Dive into early physics with this two-piece submarine and floating raft along with colorful weights, rings, balls and stars to bring investigations to life. Ten detailed Activity Cards with engaging, high-impact activities cover all aspects of STEM, plus key science concepts of buoyancy, density, and more! Includes comprehensive Activity Guide. Submarine measures 6"L x 31/2"H. # Pieces In Set: 32 Learning Skill: Engineering Recommended Ages: 5 Years And Up Measurements: 13.8 Length/Inches, 13.8 Width/Inches, 3 Height/Inches Assembly: Assembled Base Material: 100% Plastic Care: Wipe Clean Country of Origin: Imported