

![]() | Project title | Demonstrate how volcano's erupt using an air-pressure model |
| Difficulty Level | High school | |
| Main link | Click here to view all details of this science project (Cached)  (View 3rd party site) | |
Description | ||
| You may wish to do this demonstration outside. This apparatus will use air pressure to propel tephra (sand) into the air. A fan disperses the tephra downwind where it accumulates to form a cinder cone. Visibility of the tephra is enhanced if a white sheet or cardboard is used as a backdrop and drop cloth. | ||
Materials | ||
| This idea is contained in a third-party website. To view the science fair projects, please click on the link above. Copyright in the third party website belongs to the relevant author. | ||
Brief Instructions | ||
| [Please see third-party website for instructions] | ||
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