Tub Sub


SKU: EYS1919252135982 Category:


Why do things sink or float? Tub Sub knows.  As a boat, it floats. As a sub, it sinks. For a floating boat, push the flexible blue part down.  For a sinking sub, pull the blue part up and fill the bottom with water.  Only the periscope (also a handle) will stay above the water.

Encourage thinking and reasoning

For Ages 12 months +