How much science can you buy for under ten dollars? Enough to keep your students fascinated for hours! -- As toy-like as this bubble pen may appear, it contains a special bubble formula that produces “thicker†(almost like plastic really) long lasting bubbles that don’t pop. -- They can be stacked one on top of the other, joined to form elaborate geometric shapes or used in situations too dangerous for ordinary bubbles. -- A great way to introduce students to such concepts as surface tension, interference, and cohesion. An even better way to relax after a tough day of teaching. The pen works too! |
