NWOT Steve Spangler Science Baby Soda Bottles

15 pack of test tubes comes with an activity guide with over 10 project ideas Used for safe science experiments in classrooms everywhere These thick-walled plastic tubes can be dropped or stepped on and they won’t break Unlike ordinary glass test tubes can be thrown in the dishwasher, dropped, or stepped on and they won't break! They’re interchangeable with any soda bottle cap making them shakable, unbreakable, even with your science experiment inside!