Grow Your Own Stalactites
In this at home experiment, your family can grow their own stalactites and stalagmites. Children of all ages will be excited and intrigued as they watch this easy experiment unfold before their eyes over the course of 2-3 weeks. This experiment takes some patience but it is well worth the wait as these fascinating structures form right before your eyes.
How to Do It
The baking soda solution travels up through the string and drips into the saucer. Over time, the water that drips evaporates leaving behind the precipitate of the baking soda which forms stalactites and stalagmites.