Mentos Geyser

The Mentos Geyser experiment is so much fun!!! You will need a Be Amazing Geyser Tube Card (Thanks, Uncle John!) – it comes with a built in trigger pin and a long string so you can stand back before letting the geyser fly! I think I’ve seen them at Wal-mart for those who don’t . . . → Read More: Mentos Geyser