Amazing 9 Layer Density Tower – SICK Science! | Science Experiments | Steve Spangler Science

Density differences cause objects to “float” in liquids that are already stacked on top of each other.

With this science-magic trick, you’ll put a new spin on our famous Density Column demonstration. First, you’ll discover how to stack nine layers of liquids on top of each other. That alone looks really cool, but then you take it up a notch by making different solid objects “float” in the middle of all those cool looking stacked liquids. You’ll surprise yourself and your friends with what you can do with the 9-Layer Density Tower.

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Homemade Hand Warmer | Science Experiments | Steve Spangler Science

Here’s a twist on the classic chemical hand warmers you can buy for you to research and improve.

If you’ve been outdoors when it’s really cold, there’s a good chance you’ve either used these yourself or wished you had. You can experience a variation on the science found inside a commercial warmer with some pretty basic materials. You’ll discover how an everyday chemical reaction like rusting is used to keep your digits toasty. This experimental version of the hand warmer is offered as a test idea and not as a definitive solution. You’re encouraged to share your science fair results online.

Source: Homemade Hand Warmer | Science Experiments | Steve Spangler Science

Blue-Bottle Reaction

Courtesy of Amanda, Wikimedia Commons

Courtesy of Amanda Slater, Wikimedia Commons

 

««« By James Palcik

A solution is prepared containing a dye. The dye, methylene blue, is colourless in a reduced state. Upon shaking the solution, the dye is oxidized and displays a blue colour. As the solution stands undisturbed, the dye fades to colourless as it is reduced. The cycle may be repeated over and over.
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Design an Ecosystem Poster Project – submitted by Michael Balzer

For this project you will be designing your own imaginary ecosystem, including the living and nonliving components.  You may work by yourself or with a partner.  No more than two people may work together on the project.  You may either hand draw your poster or can design it digitally using software of your choice.  Posters will be placed on the walls around the science classroom once you have completed and submitted them.

Link to project:
Design an Ecosystem Project

Thanks for the submission Michael! It’s a great project.