Choose your bomb
Any bomb you pick runs for 20 minutes. Three bombs are free forever, and nine more are ready whenever you want the whole crew.
Other timer lengths
Twenty minutes is test-and-task territory. This free 20 minute bomb timer handles quizzes with written answers, timed essays, silent-reading blocks, and the kind of chores that deserve a little dramatic tension.
A tip for assessments: the bomb gives a natural halfway cue. When the fuse looks half burned, students should be moving to the second half of the paper. No clock-watching math required; the picture is the information.
Twenty minutes is also a fair screen-time session or a solid instrument-practice block at home. If you need a full class period, the 30 minute and 1 hour timers run the same friendly countdown.
Get the full bomb collection
Keep kids focused, engaged, and having fun!
- ✓ Classroom cleanup
- ✓ Math drills & quizzes
- ✓ Transitions & timers
- ✓ Games & brain breaks
One-time purchases, up to 5 devices, and the classroom license covers up to 30 school devices. Secure checkout via Lemon Squeezy.