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I made ScienceFix.com to share my favorite demos that I do in my middle school science classes.  

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Media that I like...
  • Something Funny Happened on the Way to the Moon
    Something Funny Happened on the Way to the Moon
    by Sara Howard
  • NOVA - Origins
    NOVA - Origins
    starring Neil Degrasse Tyson
  • Human Body: Pushing the Limits
    Human Body: Pushing the Limits
    starring Bray Poor

Entries in video (90)

Tuesday
Jul262011

Density Column

The densities of different liquids can be easily demonstrated by making a density column.  Steve Spangler has a splendid density column demo that I decided to make on a much larger scale.  Instead of using a graduated cylinder I decided to use a fluorescent light bulb tube guard. To seal one end of the tube I used duct tape and Goop so that no liquid would leak out.  Once the tube is ready, it's just a a simple matter of pouring the liquids into the tube according to their densities. Check out the video for the results and for some additional tips. 

Tuesday
Apr122011

Density Toy

I picked up this in a toy shop.  Students are fascinated by it and always wonder how it works. Once they learn about density, they figure it out pretty easily.

 

Sunday
Mar202011

Books Smash Eggs

Eggs have an arch design in which compression forces are diverted from the top and bottom of the egg down to the sides. How much compression force can an egg take before it's smashed?  Watch the video!

Monday
Mar142011

Pendulum

How does a pendulum work? Why can't the weight of the pendulum ever go as high as the starting height? Watch the video to find out.

Sunday
Jan162011

Video Demo: Alginate Polymer

A polymer, sodium alginate, reacts with calcium chloride to produce calcium alginate. Calcium alginate is a gel that is not soluble in water.  A new branch of cooking, called molecular gastronomy, uses this technique to trap flavor sauces in gels to put over food.  Not familiar with molecular gastronomy?  Lifehacker has a good set of simple videos on the subject.  You can order the kit that I used from Educational Innovations.

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