STEM Sink or Float Activity Set

Marsoni

M251S

$174.50

Get it in 3 business days with 1 day shipping. Friday, May 29

STEM Sink or Float Activity SetSet sail with real STEM learning! Young learners can dive into early physics in a fun, colorful way with this two piece submarine and floating raft along with weights, balls, and stars to bring investigations to life. This set also features 10 detailed activity cards (with over 20 engaging, high impact activities) that cover all aspects of STEM, plus key science concepts of buoyancy, density, and more! Comprehensive activity guide with reproducible

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Your STEM Sink or Float Activity Set orders ship within 1-2 business days.

Delivery Options:

Standard: 3-7 business days
Fast: 2-3 business days
Express: 1-2 business days

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
To process your return/exchange, please contact us at [email protected]
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I really enjoy this product and it does exactly what it describes. I use it on my balcony. It is effective, but still very lightweight. It is easy to assemble as well. The price point is excellent. Also, I had an interaction with the company about an issue and they were incredibly responsive and helpful, fixing the issue immediately. Highly recommend.

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Reviewed in the United States on April 3, 2026