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

Contact Me
Search ScienceFix.com
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 density (9)


Stacking Liquids

Can saltwater, water, alcohol, and shampoo be stacked? This is a very simple student inquiry activty (and one of my students' favorites) that can be done in class (download handout). 


Hot and Cold Water

What happens to hot and cold water when placed in room temperature water? What if the water is colored? Watch the video for a simple demonstration of the properties of hot and cold water.


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. 


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.


Page 1 2