quiz? Use Custom or the 15/30-minute timer instead. When the fuse blows, hit restart for the next question.
Quick recall quizzes do more than check answers; they help learning stick. Research on the “testing effect” (Roediger & Karpicke, 2006) found that briefly recalling material improves long-term retention more than simply rereading it. Keep the stakes low and the pace lively, and the bomb does the nagging for you.
Running a whole lesson on the board? The classroom timer runs the same bombs with no ads on the page. Short on time? The 30 second and 1 minute bomb timers open at those lengths, and our teacher tips cover quiz drills and timed practice.
Handy gear for quiz rounds
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Dry-Erase Lap Boards
Low-Odor Markers