Liquid Flax can be presented as a standalone class demonstration or it can be expanded into a class activity, depending on the amount of time available. I usually present this demonstration as a science magic trick. I announce that I will place a metal ball into a bucket of beans/flax and make it disappear. The demonstration is shown in the videos below and also described in the following lesson plan. (Lesson Plan - PDF and Demo Card: Demo Card - PDF)
Expand the Demonstration:
- Try different grains.
- Test other items to see whether they sink or float in your grain of choice.
Agriculture Related Topic: Grain Bin Hazards
- Suffocation Hazards Grain Bins (University of Arkansas)