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Sink or Float

A quick-fire educational test of buoyancy, this one asks you to predict whether each object dropped into water will sink or float. You point and click with the mouse on desktop, or tap with a finger on a touchscreen, to make your choice. It runs in the browser on a landscape screen with no installation needed, rewarding correct predictions with points.

Sink or Float — play free online

About this game

Embark on a fascinating journey into the world of physics with Sink or Float. This game is designed to challenge a youngsters understanding of buoyancy and mass in an entertaining way. The player is presented with various objects and their task is to predict whether these objects will sink or float when dropped into water. Each correct answer earns the player points, making the game engaging and educational.

How to play

To play Sink or Float players need to use their mouse or if playing on a touch device their finger to select an object Once an object is selected they must decide whether it will sink or float when submerged in water To make this decision players

Questions people ask

Can I play Sink or Float online for free?
Yes. Open Sink or Float in this browser and press Play. There is no download or account required.
Do I need to install Sink or Float?
No. The game runs inside the browser page, so there is nothing to install.
Does Sink or Float work on mobile?
This game does not list touch controls. For the best experience, use a keyboard and mouse.