Density Themed Birthday Party Ideas

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Dozen 2-Liter Bottles & Caps

Perfect for Tornado Tubes, Cartesian Divers, and more!

$16.95
Jellyfish Cartesian Diver

(2 reviews)

Just squeeze the bottle to control the diver!

$3.95

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ZigZag Density Tumbler

A hypnotizing display of surface tension, density, and insolubility.

$7.95

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Floating Yen Coins

(6 reviews)

Real Japanese 1 Yen coins made from aluminum that can float on water.

$7.95

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Diving Submarine

(12 reviews)

Powered by baking powder, it dives and surfaces just like a real sub.

$3.95

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Pumice Samples

(10 reviews)

Explore and observe the product of an actual volcano.

$5.95–$39.95

Flowing Color Spectrum

(4 reviews)

Great for sharpening those observational skills!

$6.95

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Poly Density Kit

(30 reviews)

Spontaneous order from disorder! Isn't this a violation of The Second Law of Thermodynamics??

$19.95

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Cartesian Diver Ballast Nuts

These nuts fit perfectly on our Cartesian Diver pipets.

$16.50

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Fizz-Keeper Pumps

(9 reviews)

Perfect to use with Cartesian Diver experiments.

$4.95

Cartesian Diversions Class Kit

(1 review)

Enough materials to make 60 divers like those seen in the Cartesian Diversions DVD.

$32.95
Catch and Release Cartesian Diver

(1 review)

Guaranteed to get anyone hooked on science!

$4.50–$21.95

1-Liter Bottles & Caps

(6 reviews)

Brand new, clean soda bottles with caps.

$15.95–$87.95
Graduated Transfer Pipets #222

This size pipet is just right for making super Cartesian Divers!

$10.95–$26.95

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