Thames and Kosmos Air-Stream Machines Science Kit;

Perfect for an adventurous inventor, this 59-Pc. Hovercraft Air Stream Machines kit uses a unique blower motor and a safe, soft-bladed fan to drive the models. Your child can build a working hovercraft and other air-driven vehicles that glide across smooth floors, flat waters or cushions of air. He or she can construct a batting machine that tosses a ball upward on a stream of air; a basketball launcher for practicing hoops with air power; or a fan-driven car that drives forward, propelled by a stream of air. Experimentation with the propellers and impellers in this kit illustrates that even though air is invisible, it still has mass and can support very heavy objects under the right circumstances. Includes a full-color 32-page experiment manual, including instructions for creating 10 different models. For ages 8+. Uses 6 AA batteries (not included). Pieces (qty.): 59, Product Style: Hovercraft kit, Batteries Required: Yes, Battery Type: AA