Steve Spangler Science

Heartbleed Security Vulnerability Fixed   •   Get 2 Free Sick Science! Kits   •   Free Experiments by Email

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 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

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.

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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

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 Team

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

Volcano Eruptions

What do shaking a can of soda and a volcanic eruption have in common?

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What do shaking a can of soda and a volcanic eruption have incommon? Yes, both make a mess, but there’s more. Scientists arekeeping a watchful eye on Mount St. Helen's as plumes of steam andash continue to spew from the awakened volcano. Steve Spangler usessome simple experiments with soda and Alka-Seltzer to betterexplain the underground science.

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Volcanoes form when chambers of magma, or hot molten rock, boil to the surface. These magma chambers often remain sealed for hundreds of years between eruptions until the pressure builds sufficiently to break through a vent, which is a crack or weak spot in the rock above. A considerable amount of gas is also mixed in with the molten rock which accounts for the build-up in pressure.

Think of the magma as the soda inside a 2-liter plastic bottle (the magma chamber). Give the bottle a few shakes and then twist open the cap. It’s no surprise that soda spews everywhere. The same holds true for a volcano. The built-up pressure in the magma chamber breaks through a crack or weak spot and the gases force the molten rock out of the chamber. The blast creates a crater where lava and ash spill out, forming the cone. On some volcanoes, the magma chamber collapses after a violent eruption and a caldera forms, which is just a large, bowl-shaped crater.

In order to understand the build-up of pressure caused by the gases in the magma, try the following experiments:

Alka-Seltzer Rocket

Mentos Eruption

Customer Reviews

valcano eruptions Review by Jean Cruse

Loved this one

(Posted on August 19, 2009)

watch Review by robert sendelbach

it would be nice if their was a video that is why i made 4 stars i can't find how to watch it i am not really john that is just my code name

(Posted on October 27, 2011)

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