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On Monday we learned about a vulnerability in the encryption technology that effects most of the internet, called Heartbleed. Our team grabbed their lab coats and leaped into action to patch the vulnerability on our site.

We are happy to announce SteveSpanglerScience.com is no longer vulnerable.

While we believe we have kept out all the bad guys, we want to make sure our customer's information is safe. We are requiring that all of our customers change their password for their accounts on SteveSpanglerScience.com.

To do so, click the link below and enter in the email address associated with your account. Once you receive an email to that account, follow the simple instructions to reset your password.

Reset your password - https://www.stevespanglerscience.com/customer/account/forgotpassword/

If you have any questions on password resetting, please call our Customer Service team and they will be happy to help you. 1-800-223-9080

If you have any questions about the vulnerability please email security@SteveSpangler.com

As this did effect most of the internet, we also recommend that you change your passwords on all of the websites you visit.

Thank you for being an amazing customer!

-- The SteveSpanglerScience.com Team

Questions? Give us a Call: 1-800-223-9080

Hook Cartesian Diver with Bottle

A Cartesian diver game guaranteed to get people


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Item #: WCDH-400

Usually ships the next day.

Recommended for age 6 and up with adult supervision.

Availability: In stock

Hook Cartesian Diver with Bottle

This Cartesian diver game is guaranteed to get anyone hooked on science! The soda bottle houses two divers: a hook and a sinker. The hook diver has a wire attached that is bent in the shape of a hook just big enough to latch onto the loop of wire extending over the top of the sinker diver. The sinker rests at the bottom of the bottle while the hook diver floats. The object of the game is to make the hook diver sink by squeezing the soda bottle and to hook the sinker on the bottom. It's a game of science and skill and lots of fun frustration! Recommended for children ages 6 and up.

Hook Cartesian Diver without Bottle

What's Included?
  • Hook Cartesian Diver
  • 1-liter bottle with cap
    **Bottle cap color may vary.**
What Does It Teach?

Learn about the difference in the properties of air and water. Discover the relationship between air pressure and density, and how to make a floating diver more or less buoyant. Float or sink? It's your choice!

Customer Reviews

Diver package was exactly what I expected. Review by P O'Brien

Everything you need is included (except the water). The instructions and lessons are really product specific.

I ordered this to see if I can use this project in my classes - and I now have a lot of ideas about how how to implement this for the gas laws section next fall.

Thank you! (Posted on 5/20/13)

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Warning - Choking Hazard