Description Specifications Name Homemade DIY SubmarineMaterial Plastic Size 190mmx60mmColor Blue Features Use this DIY kit to build your own underwater exploration boat Use a submarine to salvage sunken objects and learn the salvage process understand the phenomenon of sinking and floating of objects and classify sinking and floating objects Use a variety of methods to float objects that sink in the water and sink objects that float on the surface of the water learn to record tables and be able to express the results of the operation in complete language Be able to conduct experiments patiently and attentively not afraid of failure and experience the joy of using sinking and floating phenomena to solve practical problems in life Learn and understand buoyancy and engineering principles while having fun Package included 2 X Hull1 X Air Tube1 X Syringe1 X Pipe Joint1 X Thick Screw1 X Screw2 X Balloons