🎈 Dive into the ooey-gooey fun of science!
Steve Spangler's Jelly Marbles are super absorbent polymer beads that can absorb 300 times their weight in water, making them a fun and educational tool for Halloween parties and science experiments. They are reusable and come with an activity guide to explore the fascinating world of hydrogels.
ترست بايلوت
منذ أسبوع
منذ شهرين
