Deep Diving Seahorse - Cartesian Diver

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Learn about buoyancy with the Deep Diving Seahorse. Recycle a plastic water bottle for this fun activity. Fill the bottle with water and then drop in the seahorse. Squeeze the bott le to increase the pressure and watch your seahorse dive to hook the scallop, starfish, or conch shell. Release the bottle and the seahorse floats back to the top. This DIY set includes a Learning Booklet teach all about pressure and density while your child is just having fun. You can dive over and over again! No tools, glue or batteries required. Reuse your plastic water bottle. DIY set includes: 1 Seahorse with dropper inside 3 ocean accessories 1 learning booklet 10 beautiful "Love the Ocean” postcards 1 play stage 3 stage decorations 1 strip double sided adhesive tape Show more