Borax makes it easy for your kids to experiment and grow crystals of their very own! Let’s experiment for Valentine’s Day and make heart crystals Gather your kids around the table for this fun ...

Polishing the crystals to make them optically cleaner would be a good next step, as would perhaps growing even larger crystals.

They arranged dozens of red Solo and clear plastic cups, each containing one alum crystal, on the room’s large wooden table.

The rest of the process happens more or less naturally, as crystals begin to form in the saturated solution. And boy, did they grow — long, prismatic lime-green crystals, with a beautiful ...

In 2019, the event grew to about 150 teams, from 33 states. Unlike most other events that have been disrupted by COVID-19, this particular event pretty much “carries on” as expected.

Benedict founded the competition in 2014 to provide kids with a fun science experiment while also ... What: Judging of crystals submitted for the 11th annual U.S. Crystal Growing Competition. When: ...