Popcorn Science Fair Projects [sciencetechnology-center.blogspot.com]
The race is on to find a new mayor. Thorne (Frances Fisher) endorses Dr. Herrera (Dean Marshall); Fargo (Neil Grayston) is backing Vincent (Chris Gauthier); and Zoe (Jordan Hinson) is campaigning for Lucas (Vanya Asher). Unfortunately, Zoe's political activism leads her to abandon her science project partner, Kylie (Margot Berner), with unexpected results.
Unlike how it might sound, a popcorn science fair project can actually be quite interesting. One can learn a number of facts from the data that a popcorn science fair project can supply regarding the kinds of food that we consume in our day-to-day lives. The following is a very simple popcorn science fair project, which explores the reason as to why and how popcorn pops the way it does.
The materials required are quite simple and easily available at any store keeping laboratory supplies. The basic materials required are as follows:
* Unpopped popcorn kernels
* A clean and dry beaker
* A stand for mounting the beaker
* A Bunsen burner to heat the beaker
* A closed glass box with one small outlet for performing the experiment.
* A source of light for illuminating the background
The apparatus for the popcorn science fair project may be set up quite simply. The underlying principle is that the popcorn pops when the water vapo r inside the kernels heats up and bursts the seed coat. The inner parts can then expand.
First, place around 50 kernels of popcorn inside the beaker and mount it at an angle to the vertical. Let the background near its mouth be illuminated by a light source. Place the burner underneath the beaker, keeping it at a distance of at least ten centimeters from the base of the beaker. Place the entire set-up inside the glass case.
The experiment for the popcorn science fair project can be initiated by lighting the Bunsen burner at a very low rate, letting the flame impinge lightly upon the base of the beaker. Illuminating the light source will show a steady stream of steam coming out of the beaker. Eventually, the popcorns will start popping and the stream of steam will become more prominent.
If the steam is allowed to impinge on a cold surface, water droplets will be formed immediately. All the components used in the popcorn science fair project (except the kerne ls) would be perfectly dry. This demonstrates that the steam originates from the water present inside the kernels.
This popcorn science fair project might sound simple, but precautions must be taken:
* The beaker should not be allowed to overheat, otherwise it might crack.
* The box should have at least one outlet for the air expanding inside it due to the heat.
* Adult supervision is recommended in the handling of burners and light bulbs.
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